Patent application number | Description | Published |
20080199026 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal in time domain; if the downmix signal corresponds to a mono signal, bypassing the downmix signal; if the number of channel of the downmix signal corresponds to at least two, decomposing the downmix signal into a subband signal, and processing the subband signal using a downmix processing information, wherein the downmix processing information is estimated based on an object information and a mix information is disclosed. | 08-21-2008 |
20080201152 | Apparatus for Encoding and Decoding Audio Signal and Method Thereof - A method and/or apparatus for encoding and/or decoding an audio signal is disclosed, in which a downmix gain is applied to a downmix signal in an encoding apparatus which, in turn, transmits, to a decoding apparatus, a bitstream containing information as to the applied downmix gain. The decoding apparatus recovers the downmix signal, using the downmix gain information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the encoding apparatus can apply an arbitrary downmix gain (ADG) to the downmix signal, and can transmit a bitstream containing information as to the applied ADG to the decoding apparatus. The decoding apparatus recovers the downmix signal, using the ADG information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the method and/or apparatus can also vary the energy level of a specific channel, and can recover the varied energy level. | 08-21-2008 |
20080205657 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal, a first multi-channel information, and an object information; processing the downmix signal using the object information and a mix information; and, transmitting one of the first multi-channel information and a second multi-channel information according to the mix information, wherein the second channel information is generated using the object information and the mix information is disclosed. | 08-28-2008 |
20080205670 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal and a downmix processing information; and, processing the downmix signal using a downmix processing information, comprising: de-correlating the downmix signal; and, mixing the downmix signal and the de-correlated signal in order to output the processed downmix signal, wherein the downmix processing information is estimated based on an object information and a mix information is disclosed. | 08-28-2008 |
20080205671 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal, an object information, and a mix information; generating a multi-channel information including at least one gain modification factor using the object information and the mix information, wherein the gain modification factor corresponds to a time-subband-variant factor for controlling gain of the downmix signal is disclosed. | 08-28-2008 |
20080208600 | Apparatus for Encoding and Decoding Audio Signal and Method Thereof - A method and/or apparatus for encoding and/or decoding an audio signal is disclosed, in which a downmix gain is applied to a downmix signal in an encoding apparatus which, in turn, transmits, to a decoding apparatus, a bit stream containing information as to the applied downmix gain. The decoding apparatus recovers the downmix signal, using the downmix gain information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the encoding apparatus can apply an arbitrary downmix gain (ADG) to the downmix signal, and can transmit a bit stream containing information as to the applied ADG to the decoding apparatus. The decoding apparatus recovers the downmix signal, using the ADG information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the method and/or apparatus can also vary the energy level of a specific channel, and can recover the varied energy level. | 08-28-2008 |
20080212726 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining difference information and entropy-decoding the difference information according to an entropy coding scheme including time grouping and frequency grouping and data-decoding the difference information according to a data decoding scheme including a pilot difference, a time difference and a frequency difference. | 09-04-2008 |
20080212803 | Apparatus For Encoding and Decoding Audio Signal and Method Thereof - A method and/or apparatus for encoding and/or decoding an audio signal is disclosed, in which a downmix gain is applied to a downmix signal in an encoding apparatus which, in turn, transmits, to a decoding apparatus, a bit stream containing information as to the applied downmix gain. The decoding apparatus recovers the downmix signal, using the downmix gain information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the encoding apparatus can apply an arbitrary downmix gain (ADG) to the downmix signal, and can transmit a bit stream containing information as to the applied ADG to the decoding apparatus. The decoding apparatus recovers the downmix signal, using the ADG information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the method and/or apparatus can also vary the energy level of a specific channel, and can recover the varied energy level. | 09-04-2008 |
20080219475 | Method for Processing Audio Signal - A method for processing an audio signal during the multi-channel audio coding is disclosed. The present invention provides the method for processing an audio signal comprising: generating a fixed output channel using a down-mix signal and a basic matrix; and generating an arbitrary output channel using the fixed output channel and a post matrix. | 09-11-2008 |
20080221907 | Method and Apparatus for Decoding an Audio Signal - An apparatus for decoding an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and spatial information, identifying a type of modified spatial information, generating the modified spatial information using the spatial information, and decoding the audio signal using the modified spatial information, wherein the type of the modified spatial information includes at least one of partial spatial information, combined spatial information and expanded spatial information. Accordingly, an audio signal can be decoded into a configuration different from a configuration decided by an encoding apparatus. Even if the number of speakers is smaller or greater than that of multi-channels before execution of downmixing, it is able to generate output channels having the number equal to that of the speakers from a downmix audio signal. | 09-11-2008 |
20080224901 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of hierarchically extracting identification information indicating at least three or more data coding schemes. The identification information indicating two coding schemes having high frequencies of use for the identification information are extracted from different layers. | 09-18-2008 |
20080228475 | Method for Generating Encoded Audio Signal and Method for Processing Audio Signal - A method for generating an encoded audio signal, and a method for processing the same during the multi-channel audio coding are disclosed. The present invention provides the method for generating an encoded audio signal comprising: including basic configuration information requisite for a multi-channel audio coding process; and including extension configuration information, wherein the extension configuration information includes configuration information of extension environment which is identified by a type identifier (ID). | 09-18-2008 |
20080228499 | Method For Generating Encoded Audio Signal and Method For Processing Audio Signal - A method for generating an encoded audio signal, and a method for processing the same during the multi-channel C audio coding are disclosed. The present invention provides the method for generating an encoded audio signal comprising: including fixed channel configuration information acting as configuration information of a predetermined output channel; and including arbitrary channel configuration information. | 09-18-2008 |
20080228501 | Method and Apparatus For Decoding an Audio Signal - An apparatus for decoding an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and spatial information, identifying a type of modified spatial information, generating the modified spatial information using the spatial information, and decoding the audio signal using the modified spatial information, wherein the type of the modified spatial information includes at least one of partial spatial information, combined spatial information and expanded spatial information. Accordingly, an audio signal can be decoded into a configuration different from a configuration decided by an encoding apparatus. Even if the number of speakers is smaller or greater than that of multi-channels before execution of downmixing, it is able to generate output channels having the number equal to that of the speakers from a downmix audio signal. | 09-18-2008 |
20080228502 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a group reference value corresponding to a plurality of data included in one group through first grouping and external grouping for the first grouping and a difference value corresponding to the group reference value and obtaining the data using the group reference value and the difference value. | 09-18-2008 |
20080235006 | Method and Apparatus for Decoding an Audio Signal - An apparatus for decoding an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and spatial information, identifying a type of modified spatial information, generating the modified spatial information using the spatial information, and decoding the audio signal using the modified spatial information, wherein the type of the modified spatial information includes at least one of partial spatial information, combined spatial information and expanded spatial information. Accordingly, an audio signal can be decoded into a configuration different from a configuration decided by an encoding apparatus. Even if the number of speakers is smaller or greater than that of multi-channels before execution of downmixing, it is able to generate output channels having the number equal to that of the speakers from a downmix audio signal. | 09-25-2008 |
20080235035 | Method For Decoding An Audio Signal - The invention relates to a method for decoding an audio signal, to allow an audio signal to be compressed and transferred more efficiently. The inventive method comprises steps of receiving an audio signal with spatial information signal, obtaining location information using the number of time slot and parameter of audio signal, establishing a multi-channel audio signal by applying spatial information signal to down-mix signal, and performing a multi-channel array for a multi-channel audio signal in response to the output channel. | 09-25-2008 |
20080235036 | Method For Decoding An Audio Signal - The invention relates to a method for decoding an audio signal, to allow an audio signal to be compressed and transferred more efficiently. The inventive method comprises steps of receiving an audio signal with spatial information signal, obtaining location information using the number of time slot and parameter of audio signal, establishing a multi-channel audio signal by applying spatial information signal to down-mix signal, and performing a multi-channel array for a multi-channel audio signal in response to the output channel. | 09-25-2008 |
20080243519 | Method For Decoding An Audio Signal - The invention relates to a method for decoding an audio signal, to allow an audio signal to be compressed and transferred more efficiently. The inventive method comprises steps of receiving an audio signal with spatial information signal, obtaining location information using the number of time slot and parameter of audio signal, establishing a multi-channel audio signal by applying spatial information signal to down-mix signal, and performing a multi-channel array for a multi-channel audio signal in response to the output channel. | 10-02-2008 |
20080252510 | Method and Apparatus for Encoding/Decoding Multi-Channel Audio Signal - Methods of encoding and decoding a multi-channel audio signal and apparatuses for encoding and decoding a multi-channel audio signal are provided. The apparatus for decoding a multi-channel audio signal includes an unpacking extracting which extracts a pilot and data regarding a quantized CLD between a pair of channels of the plurality of channels from the bitstream, a differential decoding unit which restores a quantized CLD by adding the extracted pilot to the extracted data, and an inverse quantization unit which inversely quantizes the restored quantized CLD using a quantization table that considers the location properties of the pair of channels. The methods of encoding and decoding a multi-channel audio signal and the apparatuses for encoding and decoding a multi-channel audio signal can enable an efficient encoding/decoding by reducing the number of quantization bits required | 10-16-2008 |
20080253441 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a first partial parameter using a reference value corresponding to the first partial parameter and a difference value corresponding to the reference value and deciding a parameter using the first partial parameter and a second partial parameter. | 10-16-2008 |
20080253474 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining data coding identification information and decoding data according to a data coding scheme indicated by the data coding identification information. The data coding scheme includes a pilot coding scheme at least, wherein the pilot coding scheme decodes the data using a pilot reference value corresponding to a plurality of the data and a pilot difference value, and wherein the pilot difference value is generated using the data and the pilot reference value. | 10-16-2008 |
20080255857 | Method and Apparatus for Decoding an Audio Signal - An apparatus for decoding an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and spatial information, identifying a type of modified spatial information, generating the modified spatial information using the spatial information, and decoding the audio signal using the modified spatial information, wherein the type of the modified spatial information includes at least one of partial spatial information, combined spatial information and expanded spatial information. Accordingly, an audio signal can be decoded into a configuration different from a configuration decided by an encoding apparatus. Even if the number of speakers is smaller or greater than that of multi-channels before execution of downmixing, it is able to generate output channels having the number equal to that of the speakers from a downmix audio signal. | 10-16-2008 |
20080255858 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a reference value corresponding to a plurality of data and a difference value corresponding to the reference value and entropy-decoding the difference value and obtaining the data using the reference value and the entropy-decoded difference value. | 10-16-2008 |
