Patent application number | Description | Published |
20090063165 | SYSTEM AND METHOD FOR PROVIDING AMR-WB DTX SYNCHRONIZATION - A system and method for providing improved adaptive multi-rate wideband (AMR-WB) discontinuous transmission (DTX) synchronization. According to various embodiments, an indication on the start of the inactive speech period is signalled to the decoder via a voice activity detection (VAD) flag a predetermined number of frames before the DTX period will start, i.e., before the SID_FIRST frame is received. When the VAD flag indicates active speech, or when the VAD flag has been set to zero less than the predetermined number of frames ago, the received NO_DATA frame can be classified with a high degree of reliability as active speech, i.e., considered as transmitter, network or terminal-initiated signalling, and can be substituted by a SPEECH_LOST frame. When the VAD flag was set to zero eight frames ago or earlier, the NO_DATA frame is classified as DTX. | 03-05-2009 |
20090129601 | Controlling the Decoding of Binaural Audio Signals - A method for generating a parametrically encoded audio signal, the method comprising: inputting a multi-channel audio signal comprising a plurality of audio channels; generating at least one combined signal of the plurality of audio channels; and generating one or more corresponding sets of side information including channel configuration information for controlling audio source locations in a synthesis of a binaural audio signal. | 05-21-2009 |
20090154495 | SCALABLE ERROR DETECTION AND CROSS-SESSION TIMING SYNCHRONIZATION FOR PACKET-SWITCHED TRANSMISSION - A system and method for providing improved scalable error detection and cross-timing synchronization for packet-switched transmission. In one embodiment, checksum error detection is applied for the core layer and for enhancement layers of the scalable payload in such a way that dropping one or several enhancement layers from the payload does not change the value of the checksum. Only one checksum is transmitted, e.g., in the payload or in the header of the lower-layer protocol. The transmitter modifies the encoded bit stream in such a manner that the entity in the network deploying the scalable payload and removing layers from the packet does not need to recalculate the checksum placed in the payload or packet header, even when the payload size is changed. A prefix/tail bit field is added in the beginning/end of each enhancement layer to make the checksum check match with the common checksum. In another embodiment, the receiver may check the correctness of each received layer simultaneously and, if desired, utilize data only from correctly received layers. | 06-18-2009 |
20100280832 | Packet Generator - A packet generator for generating packets from an input signal configured to: generate at least one first signal, dependent on the input signal, the first signal comprising a first relative time value; generate at least one second signal, dependent on the input signal and associated with the at least one first signal; and generate at least one indicator associated with each of the at least one second signal, each indicator dependent on the first relative time value. | 11-04-2010 |
20110002469 | Apparatus for Capturing and Rendering a Plurality of Audio Channels - A method comprising selecting a subset of audio sources from a plurality of audio sources, and transmitting signals from said selected subset of audio sources to an apparatus, wherein said subset of audio sources is selected in dependence on information provided by said apparatus. | 01-06-2011 |
20110103591 | APPARATUS AND METHOD FOR ADJUSTING SPATIAL CUE INFORMATION OF A MULTICHANNEL AUDIO SIGNAL - An apparatus for enhancing a multichannel audio signal comprising at least two channels configured to: estimate a value representing a direction of arrival associated with a first audio signal from at least a first channel and a second audio signal from at least a second channel of at least two channels of a multichannel audio signal; determine a scaling factor dependent on the direction of arrival associated with the first audio signal and the second audio signal; and apply the scaling factor to a parameter associated with a difference in audio signal levels between the first audio signal and the second audio sign. | 05-05-2011 |
20110153043 | METHODS, APPARATUSES AND COMPUTER PROGRAM PRODUCTS FOR FACILITATING EFFICIENT BROWSING AND SELECTION OF MEDIA CONTENT & LOWERING COMPUTATIONAL LOAD FOR PROCESSING AUDIO DATA - An apparatus for efficiently browsing and selecting media content and reducing computational load of processing audio data may include a processor and a memory storing executable computer program code that causes the apparatus to at least perform operations including obtaining audio signals corresponding to items of media data. The audio data associated with the audio signals is played simultaneously. The computer program code may cause the apparatus to determine whether audio signals correspond to multi channel audio signals when determining whether to generate simplified audio signals. The computer program code may also cause the apparatus to determine directions/locations to output the audio data associated with the audio signals. The determined directions/locations correspond to directions that media data is currently being moved or locations of the media data. Corresponding computer program products and methods are also provided. | 06-23-2011 |
20110206209 | Apparatus - An apparatus configured to determine at least one current phase difference between a first channel audio signal and a second channel audio signal for a current audio frame, calculate at least one phase difference estimate dependent on the at least one phase difference, determine a reliability value for each phase difference estimate, and determine at least one time delay value dependent on the reliability value for each phase difference estimate. | 08-25-2011 |
20110206223 | Apparatus for Binaural Audio Coding - An apparatus configured to: determine at least one first channel audio signal phase value for a current audio frame; determine at least one second channel audio signal phase value for the current audio frame; calculate at least one current phase difference between the at least one first channel audio signal phase value and the at least one second channel audio signal phase value; and determine a time delay value dependent on the at least one current phase difference. | 08-25-2011 |