20080255859 | Method for Encoding and Decoding Multi-Channel Audio Signal and Apparatus Thereof - Methods and apparatuses for encoding and decoding a multi-channel audio signal are provided. In the decoding method, a down-mix signal is generated based on an input signal, and spatial information is generated based on the down-mix signal through estimation. Then, a multi-channel audio signal is generated based on the down-mix signal and the spatial information. Therefore, it is possible to compensate for a down-mix signal or generate additional spatial information by using additional information. | 10-16-2008 |
20080258943 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining data corresponding to a plurality of data coding schemes and deciding an entropy table for at least one of a pilot reference value and a pilot difference value included in the data using an entropy table identifier unique to the data coding scheme and entropy-decoding at least one of the pilot reference value and the pilot difference value using the entropy table. | 10-23-2008 |
20080260020 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes a payload part having at least one of data coding information including pilot coding information per a frame and entropy coding information and a header part having main configuration information for the payload part. | 10-23-2008 |
20080262851 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a number of data corresponding to a pilot reference value and if a number of data bands meets a predetermined condition, obtaining the pilot reference value and a pilot difference value corresponding to the pilot reference value and obtaining the data using the pilot reference value and the pilot difference value. The number of the data is obtained using the number of the data bands in which the data are included. The present invention includes the steps of deciding one of a plurality of data coding schemes using a number of data and decoding the data according to the decided data coding scheme, wherein a plurality of the data coding schemes include a pilot coding scheme at least. | 10-23-2008 |
20080262852 | Method and Apparatus For Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a difference value and index information and entropy-decoding the index information and identifying an entropy table corresponding to the entropy-decoded index information and entropy-decoding the difference value using the identified entropy table and obtaining data using a reference value corresponding to a plurality of data and the decoded difference value. | 10-23-2008 |
20080262853 | Method for Encoding and Decoding Multi-Channel Audio Signal and Apparatus Thereof - Methods and apparatuses for encoding and decoding a multi-channel audio signal are provided. In the encoding method, spatial information is calculated based on a multi-channel audio signal and a down-mix signal, and a compensation parameter that compensates for the down-mix signal is calculated based on the multi-channel audio signal and the down-mix signal. Thereafter, a bitstream is generated by encoding the spatial information, the compensation parameter, and the down-mix signal and combining the results of the encoding. Therefore, it is possible to prevent deterioration of the quality of sound regarding a multi-channel audio signal by compensating for the multi-channel audio signal using a compensation parameter that compensates for a down-mix signal. | 10-23-2008 |
20080262854 | Method for Encoding and Decoding Multi-Channel Audio Signal and Apparatus Thereof - Methods and apparatuses for encoding and decoding a multi-channel audio signal are provided. In the encoding method, spatial information that is calculated based on a multi-channel audio signal and a downmix signal is encoded, and additional configuration information is generated based on information that is selected from the encoded spatial information. The downmix signal is encoded, and then, a bitstream is generated by combining the encoded downmix signal with the encoded spatial information. Thereafter, the additional configuration information is inserted into the bitstream. Therefore, it is possible to configure an optimum bitstream according to the circumstances by retransmitting all or part of information included in a header. | 10-23-2008 |
20080269929 | Method and an Apparatus for Decoding an Audio Signal - A method of decoding for an audio signal comprises the step of receiving a downmix of an audio signal, an object information, and a mix information, the object information including an object level information, an object correlation information, and an object gain information, generating a downmix processing information using the object information and the mix information, and processing the downmix of the audio signal using the downmix processing information. Various embodiments of the present invention provide a method and an apparatus for decoding multi-object audio signals fast and efficiently by reducing process time, computer resource, thereby relieving the resource requirement like the wide bandwidth. The object parameters according to the embodiments of the present invention can provide backward compatibility in the view of the channel-oriented decoding process. | 10-30-2008 |
20080270144 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining mode information and obtaining a pilot reference value corresponding to a plurality of data and a pilot difference value corresponding to the pilot reference value according to data attribute indicated by the mode information and obtaining the data using the pilot reference value and the pilot difference value. | 10-30-2008 |
20080270145 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a group reference value corresponding to a plurality of data included in one group through grouping and a difference value corresponding to the group reference value and obtaining the data using the group reference value and the difference value. | 10-30-2008 |
20080270146 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a group reference value corresponding to a plurality of data included in one group and a difference value corresponding to the group reference value through first grouping and internal grouping for the first grouping and obtaining the data using the group reference value and the difference value. | 10-30-2008 |
20080270147 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a group reference value corresponding to a plurality of data included in one group through data grouping and internal grouping for the data grouping and a difference value corresponding to the group reference value and obtaining the data using the group reference value and the difference value. | 10-30-2008 |
20080275711 | Method and Apparatus for Decoding an Audio Signal - Method and apparatus for processing audio signals are provided. The method for decoding an audio signal includes receiving filter information, applying spatial information to the filter information to generate surround converting information, and outputting the surround converting information. The apparatus for decoding an audio signal includes a filter information receiving part receiving filter information; an information converting part applying spatial information to the filter information to generate surround converting information, and a surround converting information output part outputting the surround converting information. | 11-06-2008 |
20080275712 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a pilot reference value corresponding to a plurality of gains and a pilot difference value corresponding to the pilot reference value; and obtaining the gain using the pilot reference value and the pilot difference value. | 11-06-2008 |
20080279388 | Method and Apparatus for Processing a Media Signal - An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of generating source mapping information corresponding to each source of multi-sources by using spatial information indicating features between the multi-sources; generating at least one rendering information by using the source mapping information and filter information having a surround effect; and performing interpolation by using neighbor rendering information of the at least one rendering information. | 11-13-2008 |
20080288263 | Method and Apparatus for Encoding/Decoding - An encoding method and apparatus and a decoding method and apparatus are provided. The encoding method includes encoding data, generating a data bit array comprising the encoded data and encoding information, and generating an align bit array comprising one or more Is. According to the encoding method and apparatus and the decoding method and apparatus, it is possible to enhance the quality of decoded data by inserting various information into an align bit array that is included in a bitstream for aligning a plurality of encoded data bit arrays with one another. In addition, according to the encoding method and apparatus and the decoding method and apparatus, it is possible to efficiently utilize data bandwidths that are allocated for the encoding/decoding of data at low bitrates by enhancing the efficiency of data encoding. | 11-20-2008 |
20080294444 | Method and Apparatus for Decoding an Audio Signal - Method and apparatus for processing audio signals are provided. The method for decoding an audio signal includes extracting a downmix signal and spatial information from a received audio signal and generating a pseudo-surround signal using the downmix signal and the spatial information. The apparatus for decoding an audio signal includes a demultiplexing part extracting a downmix signal and spatial information from a received audio signal and a pseudo-surround decoding part generating a pseudo-surround signal from the downmix signal, using the spatial information. | 11-27-2008 |
20080304513 | Method For Signaling of Splitting Information - A signaling method for signal division information is disclosed. The signaling method divides a signal into several signals, and effectively represents division information of the divided signals. The present invention provides the method signaling for signaling signal division information comprising: assigning number of lower nodes equal to the number of divisions to a lower layer if a node of an upper layer is represented by a division identifier (ID); and un-assigning any lower node to the lower layer if the node of the upper layer is represented by a non-division identifier (ID), wherein the signal division information includes the division ID and the non-division ID indicating the presence or absence of a signal division at a node of a layer. | 12-11-2008 |
20080310640 | Method and Apparatus for Processing a Media Signal - An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of generating rendering information by using spatial information indicating features between multi-sources and filter information having a surround effect; and generating a surround signal by applying the rendering information to a downmix signal generated by downmixing the multi-sources, wherein a tab number of a filter used in applying the rendering information to generate the surround signal is variable. | 12-18-2008 |
20080319765 | Method and Apparatus for Decoding a Signal - An apparatus for decoding a signal and method thereof are disclosed, by which the audio signal can be controlled in a manner of changing/giving spatial characteristics (e.g., listener's virtual position, virtual position of a specific source) of the audio signal. The present invention includes receiving an object parameter including level information corresponding to at least one object signal, converting the level information corresponding to the object signal to the level information corresponding to an output channel by applying a control parameter to the object parameter, and generating a rendering parameter including the level information corresponding to the output channel to control an object downmix signal resulting from downmixing the object signal. | 12-25-2008 |
20090003611 | Method and Apparatus for Processing a Media Signal - An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of extracting a downmix signal from a bitstream; generating a decorrelated downmix signal by applying a decorrelator to the downmix signal; and generating a surround signal by applying rendering information for generating a surround signal to the downmix signal and the decorrelated downmix signal. | 01-01-2009 |
20090003635 | Method and Apparatus for Processing a Media Signal - An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of generating source mapping information corresponding to each source of multi-sources by using spatial information indicating features between the multi-sources; generating sub-rendering in | 01-01-2009 |
20090006105 | Method for Generating Encoded Audio Signal and Method for Processing Audio Signal - A method for generating an encoded audio signal, and a method for processing the same during the multi-channel audio coding are disclosed. The present invention provides the method for generating an encoded audio signal comprising: generating basic spatial information including basic configuration information requisite for a multi-channel audio coding process and basic data corresponding to the basic configuration information; and generating extension spatial information including extension configuration information selectively required for the multi-channel audio coding process and extension data corresponding to the extension configuration information. | 01-01-2009 |
20090006106 | Method and Apparatus for Decoding a Signal - An apparatus for decoding a signal and method thereof are disclosed, by which the audio signal can be controlled in a manner of changing/giving spatial characteristics (e.g., listener's virtual position, virtual position of a specific source) of the audio signal. The present invention includes receiving an object parameter; extracting object information by parsing the received object parameter; generating a control parameter using the extracted object information and control information including at least one of user control information, default control information, device control information, and device information; and, generating a rendering parameter determining a position and level of an object in an output signal using the object parameter and the control parameter. | 01-01-2009 |
20090010440 | Apparatus and Method for Encoding/Decoding Signal - An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a down-mix signal and spatial information regarding a plurality of channels from an input bitstream, and generating a three-dimensional (3D) down-mix signal by performing a 3D rendering operation on the down-mix signal using the spatial information and a filter, wherein the sum of the number of valid signals of the down-mix signal, the number of valid signals of the spatial information, and the number of valid signals of co-efficients of the filter is less than the number of valid signals of the 3D down-mix signal. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment. | 01-08-2009 |
20090012796 | Apparatus and Method for Encoding/Decoding Signal - An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a compatible down-mix signal optimized for a first multi-channel decoder from the input bitstream, converting the compatible down-mix signal to be optimized for a second multi-channel signal by performing a compatibility processing operation on the compatible down-mix signal, and generating a three-dimensional (3D) down-mix signal by performing a 3D rendering operation on the converted down-mix signal. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment. | 01-08-2009 |
20090028344 | Method and Apparatus for Processing a Media Signal - An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of generating source mapping information corresponding to each source of multi-sources by using spatial information indicating features between the multi-sources; generating at least one rendering information by using the source mapping information and filter information having a surround effect; and performing smoothing by using neighbor rendering information of the at least one rendering information. | 01-29-2009 |
20090028345 | Apparatus and Method for Encoding/Decoding Signal - An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes skipping extension information included in an input bitstream, extracting a three-dimensional (3D) down-mix signal and spatial information from the input bitstream, removing 3D effects from the 3D down-mix signal by performing a 3D rendering operation on the 3D down-mix signal, and generating a multi-channel signal using a down-mix signal obtained by the removal and the spatial information. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment. | 01-29-2009 |
20090037189 | Apparatus and Method for Encoding/Decoding Signal - An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a three-dimensional (3D) down-mix signal and spatial information from an input bitstream, removing 3D effects from the 3D down-mix signal by performing a 3D rendering operation on the 3D down-mix signal, and generating a multi-channel signal using the spatial information and a down-mix signal obtained by the removal. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of a reproduction environment. | 02-05-2009 |
20090041113 | Method for Processing a Signal and Apparatus for Processing a Signal - A method and apparatus for processing a signal compressed in accordance with a specific alternative coding scheme are disclosed. In detail, a coding method for signal compression and signal restoration using a specific alternative coding scheme, and an apparatus therefor are disclosed. Data coding and entropy coding according to the present invention are executed under the condition in which they have a co-relation with each other. Grouping is executed for an enhancement in coding efficiency. The method for signal processing includes obtaining a group reference value corresponding to a plurality of data included in one group, through grouping, and a difference value corresponding to the group reference value, and obtaining the data using the group reference value and the difference value. | 02-12-2009 |
20090048847 | Method and Apparatus for Encoding/Decoding Multi-Channel Audio Signal - Methods of encoding and decoding a multi-channel audio signal and apparatuses for encoding and decoding a multi-channel audio signal are provided. The method of decoding a multi-channel audio signal includes an unpacking unit which extracts a quantized CLD between a pair of channels of a plurality of channels from a bitstream, and an inverse quantization unit which inverse-quantizes the quantized CLD using a quantization table that considers the location properties of the pair of channels. The methods of encoding and decoding a multi-channel audio signal and the apparatuses for encoding and decoding a multi-channel audio signal can enable an efficient encoding/decoding by reducing the number of quantization bits required. | 02-19-2009 |
20090049071 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining index information and entropy-decoding the index information and identifying a content corresponding to the entropy-decoded index information and selecting entropy table. | 02-19-2009 |
20090052519 | Method of Processing a Signal and Apparatus for Processing a Signal - A method and apparatus for signal processing which enable data compression and recovery with high transmission efficiency are disclosed. Data coding and entropy coding are performed with correlation and grouping is used to increase coding efficiency. A method for signal processing according to this invention, the method includes decapsulating the signal received over an Internet protocol network, obtaining data coding identification information from the de-capsulated signal and data-decoding data according to a data coding scheme indicated by the data coding identification information, wherein the data coding scheme includes at least a pilot coding scheme, the pilot coding scheme decodes the data using a pilot reference value corresponding to a plurality of data and a pilot difference value, and the pilot difference value is generated using the data and the pilot reference value. | 02-26-2009 |
20090055196 | Method of Encoding and Decoding an Audio Signal - An apparatus for encoding and decoding an audio signal and method thereof are disclosed, by which compatibility with a player of a general mono or stereo audio signal can be provided in coding an audio signal and by which spatial information for a multi-channel audio signal can be stored or transmitted without a presence of an auxiliary data area. The present invention includes extracting side information embedded in non-recognizable component of audio signal components and decoding the audio signal using the extracted side information. | 02-26-2009 |
20090060205 | Apparatus and Method for Encoding/Decoding Signal - An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting an arbitrary down-mix signal and compensation information necessary for compensating for the arbitrary down-mix signal from the input bitstream, compensating for the arbitrary down-mix signal using the compensation information, and generating a three-dimensional (3D) down-mix signal by performing a 3D rendering operation on the compensated arbitrary down-mix signal. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment. | 03-05-2009 |
20090067634 | Enhancing Audio With Remixing Capability - One or more attributes (e.g., pan, gain, etc.) associated with one or more objects (e.g., an instrument) of a stereo or multi-channel audio signal can be modified to provide remix capability. | 03-12-2009 |
20090091481 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a group reference value corresponding to a plurality of data included in one group through grouping including first grouping and second grouping and a first difference value corresponding to the group reference value and obtaining the data using the group reference value and the first difference value. | 04-09-2009 |
20090119110 | Method of Encoding and Decoding an Audio Signal - An apparatus for encoding and decoding an audio signal and method thereof are disclosed, by which compatibility with a player of a general mono or stereo audio signal can be provided in coding an audio signal and by which spatial information for a multi-channel audio signal can be stored or transmitted without a presence of an auxiliary data area. The present invention includes extracting side information embedded in non-recognizable component of audio signal components and decoding the audio signal using the extracted side information. | 05-07-2009 |
20090141799 | Method of Processing a Signal and Apparatus for Processing a Signal - A method and apparatus for processing a signal compressed in accordance with a specific alternative coding scheme are disclosed. In detail, a coding method for signal compression and signal restoration using a specific alternative coding scheme, and an apparatus therefor are disclosed. Data coding and entropy coding according to the present invention are executed under the condition in which they have a co-relation with each other. The method for signal processing includes obtaining a pilot reference value corresponding to a plurality of data and a pilot difference value corresponding to the pilot reference value, and obtaining the data using the pilot reference value and the pilot difference value. | 06-04-2009 |
20090161695 | Method of Processing a Signal and Apparatus for Processing a Signal - A method and apparatus for signal processing which enable data compression and recovery with high transmission efficiency are disclosed. Data coding and entropy coding are performed with correlation and grouping is used to increase coding efficiency. A method for signal processing according to this invention, the method includes decapsulating the signal received over an Internet protocol network, obtaining a pilot reference value corresponding to a plurality of data and a pilot difference value corresponding the pilot reference value from the decapsulated signal and obtaining the data using the pilot reference value and the pilot difference value. | 06-25-2009 |
20090161795 | Method and Apparatus for Processing a Signal - The present invention relates to a method and apparatus for processing a signal. An object of the present invention devised to solve the problem lies on a method and apparatus for processing a signal, which allows a signal having optimized signal transmission efficiency to be transmitted/received. According to an aspect of the present invention, there is provided a method of processing a signal including receiving a broadcasting signal including audio data coded using a pilot reference value and a pilot difference value, demodulating the broadcasting signal in consideration of a scattered pilot which varies over time and a continual pilot which is fixed over time in a frame of the received broadcasting signal and decoding the demodulated signal to obtain a broadcasting transmission stream, demultiplexing the broadcasting transmission stream to obtain coded audio data in an Internet protocol (IP) packet and an identifier for identifying a method of decoding the audio data, obtaining the pilot reference value corresponding to a plurality of data and the pilot difference value corresponding to the pilot reference value from the coded audio data and obtaining the audio data using the pilot reference value and the pilot difference value. | 06-25-2009 |
20090164227 | Apparatus for Processing Media Signal and Method Thereof - The present invention relates to an apparatus for processing a media signal and method thereof. A method of processing a media signal according to the present invention includes extracting a downmix signal from a bitstream, extracting at least one of first spatial information and second spatial information from the bitstream, and generating multi-channels using the extracted spatial information and the downmix signal. And, the present invention provides a decoding method and apparatus for generating various kinds of multi-channels. | 06-25-2009 |
20090171676 | METHOD AND AN APPARATUS FOR DECODING AN AUDIO SIGNAL - A method of decoding for an audio signal comprises the step of receiving a downmix of an audio signal, an object information, and a mix information, the object information including an object level information, an object correlation information, and an object gain information, generating a downmix processing information using the object information and the mix information, and processing the downmix of the audio signal using the downmix processing information. Various embodiments of the present invention provide a method and an apparatus for decoding multi-object audio signals fast and efficiently by reducing process time, computer resource, thereby relieving the resource requirement like the wide bandwidth. The object parameters according to the embodiments of the present invention can provide backward compatibility in the view of the channel-oriented decoding process. | 07-02-2009 |
20090216541 | Method of Encoding and Decoding an Audio Signal - An apparatus for encoding and decoding an audio signal and method thereof are disclosed, by which compatibility with a player of a general mono or stereo audio signal can be provided in coding an audio signal and by which spatial information for a multi-channel audio signal can be stored or transmitted without a presence of an auxiliary data area. The present invention includes extracting side information embedded in non-recognizable component of audio signal components and decoding the audio signal using the extracted side information. | 08-27-2009 |
20090216542 | METHOD AND APPARATUS FOR ENCODING AND DECODING AN AUDIO SIGNAL - A method and apparatus for encoding and decoding an audio signal are provided. The present invention includes receiving an audio signal including a downmix signal and a spatial information signal, if a header is included in the spatial information signal, extracting configuration information from the header, extracting spatial information included in the spatial information signal, and converting the downmix signal to a multi-channel signal using the configuration information and the spatial information. Accordingly, the header can be selectively included in the spatial information signal, thereby if the header is plurally included in the spatial information signal, it is able to decode spatial information in case of reproducing the audio signal from a random point. | 08-27-2009 |
20090216543 | METHOD AND APPARATUS FOR ENCODING AND DECODING AN AUDIO SIGNAL - A method and apparatus for encoding and decoding an audio signal are provided. The present invention includes receiving an audio signal including an audio descriptor, recognizing that the audio signal includes a downmix signal and a spatial information signal using the audio descriptor, and converting the downmix signal to a multi-channel signal using the spatial information signal, wherein the spatial information signal includes a header each a preset temporal or spatial interval, and the spatial information signal includes a header each a preset temporal or spatial interval thereby the header can be selectively included in the spatial information signal and if the header is plurally included in the spatial information signal, it is able to decode spatial information in case of reproducing the audio signal from a random point. | 08-27-2009 |