20110316880 | METHOD AND APPARATUS PROVIDING FOR ADAPTATION OF AN AUGMENTATIVE CONTENT FOR OUTPUT AT A LOCATION BASED ON A CONTEXTUAL CHARACTERISTIC - An apparatus may include a contextual characteristic determiner configured to determine a contextual characteristic of a location. A sensory device may collect sensed data and location information which is used to determine the contextual characteristic of the location. The sensed data, contextual characteristic and/or location information may be compiled into a database by a database compiler. Further, an ambient content package sharer may request and/or provide sensed data and/or determined contextual characteristics to other devices or the database compiler for inclusion in the database. An augmentative content adaptor may thereby provide for adaptation of an augmentative content for output at the location based on the contextual characteristic. Contextual characteristics may include audible contextual characteristics and visual contextual characteristics. | 12-29-2011 |
20120084082 | Adaptive Voice Activity Detection - Encoding audio signals with selecting an encoding mode for encoding the signal categorizing the signal into active segments having voice activity and non-active segments having substantially no voice activity by using categorization parameters depending on the selected encoding mode and encoding at least the active segments using the selected encoding mode. | 04-05-2012 |
20120098983 | Audio-Controlled Image Capturing - A method comprising: receiving a plurality of images corresponding to a time period covering the intended moment for releasing the shutter; receiving an audio signal associated with the plurality of images using audio capturing means; analyzing the received audio signal in order to determine an auditory event associated with a desired output image; and selecting at least one of the plurality of images on the basis of the analysis of the received audio signal for further processing in order to obtain the desired output image. | 04-26-2012 |
20120101610 | Positional Disambiguation in Spatial Audio - A method including: obtaining phase information dependent upon a time-varying phase difference between captured audio channels; obtaining sampling information relating to time-varying spatial sampling of the captured audio channels; and processing the phase information and the sampling information to determine audio control information for controlling spatial rendering of the captured audio channels. | 04-26-2012 |
20120102066 | Method, Devices and a Service for Searching - A method, devices and an internet service is disclosed for carrying out an improved search. Audio features formed from audio data are associated with the image data. The audio features are formed by applying a transform to the audio data, for example to form mel-frequency cepstral coefficients from the audio data. A search criterion for the audio features is specified in addition to a search criterion for the image data. A search is carried out to find image data, and the search criterion for the audio features is used in the search. | 04-26-2012 |
20120163606 | Method and Apparatus for Processing Audio Signals - An apparatus ( | 06-28-2012 |
20120236127 | Processor, Apparatus and Associated Methods - A processor configured to receive respective image data, representative of images, of the same subject scene from two or more image capture sources spaced apart at a particular predetermined distance; identify corresponding features from the respective image data; determine the change in position of the identified features represented in the respective image data; and identify the depth-order of the identified features according to their determined relative change in position to allow for depth-order display of the identified features according to their determined relative change in position. | 09-20-2012 |
20120250581 | Ad-Hoc Surveillance Network - A method and related apparatuses, the method comprising: setting up a network of a plurality of mobile devices ( | 10-04-2012 |
20120295637 | Collaborative Location/Orientation Estimation - It is inter alia disclosed to estimate at least one of a location and an orientation of a first-type device ( | 11-22-2012 |
20120314877 | Sparse Audio - A method comprising: sampling received audio at a first rate to produce a first audio signal; transforming the first audio signal into a sparse domain to produce a sparse audio signal; re-sampling of the sparse audio signal to produce a re-sampled sparse audio signal; and providing the re-sampled sparse audio signal, wherein bandwidth required for accurate audio reproduction is removed but bandwidth required for spatial audio encoding is retained AND/OR a method comprising: receiving a first sparse audio signal for a first channel; receiving a second sparse audio signal for a second channel; and processing the first sparse audio signal and the second sparse audio signal to produce one or more inter-channel spatial audio parameters. | 12-13-2012 |
20130151246 | ADAPTIVE VOICE ACTIVITY DETECTION - Encoding audio signals with selecting an encoding mode for encoding the signal categorizing the signal into active segments having voice activity and non-active segments having substantially no voice activity by using categorization parameters depending on the selected encoding mode and encoding at least the active segments using the selected encoding mode. | 06-13-2013 |
20130195276 | Multi-Channel Audio Processing - A method including: receiving at least a first input audio channel and a second input audio channel; and using an inter-channel prediction model to form at least an inter-channel direction of reception parameter. | 08-01-2013 |
20130208903 | REVERBERATION ESTIMATOR - A method comprising determining a reverberation time estimate for an audio signal from a first part of an encoded audio signal representing the audio signal. | 08-15-2013 |
20130223188 | PROXIMITY DETECTING APPARATUS AND METHOD BASED ON AUDIO SIGNALS - Apparatus comprising at least one processor and at least one memory including computer code, the at least one memory and the computer code configured to with the at least one processor cause the apparatus to at least perform: determining at least one impulse response model pulse train from at least one audio signal; and determining an presence of an object from the at least one impulse model pulse train. | 08-29-2013 |
20130226324 | AUDIO SCENE APPARATUSES AND METHODS - Apparatus comprising at least one processor and at least one memory including computer code, the at least one memory and the computer code configured to with the at least one processor cause the apparatus to at least perform: generating a message comprising a first part for determining a sensory space associated with the apparatus; determining a capture control parameter dependent on a sensory space apparatus distribution; and capturing a signal based on the capture control parameter. | 08-29-2013 |