20090219182 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining index information and data and entropy-decoding the index information and identifying an entropy table corresponding to the entropy-decoded index information and entropy-decoding the data using the identified entropy table. | 09-03-2009 |
20090220095 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes an audio signal receiving unit receiving the audio signal including at least one object; a preset metadata receiving unit receiving preset metadata from preset information; a preset rendering data receiving unit obtaining preset matrix from the preset information; a display unit displaying the preset metadata; an input unit receiving command for selecting one of the preset metadata; and an object adjusting unit adjusting output level of the object according to the output channel by using the preset matrix corresponding to the selected preset metadata. | 09-03-2009 |
20090222118 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and preset information; obtaining preset matrix from the preset information, wherein the preset matrix indicates contribution degree of the object to output channel; and adjusting output level of the object by using the preset matrix. | 09-03-2009 |
20090222261 | Apparatus and Method for Encoding and Decoding Signal - Encoding and decoding apparatuses and encoding and decoding methods are provided. The decoding method includes extracting a plurality of encoded signals from an input bitstream, determining which of a plurality of decoding methods is to be used to decode each of the encoded signals, decoding the encoded signals using the determined decoding methods, synthesizing the decoded signals, and restoring an original signal by performing a post-processing operation on the single signal. Accordingly, it is possible to encode signals having different characteristics at an optimum bitrate by classifying the signals into one or more classes according to the characteristics of the signals and encoding each of the signals using an encoding unit that can best serve the class where a corresponding signal belongs. In addition, it is possible to efficiently encode various signals including audio and speech signals. | 09-03-2009 |
20090240504 | Method and Apparatus for Processing an Audio Signal - A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal and an extension signal included in the ancillary signal from a received bit stream, reading length information for the extension signal, skipping decoding of the extension signal or not using a result of the decoding based on the length information, and generating the audio signal using the ancillary signal. Accordingly, in case of processing the audio signal by the present invention, it is able to reduce a corresponding load of operation to enable efficient processing and enhance a sound quality. | 09-24-2009 |
20090245398 | Method of Processing a Signal and Apparatus for Processing a Signal - The present invention relates to a method and apparatus for processing a signal. An object of the present invention devised to solve the problem lies on a method and apparatus for processing a signal, which allows a signal having optimized signal transmission efficiency to be transmitted/received. According to an aspect of the present invention, there is provided A method for processing a signal, the method including receiving a broadcasting signal including data coded using a group reference value corresponding to a plurality of data included in one of groups formed according to data grouping and a difference value corresponding to the group reference value, demodulating the broadcasting signal in consideration of a scattered pilot which varies over time and a continual pilot which is fixed over time in a frame of the received broadcasting signal and decoding the demodulated signal to obtain a broadcasting transmission stream, demultiplexing the broadcasting transmission stream to obtain data coding identification information and decapsulating Internet protocol (IP) packets having the coded data, obtaining the group reference value corresponding to the plurality of data and the difference value corresponding to the group difference value through grouping from the decapsulated data and obtaining the data using the group reference value and the difference value. | 10-01-2009 |
20090245524 | Apparatus and Method for Encoding/Decoding Signal - An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a down-mix signal and down-mix identification information from an input bitstream, determining, based on the down-mix identification information, whether the down-mix signal is a 3D down-mix signal obtained by performing a three-dimensional (3D) rendering operation, and if the down-mix signal is not 3D down-mix signal, generating a 3D down-mix signal by performing a 3D rendering operation. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment. | 10-01-2009 |
20090248423 | Apparatus and Method for Encoding/Decoding Signal - An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a three-dimensional (3D) down-mix signal from an input bitstream, generating a down-mix signal with 3D effects removed therefrom by performing a 3D rendering operation on the extracted 3D down-mix signal, and generating a 3D down-mix signal with 3D effects by performing a 3D rendering operation on the generated down-mix signal. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment. | 10-01-2009 |
20090254354 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a pilot reference value corresponding to a plurality of data and a pilot difference value corresponding to the pilot reference value and obtaining the data using the pilot reference value and the pilot difference value. | 10-08-2009 |
20090262957 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof are disclosed. The preset invention includes
| 10-22-2009 |
20090265023 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof are disclosed. The preset invention includes a signal receiving unit a plurality of preset informations and preset attribute information; a display unit displaying a plurality of preset metadatas; a preset mode input unit being inputted a select signal selecting one preset metadata; a preset mode select unit selecting the preset metadata and a preset information based on the select signal; a static preset mode receiving unit receiving the preset information and the preset metadata corresponding all data regions of the downmix signal based on the preset attribute information; a dynamic preset mode receiving unit receiving the preset information and the preset metadata corresponding single data region of the downmix signal based on the preset attribute information; and a rendering unit controlling the object by applying the preset information to the all data regions or the single data region of the downmix signal. | 10-22-2009 |
20090265176 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof are disclosed. The preset invention includes receiving a downmix signal including at least one object, object information based on attribute of the object, preset information to render the downmix signal and preset attribute information indicating attribute of the preset information; rendering the downmix signal by applying the preset information to all data regions of the downmix signal, if the preset information is included in an extension region of a configuration information region based on the preset attribute information; and rendering the downmix signal by applying the preset information to one corresponding data region of the downmix signal, if the preset information is included in an extension region of a data region based on the preset attribute information. | 10-22-2009 |
20090271015 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof are disclosed. The preset invention includes receiving object information and a downmix signal including at least one object, the object information comprising data type information and at least one of object gain and object gain ratio; determining whether preset information to render the object is included in the extension region of the object information, based on the data type information; generating initial preset information to render the object by using at least one of the object gain and the object gain ration, if the preset information is not included in the object information; and rendering the object being included the downmix signal by using the initial preset information. | 10-29-2009 |
20090274308 | Method and Apparatus for Processing a Media Signal - An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of extracting spatial information and a downmix signal from a bitstream; and generating rendering information by using the spatial information and filter information having a surround effect, wherein the rendering information comprises first rendering information applied to one channel of the downmix signal extracted from the bitstream and then transmitted on the same channel and second rendering information applied to the channel and then transmitted on another channel. | 11-05-2009 |
20090281812 | Apparatus and Method for Encoding and Decoding Signal - Encoding and decoding apparatuses and encoding and decoding methods are provided. The decoding method includes extracting a plurality of encoded signals and division information of the encoded signals from an input bitstream, determining which of a plurality of decoding methods is to be used to decode each of the encoded signals, decoding the encoded signals using the determined decoding methods, and synthesizing the decoded signals with reference to the division information. Accordingly, it is possible to encode signals having different characteristics at an optimum bitrate by classifying the signals into one or more classes according to the characteristics of the signals and encoding each of the signals using an encoding unit that can best serve the class where a corresponding signal belongs. In addition, it is possible to efficiently encode various signals including audio and speech signals. | 11-12-2009 |
20090281814 | METHOD AND AN APPARATUS FOR DECODING AN AUDIO SIGNAL - A method for processing an audio signal, comprising: receiving a downmix signal, an object information, and a mix information; generating a downmix processing information using the object information and the mix information; processing the downmix signal using the downmix processing information; and, generating a multi-channel information using the object information and the mix information, wherein the number of channel of the downmix signal is equal to the number of channel of the processed downmix signal is disclosed. | 11-12-2009 |
20090287494 | Apparatus for Processing Media Signal and Method Thereof - The present invention relates to a method of processing a media signal and apparatus therefor. A media signal decoding method according to the present invention includes detecting a channel having a valid value of the multi-channels to be generated and generating the detected channel having the valid value from the downmix signal and the spatial information signal. Accordingly, the present invention is able to reduce a decoding operation quantity by detecting which one of the channels to be generated from a transferred media signal is set to a virtual value and omitting decoding for the generation of the channel set to the virtual value. | 11-19-2009 |
20090290633 | Method of Apparatus for Processing a Signal - The present invention relates to a method and apparatus for processing a signal. An object of the present invention devised to solve the problem lies on a method and apparatus for processing a signal, which allows a signal having optimized signal transmission efficiency to be transmitted/received. According to an aspect of the present invention, there is provided a method for processing a signal, the method including receiving a broadcasting signal including audio data coded using a pilot reference value and a pilot difference value, demodulating the broadcasting signal in consideration of a scattered pilot which varies over time and a continual pilot which is fixed over time in a frame of the received broadcasting signal and decoding the demodulated signal to obtain a broadcasting transmission stream, demultiplexing the broadcasting transmission stream to obtain coded audio data in an Internet protocol (IP) packet and audio data coding identification information, decoding data according to a data coding scheme indicated by the audio data coding identification information, wherein the data coding scheme includes at least a pilot coding scheme, the pilot coding scheme decodes the data using the pilot reference value corresponding to a plurality of data and the pilot difference value, and the pilot difference value is generated using the data and the pilot reference value. | 11-26-2009 |
20090325524 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A signal processing apparatus and method thereof are disclosed. The present invention includes receiving a low frequency downmix signal including a multi channel signal, phase shift information and spatial information corresponding to parameter band of the low frequency downmix signal, generating the multi channel signal by applying the spatial information based on the parameter band to a whole frequency downmix signal, generating estimated phase shift information of a parameter band by using the phase shift information, and generating a phase shift multi channel signal by shifting a phase of the multi channel signal based on the phase shift information and the estimated phase shift information. | 12-31-2009 |
20100010818 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal, an object information, and a mix information; generating a downmix processing information using the object information and the mix information; processing the downmix signal using the downmix processing information; and, generating a multi-channel information using the object information and the mix information, wherein the number of channel of the downmix signal is equal to the number of channel of the processed downmix signal is disclosed. | 01-14-2010 |
20100010819 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal in time domain; if the downmix signal corresponds to a mono signal, bypassing the downmix signal; if the number of channel of the downmix signal corresponds to at least two, decomposing the downmix signal into a subband signal, and processing the subband signal using a downmix processing information, wherein the downmix processing information is estimated based on an object information and a mix information is disclosed. | 01-14-2010 |
20100010820 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal and a downmix processing information; and, processing the downmix signal using a downmix processing information, comprising: de-correlating the downmix signal; and, mixing the downmix signal and the de-correlated signal in order to output the processed downmix signal, wherein the downmix processing information is estimated based on an object information and a mix information is disclosed. | 01-14-2010 |
20100010821 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal, a first multi-channel information, and an object information; processing the downmix signal using the object information and a mix information; and, transmitting one of the first multi-channel information and a second multi-channel information according to the mix information, wherein the second channel information is generated using the object information and the mix information is disclosed. | 01-14-2010 |
20100014680 | Method and an Apparatus for Decoding an Audio Signal - A method for processing an audio signal, comprising: receiving a downmix signal, an object information, and a mix information; generating a multi-channel information including at least one gain modification factor using the object information and the mix information, wherein the gain modification factor corresponds to a time-subband-variant factor for controlling gain of the downmix signal is disclosed. | 01-21-2010 |
20100017002 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof are disclosed. The method comprises receiving a downmix signal, object information indicating attribute of the object and including object number information, preset information to render the downmix signal, external preset information being inputted from external, and applied object number information indicating the number of object being applied the external preset information; determining whether the applied object number information is identical to the object number information; and rendering the downmix signal by using the external preset information, if the applied object number information is identical to the object number information, wherein the external preset rendering parameter renders the object being included in the downmix signal and the external preset metadata indicates attribute of the external preset rendering parameter. | 01-21-2010 |
20100017003 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof are disclosed. The apparatus comprises an information receiving unit receiving a downmix signal including and a plurality of preset informations; an external preset information receiving unit receiving a plurality of external preset informations being inputted from external; an external preset applying-determining unit determining whether the plurality of the external preset informations applies to the downmix signal; an external preset information selecting unit selecting one external preset information, if the plurality of external preset informations is selected; and a rendering unit controlling the object by applying the external preset information to the all data regions. | 01-21-2010 |
20100027811 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for controlling a volume of an audio signal and method thereof are disclosed, by which a volume of an input signal can be controlled by using a non-linear gain curve and a target volume of the input signal. The present invention includes receiving an input signal and reference information controlling a volume of the input signal; and adjusting a volume of the input signal with the reference information, wherein the reference information comprises at least one of metadata indicating characteristics of the input signal, output environment information indicating characteristics of an environment in proximity to the apparatus and stored reference information being transmitted from memory. | 02-04-2010 |
20100027812 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for controlling a volume of an audio signal and method thereof are disclosed, by which a volume of an input signal can be controlled by using a non-linear gain curve and a target volume of the input signal. The present invention includes storing a non-linear gain curve indicating relations between volumes of an input signal and an output signal; receiving an input signal and target volume information; determining a first gain by using the volume of the input signal and the target volume information; determining a second gain from one of a) the volume of the input signal and the target volume information or b) the first gain, by using the non-linear gain curve; and adjusting the volume of the input signal by applying the second gain to the input signal, wherein the non-linear gain curve is generated by using non-linearity information. A volume of an input signal of this invention is controlled using a non-linear gain curve indicating a relation between a volume of an input signal and a volume of an output signal. Therefore, the present invention is able to reduce or expand a dynamic range of an output volume. | 02-04-2010 |
20100034394 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method for processing an audio signal is disclosed. The present invention includes obtaining a stereophonic audio signal including a speech component signal and other component signals, obtaining gain values for each channel of the audio signal, determining whether the audio signal is an inverse-phase mono signal including left and right channel whose phase is inverted, inverting a phase of the obtained gain value corresponding to the one channel of the audio signal when the audio signal is an inverse-phase mono signal, modifying the speech component signal based on the inverted phase of the gain value, and generating a modified audio signal including the modified speech component signal, wherein the modified audio signal is in-phase mono signal. Accordingly, a volume of a speech signal of an inverse-phase audio signal and method thereof, in which a sign of a final gain value corresponding to one channel of the audio signal is changed or a value of the final gain corresponding to one channel of the audio signal is adjusted through a process for determining whether an input signal is an inverse-phase mono signal including left and right channel whose phase is inverted. | 02-11-2010 |
20100040135 | APPARATUS FOR PROCESSING MIX SIGNAL AND METHOD THEREOF - A method and apparatus for processing a signal, and more particularly, an apparatus for processing a signal and method thereof are disclosed, by which a mix signal such as an audio signal and a video signal can be encoded or decoded. The present invention includes extracting a mix signal including at least one source signal from a mix signal bitstream, extracting side information from a side information bitstream, obtaining a user-mix parameter, and generating a remix signal using the mix signal, the side information, and the user-mix parameter, wherein the side information bitstream is divided into a first header area and a data area and wherein the data area comprises at least one frame data area and at least one second header area. | 02-18-2010 |
20100046758 | METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal and an extension signal included in the ancillary signal from a received bit stream, reading length information of the extension signal from an extension area of the ancillary signal, and generating the audio signal using the ancillary signal. Accordingly, in case of processing the audio signal by the present invention, it is able to reduce a corresponding load of operation to enable efficient processing and enhance a sound quality. | 02-25-2010 |
20100046759 | METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal and an extension signal included in the ancillary signal from a received bit stream, checking a level of the bit stream, selectively decoding the extension signal according to the level of the bit stream, and generating the audio signal using the ancillary signal. Accordingly, in case of processing the audio signal by the present invention, it is able to reduce a corresponding load of operation to enable efficient processing and enhance a sound quality. | 02-25-2010 |
20100054485 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method for processing an audio signal is disclosed. The present invention includes obtaining a plural-channel audio signal including a speech component signal and other component signals, obtaining gain of the audio signal, obtaining modification strength parameter determining the strength of the modification of the speech component signal, modifying the gain based on the modification strength parameter, and modifying the speech component signal based on the modified gain. | 03-04-2010 |
20100061566 | APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF - An apparatus for processing an audio signal and method thereof are disclosed, by which a local dynamic range of an audio signal can be adaptively normalized as well as a maximum dynamic range of the audio signal. The present invention includes receiving a signal, by an audio processing apparatus; computing a long-term power and a short-term power by estimating power of the signal; generating a slow gain based on the long-term power; generating a fast gain based on the short-term power; obtaining a final gain by combining the slow gain and the fast gain; and, modifying the signal using the final gain. | 03-11-2010 |
20100070284 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - An apparatus for processing an encoded signal and method thereof are disclosed, by which an audio signal can be compressed and reconstructed in higher efficiency. | 03-18-2010 |
20100085117 | APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF - An apparatus for processing an audio signal and method thereof are disclosed, by which a local dynamic range of an audio signal can be adaptively normalized as well as a maximum dynamic range of the audio signal. The present invention includes receiving, by an audio processing apparatus, a signal, and feedback information estimated based on a normalizing gain; generating a noise estimation based on the signal; computing a gain filter for noise canceling, based on the noise estimation and the signal; and, obtaining a restricted gain filter by applying the feedback information to the gain filter. | 04-08-2010 |
20100087938 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method and apparatus for processing an audio signal is disclosed. Herein, the method includes receiving a downmix information having at least one independent object and a background object downmixed therein; receiving an object information and a mix information; and extracting at least one independent object from the downmix information using the object information and the enhanced object information. | 04-08-2010 |
20100092008 | Apparatus For Processing A Mix Signal and Method Thereof - A method and apparatus for processing a signal, and more particularly, to an apparatus for processing a mix signal and method thereof are disclosed, by which a mix signal such as an audio signal and a video signal can be encoded/decoded. The present invention includes receiving at least one of a mix signal and source signals and generating a unified side information corresponding to a unified source signal using the mix signal and the at least one of the source signals, wherein the unified source signal is generated by grouping at least one source signal. | 04-15-2010 |
20100094443 | APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF - An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes an apparatus for a processing a signal, the apparatus comprising: a wire/wireless communication unit receiving object information and an audio signal which comprises multiple object groups from a multipoint control unit; a signal coding unit obtaining object group information by decoding the object information; a display unit displaying the object group information; and, an input unit receiving selection command designating at least one object group as non-recipient terminal among multiple object groups, based on the object group information; wherein, when the selection command is received, the signal coding unit generates destination information using the selection command, wherein, when the destination information is generated, the wire/wireless communication unit transmits the destination information to the multiple control unit, wherein the multiple object groups comprise first object group of first terminal and second object group of second terminal. | 04-15-2010 |
20100106270 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention comprises receiving downmix signal including object signals, transforming the downmix signal per frequency band, determining a direction of an object signal from the transformed downmix signal, and determining blind information by estimating a level of the object signal corresponding to the direction. Accordingly, the present invention generates blind information in case of using an encoder incapable of generating object information, thereby enabling a gain and panning of object to be controlled using the blind information. | 04-29-2010 |
20100106271 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method and apparatus for processing an audio signal is disclosed. Herein, the method includes receiving a downmix information having an independent object and a background object downmixed therein; generating a first multi-channel information for controlling the independent object; and generating a second multi-channel information for controlling the background object using the downmix information and the first multi-channel information. | 04-29-2010 |
20100111319 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method and apparatus for processing an audio signal is disclosed. Herein, the method includes receiving a downmix information having at least two independent objects and a background object downmixed therein; separating the downmix information into a first independent object and a temporary background object using a first enhanced object information; and extracting a second independent object from the temporary background object using a second enhanced object information. | 05-06-2010 |
20100119073 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - Disclosed is a method of processing an audio signal, including obtaining ratio information between a main signal and a sub-signal and gain range information of an object and modifying parameter information including at least one of an object parameter and a control parameter based on the ratio information and the gain range information. Disclosed is a method of processing an audio signal, including generating ratio information using object information, generating gain range information of an object using the ratio information, and modifying parameter information including at least one of an object parameter and a control parameter based on the gain range information. | 05-13-2010 |
20100121470 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - Disclosed is a method of processing an audio signal, including obtaining ratio information between a main signal and a sub-signal and gain range information of an object and modifying parameter information including at least one of an object parameter and a control parameter based on the ratio information and the gain range information. Disclosed is a method of processing an audio signal, including generating ratio information using object information, generating gain range information of an object using the ratio information, and modifying parameter information including at least one of an object parameter and a control parameter based on the gain range information. | 05-13-2010 |
20100135299 | Method and Apparatus for Processing an Audio Signal - A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal, an extension signal included in the ancillary signal, and header identification information indicating whether a header is included in the ancillary signal from a received bit stream, reading length information of the extension signal from the header if the header is included in the ancillary signal according to the header identification information, skipping decoding of the extension signal or not using a result of the decoding based on the length information, and generating the audio signal using the ancillary signal. Accordingly, in case of processing the audio signal by the present invention, it is able to reduce a corresponding load of operation to enable efficient processing and enhance a sound quality. | 06-03-2010 |
20100142731 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal, comprising: receiving a downmix signal, a residual signal and object information; extracting at least one of a background-object signal and a foreground-object signal from the downmix signal using the residual signal; receiving mix information comprising gain control information for the background-object signal; generating a downmix processing information based on the object information and the mix information; and, generating a processed downmix signal comprising a modified background-object signal to which an adjusted gain corresponding to the gain control information is applied, by applying the downmix processing information to the at least one of the background-object signal and the foreground-object signal is disclosed. | 06-10-2010 |
20100145487 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention includes receiving downmix information of at least one downmixed object signal, obtaining side information including object information, and mix information, generating plural channel information based on the side information and the mix information, and generating an output channel signal from the downmix information using the plural channel information, wherein the object information includes at least one of level information of the object signal, correlation information of the object signal, gain information of the object signal and supplementary information thereof. | 06-10-2010 |
20100145711 | METHOD AND AN APPARATUS FOR DECODING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention includes receiving downmix information, object information and mix information, generating and transferring multi-channel information using at least one of the downmix information, the object information and the mix information, and selectively generating and transferring either first gain information or extra multi-channel information including second gain information in accordance with a decoding mode using at least one of the object information and the mix information. | 06-10-2010 |
20100189266 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention comprises receiving a downmix signal, object information and preset information, generating downmix processing information using the object information and the preset information, processing the downmix signal using the downmix processing information, and generating multi-channel information using the object information and the preset information, wherein the preset information is extracted from a bitstream. Accordingly, a gain and panning of an object can be easily controlled without user's setting for each object using preset information set in advance. And, a gain and panning of an object can be controlled using preset information modified based on a selection made by a user. | 07-29-2010 |
20100189281 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof, comprising receiving a downmix signal comprising at least one normal object signal, and bitstream including object information determined when the downmix signal is generated; extracting extension type identifier indicating whether the downmix signal further comprises a multi-channel object signal, from extension part of the bitstream; when the extension type identifier indicates that the downmix signal further comprise multi-channel object signal, extracting first spatial information from the bitstream; and, transmitting at least one of the first spatial information and the second spatial information; wherein the first spatial information is determined when a multi-channel source signal are downmixed into the multi-channel object signal, wherein the second information is generated using the object information and mix information, are disclosed. | 07-29-2010 |
20100191354 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention includes receiving the audio signal including object information, obtaining correlation information indicating whether an object is grouped with other object from the received audio signal, and obtaining one meta information common to grouped objects based on the correlation information. | 07-29-2010 |
20100198602 | METHOD AND AN APPARATUS FOR DECODING AN AUDIO SIGNAL - The present invention relates to an apparatus for processing an audio signal and method thereof. The present invention includes receiving a downmix signal comprising plural objects, and a bitstream including object information and downmix gain information, obtaining level guide flag information for all frames indicating whether level guide information is present in the bitstream, obtaining the level guide information representing a limitation of object level applied to at least one object of the plural objects, from the bitstream, based on the level guide flag information, receiving mix information, generating modified mix information by modifying the mix information based on the level guide information and the downmix gain information, and generating at least one of downmix processing information and multi-channel information based on the modified mix information and the object information, wherein the mix information is estimated using object level for at least one object of the plural objects, and wherein the object information and the downmix gain information are determined when the downmix signal is generated. | 08-05-2010 |
20100199204 | METHOD AND AN APPARATUS FOR DECODING AN AUDIO SIGNAL - The present invention relates to an apparatus for processing an audio signal and method thereof. The present invention includes a receiving unit receiving a downmix signal comprising plural objects, a bitstream including object information and level guide information, and a graphical user interface receiving a user input for controlling level for at least one object among the plural objects, and displaying a representation corresponding to the level guide information, wherein the object information is determined when the downmix signal is generated, the level guide information indicates rendering limit for at least one object of the plural objects, the representation includes a non-recommended rendering region representing the rendering limit and a recommended rendering region representing rendering range except for the rendering limit. | 08-05-2010 |
20100202620 | METHOD AND AN APPARATUS FOR DECODING AN AUDIO SIGNAL - The present invention relates to an apparatus for processing an audio signal and method thereof. The present invention includes receiving a downmix signal comprising at least one object signal, and a bitstream including object information and downmix channel level difference, when the downmix signal comprises at least two object signals, extracting a relation identifier from the bitstream, the relation identifier indicating whether two object signals among the at least two object signals are related to each other, identifying whether the two object signals correspond to stereo object signals, using the downmix channel level difference and the relation identifier, generating mix information including a first element and a second element using a single user input, and generating at least one of downmix processing information and multi channel information based on the object information and the mix information, wherein the stereo object signals includes a left object signal and a right object signal, the first element is applied to the left object signal of the stereo object signal to output a first channel, the second element is applied to the right object signal of the stereo object signal to output a second channel, and the first element is negatively related to the second element. | 08-12-2010 |
20100241438 | METHOD AND AN APPARATUS OF DECODING AN AUDIO SIGNAL - A method of decoding an audio signal is disclosed, The present invention includes the steps of receiving the audio signal having a plurality of channel signals including an ambient component signal and a source component signal, extracting the ambient component signal and the source component signal of each of the channels based on correlation between the channel signals, modifying the ambient component signal using surround effect information, and generating the audio signal including a plurality of channels using the modified ambient component signal and the source component signal. Accordingly, in an apparatus for decoding an audio signal and method thereof according to the present invention, an ambient component signal is extracted and modified based on correlation and the modified ambient and source component signals are outputted using different signal output units, respectively. Therefore, the present invention enhances a stereo effect of the audio signal. And, a signal output unit for outputting a ambient component signal is arranged to have an output direction different from that of another signal output unit for outputting a source component signal, whereby a listener can be provided with an audio signal of which ambient sound is enhanced. | 09-23-2010 |
20100250259 | METHOD AND AN APPARATUS OF DECODING AN AUDIO SIGNAL - The present invention includes an audio signal receiving unit receiving the audio signal having a plurality of channel signals including an ambient component signal and a source component signal; an ambient component signal extracting unit extracting the ambient component signal of each of the channels based on correlation between the channel signals; an ambient component signal modifying unit modifying the ambient component signal using surround effect information; a source component signal extracting unit extracting the source component signal of each of the channels based on the correlation between the channel signals; a first signal output unit outputting the modified ambient component signal and the source component signal; and a second signal output unit outputting the audio signal or the source component signal. Accordingly, in an apparatus for decoding an audio signal and method thereof according to the present invention, an ambient component signal is extracted and modified based on correlation and the modified ambient and source component signals are outputted using different signal output units, respectively. Therefore, the present invention enhances a stereo effect of the audio signal. And, a signal output unit for outputting an ambient component signal is arranged to have an output direction different from that of another signal output unit for outputting a source component signal, whereby a listener can be provided with an audio signal of which ambient sound is enhanced. | 09-30-2010 |
20100274557 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - A method of processing a signal is disclosed. The present invention includes receiving extension information and at least one downmix signal of a first downmix signal decoded by a audio coding scheme and a second downmix signal decoded by a speech coding scheme; determining an extension base signal corresponding to a partial region of the downmix signal based on the extension information; and generating an extended downmix signal having a bandwidth extended by reconstructing a high frequency region signal using the extension base signal and the extension information. According to a signal processing method and apparatus of the present invention, signal corresponding to a partial frequency region of the downmix signal is used as the extension base signal. Therefore, the high frequency region of the downmix signal is reconstructed by using the extension base signal having variable bandwidth. | 10-28-2010 |
20100284549 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention includes receiving a downmix signal including at least one object signal and object information extracted when the downmix signal is generated, receiving mix information for controlling the object signal, generating one of downmix processing information and multi-channel information using the object information and the mix information according to an output mode, and if the downmix processing information is generated, generating an output signal by applying the downmix processing information to the downmix signal, wherein the downmix signal and the output signal correspond to a mono signal and wherein the multi-channel information corresponds to information for upmixing the downmix signal into a plurality of channel signals. | 11-11-2010 |
20100284550 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - An apparatus for processing a signal and method thereof are disclosed. The present invention includes receiving a downmix signal generated from a plural-channel signal, mix information and phase shift information on the plural-channel signal, upmixing the downmix signal into the plural-channel signal by applying the mix information to the downmix signal, and generating an original plural-channel signal by shifting a phase of at least one channel of the plural-channel signal based on the phase shift information. According to the present invention compensate a reconstructed original plural-channel signal using compensation information (phase shift information), thereby compensating a phase or a gain lost in the plural-channel signal reconstructed by upmixing using mix information. | 11-11-2010 |
20100284551 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention includes receiving a downmix signal including at least one object signal and object information extracted when the downmix signal is generated, receiving mix information including mode selection information, the mix information for controlling the object signal, bypassing the downmix signal or extracting a background object and at least one independent object from the downmix signal, based on the mode selection information, and if the downmix signal is bypassed, generating multi-channel information using the object information and the mix information, indicating which one of modes including a normal mode, a mode for controlling the background object, and a mode for controlling the at least one independent object. | 11-11-2010 |
20100286804 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - A method of processing a signal is disclosed, which includes receiving a downmix signal, object information and rendering information; obtaining downmix gain flag information indicating whether a downmix gain is included in the object information; and generating downmix processing information using the object information and the rendering information based on the downmix gain flag information, wherein the object information includes modified object level information or object level information, wherein the modified object level information is determined using a level of a modified object generated by applying the downmix gain to an object, and wherein the object level information is determined using a level of the object. Accordingly, in an apparatus for processing a signal and method thereof according to the present invention, the signal is decoded using modified object level information based on downmix gain flag information. Therefore, the present invention enables to select an efficient signal processing method according to an environment. | 11-11-2010 |
20100296656 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention includes receiving a downmix signal including at least one object signal, and object information extracted when the downmix signal is generated, receiving mix information including mode selection information, the mix information for controlling the object signal, and generating a stereo output signal using the downmix signal or extracting a background object and at least one independent object from the downmix signal, based on the mode selection information, wherein the downmix signal corresponds to a mono signal, wherein the stereo output signal corresponds to a time-domain signal including a signal generated from decorrelating the downmix signal, and wherein the mode selection information includes information indicating which one of modes including a normal mode, a mode for controlling the background object, and a mode for controlling the at least one independent object. | 11-25-2010 |
20100303243 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - A method of processing a signal is disclosed, which includes receiving a downmix signal, object information and rendering information; and generating downmix processing information using the object information and the rendering information, the object information including modified object level information, wherein the modified object level information is determined using a level of a modified object generated by applying a downmix gain to an object. Accordingly, in an apparatus for processing a signal and method thereof according to the present invention, the signal is decoded using object information including modified object level information. Therefore, since a downmix gain is not transmitted, the present invention is able to reduce a used bit for object information and decode a signal using less information. | 12-02-2010 |
20100305956 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - A method and apparatus for processing a signal are discussed. According to an embodiment, the method includes receiving extension information and a downmix signal decoded by either an audio coding scheme or a speech coding scheme, the downmix signal having a bandwidth of a low frequency signal; generating an upmixing signal from the downmix signal by using channel extension; determining an extension base signal corresponding to partial band of the upmixing signal based on the extension information; and generating an extended upmixing signal by applying the extension information to the extension base signal, the extended upmixing signal having a bandwidth extended by reconstructing a high frequency signal. | 12-02-2010 |
20100310079 | Method for Encoding and Decoding Multi-Channel Audio Signal and Apparatus Thereof - Methods and apparatuses for encoding and decoding a multi-channel audio signal are provided. In the encoding method, spatial information is calculated based on a multi-channel audio signal and a down-mix signal, and a compensation parameter that compensates for the down-mix signal is calculated based on the multi-channel audio signal and the down-mix signal. Thereafter, a bitstream is generated by encoding the spatial information, the compensation parameter, and the down-mix signal and combining the results of the encoding. Therefore, it is possible to prevent deterioration of the quality of sound regarding a multi-channel audio signal by compensating for the multi-channel audio signal using a compensation parameter that compensates for a down-mix signal. | 12-09-2010 |
20100312551 | METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL - Disclosed is a method of processing a signal, which includes receiving at least one of a first signal and a second signal, receiving mode information, and coding the at least one of the first signal and the second signal using at least one of a first coding scheme and a second coding scheme according to the mode information, wherein the mode information is information for indicating that a prescribed mode corresponds to which one of at least three modes. | 12-09-2010 |
20100316230 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal is disclosed. The present invention includes receiving a downmix signal including at least one object signal and object information extracted when the downmix signal is generated, receiving mix information for controlling the object signal, generating one of downmix processing information and multi-channel information using the object information and the mix information according to an output mode, and if the downmix processing information is generated, generating an output signal by applying the downmix processing information to the downmix signal, wherein the downmix signal corresponds to a mono signal, wherein the output signal corresponds to a stereo signal generated by applying a decorrelator to the downmix signal, and wherein the multi-channel information corresponds to information for upmixing the downmix signal into a multi-channel signal. | 12-16-2010 |
20100324916 | REMOVING TIME DELAYS IN SIGNAL PATHS - The disclosed embodiments include systems, methods, apparatuses, and computer-readable mediums for compensating one or more signals and/or one or more parameters for time delays in one or more signal processing paths. | 12-23-2010 |
20100329467 | REMOVING TIME DELAYS IN SIGNAL PATHS - The disclosed embodiments include systems, methods, apparatuses, and computer-readable mediums for compensating one or more signals and/or one or more parameters for time delays in one or more signal processing paths. | 12-30-2010 |
20110022397 | SLOT POSITION CODING OF TTT SYNTAX OF SPATIAL AUDIO CODING APPLICATION - Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., frames) that contain ordered sets of slots for which parameters can be applied. The data structures can be fixed or variable. The data structure can include position information that can be used by a decoder to identify the correct slot for which a given parameter set is applied. The slot position information can be encoded with a fixed number of bits or a variable number of bits based on the data structure type. | 01-27-2011 |
20110022401 | SLOT POSITION CODING OF OTT SYNTAX OF SPATIAL AUDIO CODING APPLICATION - Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., frames) that contain ordered sets of slots for which parameters can be applied. The data structures can be fixed or variable. The data structure can include position information that can be used by a decoder to identify the correct slot for which a given parameter set is applied. The slot position information can be encoded with either a fixed number of bits or a variable number of bits based on the data structure type. | 01-27-2011 |
20110040567 | METHOD AND AN APPARATUS FOR DECODING AN AUDIO SIGNAL - A method for decoding an audio signal comprises receiving a combined downmix, a combined object information, and a mix information, the combined downmix being generating using at least two downmix signals, the combined object information being made by combination of at least two sets of object information, generating a downmix processing information using the combined object information and the mix information, and processing the combined downmix using the downmix processing information. | 02-17-2011 |
20110044458 | SLOT POSITION CODING OF RESIDUAL SIGNALS OF SPATIAL AUDIO CODING APPLICATION - Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., frames) that contain ordered sets of slots for which parameters can be applied. The data structures can be fixed or variable. The data structure can include position information that can be used by a decoder to identify the correct slot for which a given parameter set is applied. The slot position information can be encoded with either a fixed number of bits or a variable number of bits based on the data structure type. | 02-24-2011 |
20110044459 | SLOT POSITION CODING OF SYNTAX OF SPATIAL AUDIO APPLICATION - Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., frames) that contain ordered sets of slots for which parameters can be applied. The data structures can be fixed or variable. The data structure can include position information that can be used by a decoder to identify the correct slot for which a given parameter set is applied. The slot position information can be encoded with either a fixed number of bits or a variable number of bits based on the data structure type. | 02-24-2011 |
20110057818 | Apparatus and Method for Encoding and Decoding Signal - Encoding and decoding apparatuses and encoding and decoding methods are provided. The decoding method includes extracting a plurality of encoded signals from an input bitstream, determining which of a plurality of decoding methods is to be used to decode each of the encoded signals, decoding the encoded signals using the determined decoding methods, and synthesizing the decoded signals. Accordingly, it is possible to encode signals having different characteristics at an optimum bitrate by classifying the signals into one or more classes according to the characteristics of the signals and encoding each of the signals using an encoding unit that can best serve the class where a corresponding signal belongs. In addition, it is possible to efficiently encode various signals including audio and speech signals. | 03-10-2011 |
20110075855 | METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNALS - A method for processing an audio signal is disclosed. The method for processing an audio signal includes frequency-transforming an audio signal to generate a frequency-spectrum, deciding a weighting per band corresponding to energy per band using the frequency spectrum, receiving a masking threshold based on a psychoacoustic model, applying the weighting to the masking threshold to generate a modified masking threshold, and quantizing the audio signal using the modified masking threshold. | 03-31-2011 |
20110085669 | Method for Encoding and Decoding Multi-Channel Audio Signal and Apparatus Thereof - Methods and apparatuses for encoding and decoding a multi-channel audio signal are provided. In the encoding method, spatial information is calculated based on a multi-channel audio signal and a down-mix signal, and a compensation parameter that compensates for the down-mix signal is calculated based on the multi-channel audio signal and the down-mix signal. Thereafter, a bitstream is generated by encoding the spatial information, the compensation parameter, and the down-mix signal and combining the results of the encoding. Therefore, it is possible to prevent deterioration of the quality of sound regarding a multi-channel audio signal by compensating for the multi-channel audio signal using a compensation parameter that compensates for a down-mix signal. | 04-14-2011 |
20110085670 | TIME SLOT POSITION CODING OF MULTIPLE FRAME TYPES - Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., frames) that contain ordered sets of slots for which parameters can be applied. The data structures can be fixed or variable. The data structure can include position information that can be used by a decoder to identify the correct slot for which a given parameter set is applied. The slot position information can be encoded with either a fixed number of bits or a variable number of bits based on the data structure type. | 04-14-2011 |
20110153335 | METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNALS - An audio signal processing method is disclosed. The audio signal processing method includes receiving a residual and long term prediction information, performing inverse frequency mapping with respect to the residual to generate a synthesized residual, and performing long term synthesis based on the synthesized residual and the long term prediction information to generate a synthesized audio signal of a current frame, wherein the long term prediction information comprises a final prediction gain and a final pitch lag, the final pitch lag has a range starting with 0, and the long term synthesis is performed based on a synthesized audio signal of a frame comprising a preceding frame. | 06-23-2011 |
20110178808 | Method and Apparatus for Decoding an Audio Signal - An apparatus for decoding an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and spatial information, identifying a type of modified spatial information, generating the modified spatial information using the spatial information, and decoding the audio signal using the modified spatial information, wherein the type of the modified spatial information includes at least one of partial spatial information, combined spatial information and expanded spatial information. Accordingly, an audio signal can be decoded into a configuration different from a configuration decided by an encoding apparatus. Even if the number of speakers is smaller or greater than that of multi-channels before execution of downmixing, it is able to generate output channels having the number equal to that of the speakers from a downmix audio signal. | 07-21-2011 |
20110182431 | Method and Apparatus for Decoding an Audio Signal - An apparatus for decoding an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and spatial information, identifying a type of modified spatial information, generating the modified spatial information using the spatial information, and decoding the audio signal using the modified spatial information, wherein the type of the modified spatial information includes at least one of partial spatial information, combined spatial information and expanded spatial information. Accordingly, an audio signal can be decoded into a configuration different from a configuration decided by an encoding apparatus. Even if the number of speakers is smaller or greater than that of multi-channels before execution of downmixing, it is able to generate output channels having the number equal to that of the speakers from a downmix audio signal. | 07-28-2011 |
20110196687 | Method and Apparatus for Decoding an Audio Signal - An apparatus for decoding an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and spatial information, identifying a type of modified spatial information, generating the modified spatial information using the spatial information, and decoding the audio signal using the modified spatial information, wherein the type of the modified spatial information includes at least one of partial spatial information, combined spatial information and expanded spatial information. Accordingly, an audio signal can be decoded into a configuration different from a configuration decided by an encoding apparatus. Even if the number of speakers is smaller or greater than that of multi-channels before execution of downmixing, it is able to generate output channels having the number equal to that of the speakers from a downmix audio signal. | 08-11-2011 |
20110246208 | Method and Apparatus for Decoding an Audio Signal - An apparatus for decoding an audio signal and method thereof are disclosed. The present invention includes receiving the audio signal and spatial information, identifying a type of modified spatial information, generating the modified spatial information using the spatial information, and decoding the audio signal using the modified spatial information, wherein the type of the modified spatial information includes at least one of partial spatial information, combined spatial information and expanded spatial information. Accordingly, an audio signal can be decoded into a configuration different from a configuration decided by an encoding apparatus. Even if the number of speakers is smaller or greater than that of multi-channels before execution of downmixing, it is able to generate output channels having the number equal to that of the speakers from a downmix audio signal. | 10-06-2011 |
20130281215 | ONLINE GAME EXPERIENCE USING MULTIPLE DEVICES - Technologies and implementations for providing an online game experience using multiple devices are generally disclosed. | 10-24-2013 |
20140086225 | SCHEMES FOR PROVIDING WIRELESS COMMUNICATION - Technologies are generally described for providing wireless communications. In some examples, a method performed under control of a mobile operating server may include determining whether there is an authenticated wireless access point around a mobile device, if there is no authenticated wireless access point, determining whether there is a non-authenticated wireless access point whose capacity is over a predetermined value around the mobile device and if there is a non-authenticated wireless access point whose capacity is over the predetermined value, instructing the mobile device to connect to a wireless local area network provided by the non-authenticated wireless access point. | 03-27-2014 |
20140105422 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal, the method including receiving a downmix signal and a first information, the downmix signal including at least one object, the first information including object information indicating an attribute of the at least one object; receiving a second information, the second information including external preset information and applied object number information, the external preset information being an external input and including an external preset rendering parameter and external preset metadata, the applied object number information indicating a number of objects to which the external preset information is applied; generating downmix processing information controlling panning or gain of the downmix signal by using the object information and the external preset information based on the applied object number information; and modifying the downmix signal by using the downmix processing information. | 04-17-2014 |
20140105423 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof, the method including receiving a downmix signal including at least one normal object signal, and a bitstream including object information determined when the downmix signal is generated; extracting an extension type identifier indicating whether the downmix signal further includes a multi-channel object signal, from an extension part of the bitstream; extracting spatial information from the bitstream when the extension type identifier indicates that the downmix signal further includes the multi-channel object signal; and transmitting spatial information when mode information indicates that the least one normal object signal is to be suppressed. The spatial information is determined when a multi-channel source signal is downmixed into the multi-channel object signal. The mix information is to control an object position or an object level of the at least one normal object signal. | 04-17-2014 |
20140105424 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for processing an audio signal and method thereof, the method including receiving a downmix signal including at least one normal object signal, and a bitstream including object information determined when the downmix signal is generated; extracting, from an extension part of the bitstream, an extension type identifier indicating whether the downmix signal further includes a multi-channel object signal; generating spatial information using the object information and mix information when mode information indicates that the multi-channel object signal is to be suppressed and the extension type identifier indicates that the downmix signal further includes the multi-channel object signal; and transmitting spatial information. The mix information is to control an object position or an object level of the at least one normal object signal. | 04-17-2014 |
20140143334 | CONDITIONAL DISCLOSURE OF A RESPONSE TO CONTENT POSTED IN A SOCIAL NETWORK - Technologies are generally described for a social networking service (SNS). In some examples, a method performed under control of a server may include receiving a user input associated with the user responding to content posted in an online forum, determining whether a threshold condition set by the user is satisfied for the user's response to be disclosed with regard to a particular piece of content posted in the online forum, and disclosing the user's response to the particular piece of content posted in the online forum when the threshold condition is determined to be satisfied. | 05-22-2014 |
20140161261 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal, the method including receiving a downmix signal including at least one object signal, and object information extracted when the downmix signal is generated, the at least one object signal including a background object and at least one independent object; receiving mix information including mode selection information, the mix information for controlling the at least object signal; receiving enhanced object information corresponding to a residual signal generated when the at least one object signal is downmixed to the downmix signal; generating downmix processing information by using the object information and the mix information; generating an output signal by applying the downmix processed information to the downmix signal; and extracting the background object and the at least one independent object from the downmix signal, by using the enhanced object information. | 06-12-2014 |
20140161285 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal, and which includes a receiving object information including object level information indicating a level of objects, object gain information and object correlation information; receiving preset presence information and preset number information; receiving preset information based on the preset presence information and the preset number information by an audio decoding apparatus, the preset information including preset metadata representing an attribute mode of the preset information, preset rendering data and preset type information indicating whether the preset rendering data is in a matrix type or not obtaining a preset matrix from the preset rendering data by the audio decoding apparatus, and generating a processed audio signal by controlling a gain or panning of the at least one object included in the audio signal based on the downmix processing information. | 06-12-2014 |
20140177848 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method for processing an audio signal at an audio decoder, the method including receiving a downmix signal, a residual signal, and object information; extracting a background-object signal and a foreground-object signal from the downmix signal using the residual signal and object information; receiving mix information including gain information for the background-object signal; generating a downmix processing information based on the object information and the mix information; and generating an output signal including a modified background-object signal and a modified foreground-object signal. The modified background-object signal is obtained by modifying a gain of the background-object signal using the mix information. The modified foreground-object signal is obtained by modifying a gain of the foreground-object signal using the downmix processing information. | 06-26-2014 |
20140214706 | SOCIAL NETWORKING-BASED PROFILING - In one example, a computer-readable medium stores computer-executable instructions that cause one or more processors to aggregate at least a subset of a listing of current employees into at least one of plural categories, scan online activity for one or more of the current employees to an online service to detect instances of predetermined indicia, and collect the detected instances of the predetermined indicia into a profile for a perspective employee. | 07-31-2014 |
20140214980 | SPOILER ALERT SCHEME - Technologies are generally described for a spoiler alert scheme. In some examples, a spoiler alert system may include an event determination unit configured to determine an event of interest to a user for which a spoiler alert is to be provided, a spoiler identification unit configured to identify one or more posts in an online forum that include spoiler information regarding the determined event of interest, and a spoiler control unit configured to hide the one or more identified posts from the online forum, as displayed to the user. | 07-31-2014 |
20140222439 | Apparatus and Method for Encoding/Decoding Signal - An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes skipping extension information included in an input bitstream, extracting a three-dimensional (3D) down-mix signal and spatial information from the input bitstream, removing 3D effects from the 3D down-mix signal by performing a 3D rendering operation on the 3D down-mix signal, and generating a multi-channel signal using a down-mix signal obtained by the removal and the spatial information. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment. | 08-07-2014 |
20140222440 | METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method for decoding an audio signal, receiving a downmix signal having at least one independent object and a background object downmixed therein receiving object information and enhanced object information, wherein the object information includes at least one of level information and correlation information between the independent object and the background object, wherein the enhanced object information includes a residual signal extracting the at least one independent object and the background object from the downmix signal using the object information and the enhanced object information receiving mix information from a user, the mix information being usable to control gain or panning of the independent object or the background object generating downmix processing information using at least one of the object information and enhanced object information processing at least one independent object and the background object using at least one of the downmix processing information and the mix information. | 08-07-2014 |
20140348113 | SCHEMES FOR PROVIDING WIRELESS COMMUNICATION - Technologies are generally described for providing wireless communications. In some examples, a method performed under control of a mobile operating server may include determining whether there is an authenticated wireless access point around a mobile device, if there is no authenticated wireless access point, determining whether there is a non-authenticated wireless access point whose capacity is over a predetermined value around the mobile device and if there is a non-authenticated wireless access point whose capacity is over the predetermined value, instructing the mobile device to connect to a wireless local area network provided by the non-authenticated wireless access point. | 11-27-2014 |
20150067885 | PRIVACY PROTECTION FOR A LIFE-LOG SYSTEM - Technologies are generally described for privacy protection for a life-log system. In some examples, a method performed under control of a life-log system may include receiving, from a user account, a request to change one or more real life-log data entries relating to a real event that are stored in a first part of a database; removing the one or more real life-log data entries relating to the real event from the first part of the database; and storing, in the first part of the database, one or more misleading life-log data entries relating to a false event corresponding to the real event. | 03-05-2015 |
20150088530 | Method and Apparatus for Decoding an Audio Signal - Method and apparatus for processing audio signals are provided. The method for decoding an audio signal includes extracting a downmix signal and spatial information from a received audio signal, generating surround converting information using the spatial information and rendering the downmix signal to generate a pseudo-surround signal in a previously set rendering domain, using the surround converting information. The apparatus for decoding an audio signal includes a demultiplexing part extracting a downmix signal and spatial information from a received audio signal, an information converting part generating surround converting information using the spatial information and a pseudo-surround generating part rendering the downmix signal to generate a pseudo-surround signal in a previous set rendering domain, using the surround converting information. | 03-26-2015 |