| Entries |
| Document | Title | Date |
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| 20080219485 | Apparatus, System and Method for Acoustic Signals - The invention relates to an apparatus, system, and method for receiving or reproducing sound. In the method, acoustic signals are received with two dual-diaphragm acoustic transducers ( | 09-11-2008 |
| 20090052700 | SURROUND-SOUND SYSTEM - There is provided a surround-sound system in which the output direction of a sound beam of each channel in a speaker array can be optimized without requiring a user to make any troublesome operation. A parameter setting control portion | 02-26-2009 |
| 20090060235 | SOUND PROCESSING APPARATUS AND SOUND PROCESSING METHOD THEREOF - A sound processing apparatus includes a sound processor to process sound, a plurality of image generators to photograph an object and generate an image, respectively, and a controller to recognize a position of the object with the plurality of images generated by the plurality of image generators, and control the sound processor to adjust a property of the sound corresponding to the position of the object. | 03-05-2009 |
| 20090110219 | SPEAKER ARRAY SYSTEM - A speaker array system for outputting, with a simplified construction, sounds audible with a nearly uniform sound volume within an arbitrarily set area. The speaker array system includes a speaker array having speaker units, a delay unit for supplying the speaker units with delayed audio signals generated by adding delays to an input audio signal, an input unit for inputting area information representing a target area to which an acoustic service is provided using an acoustic beam emitted from the speaker array and which has a normal line extending in a direction different from a normal direction of a speaker surface of the speaker array, and a control unit for calculating delays to be applied to the delay unit. Based on the delays, acoustic waves output from adjacent ones of the speaker units toward the target area are made coincident with each other and an envelope is more distorted from a spherical surface so as to face the target area as the envelope propagates closer to the target area. | 04-30-2009 |
| 20090175472 | Loudspeaker Device - The present invention relates to a loudspeaker device, comprising first and second closely located and individually acoustically isolated loudspeaker elements. The first and second elements are arranged to receive a first signal and a second signal, respectively, at least part of said first signal being in anti-phase relative to said second signal. The device further includes third and fourth loudspeaker elements, being located in close proximity to said first and second loudspeaker elements, respectively. The centre of said third loudspeaker element is located such that a first axis intersecting the centre of said first loudspeaker element and the centre of said third loudspeaker element is inclined an angle φ relative to a horizontal plane, φ being in the range 0°-+30°, and the centre of said fourth loudspeaker element is located such that a second axis intersecting the centre of said second loudspeaker element and the centre of said fourth loudspeaker element is inclined at an angle cp relative to a horizontal plane, φ being 0°-±30°. The first and second signals to said third and fourth loudspeaker elements, respectively, are low-pass filtered, the cut-off frequency of said low-pass filters being less than or equal to 2.5 kHz. | 07-09-2009 |
| 20090279721 | SPEAKER DEVICE - A speaker device includes first speaker units | 11-12-2009 |
| 20090296964 | Compact surround-sound effects system - A loudspeaker suitable for the generation of surround-sound effects comprising a plurality of transducers that are together arranged to generate one or more beams of sound, at least one of which beams is steerable, wherein the transducers are arranged to reproduce sound only at frequencies higher than a selected lower frequency limit of 250 Hz or more. The loudspeaker may be foldable or dismantable so as to allow greater portability and may have means for interacting with an external electronics device, for example to allow low frequency sound signals to be reproduced by woofers in the external device. | 12-03-2009 |
| 20090323991 | METHOD OF IDENTIFYING SPEAKERS IN A HOME THEATER SYSTEM - With an array of speakers including a center speaker provided with left and right ultrasonic electro-acoustic transducers and left and right speakers provided with respective ultrasonic electro-acoustic transducers, it is possible to identify the left and right speakers. One approach includes energizing the left transducer of the center speaker to emit an acoustic ping signal, utilizing the transducers of the left and right speakers to detect the ping signal, measuring lapse of time between emission of the ping signal by said the left transducer and detection of the ping signal by the transducers of the left and right speakers. Then, the right transducer of the center speaker is energized to emit an acoustic ping signal, the transducers of the left and right speakers are utilized to detect the ping signal, and lapse of time between emission of the ping signal by the right transducer and detection of the ping signal by the transducers of the left and right speakers is measured. | 12-31-2009 |
| 20100119091 | ACOUSTIC REPRODUCTION DEVICE - An acoustic reproduction device includes first speaker units | 05-13-2010 |
| 20100124345 | NEAR FIELD SOUND REPRODUCTION METHOD WITH ENHANCED SPATIAL QUALITIES - Sound modules are positioned in proximity to the head of a listener for near field sound. Primary loudspeakers in the sound modules are directed away from a user or blocked by a baffle. No direct sound from the primary loudspeakers reaches the ears of the user. Indirect sound reaches the ears of the user for enhanced near field spatial sound quality. Enhanced depth stereophonic sound is produced by two such modules. Four near field sound modules, two adjacent to each ear produces a surround sound effect. Modulated secondary loudspeaker(s) in each module and secondary baffles positioned opposite the primary loudspeaker(s) enhance the near field spatial sound qualities. | 05-20-2010 |
| 20100142735 | AUDIO APPARATUS AND SIGNAL CALIBRATION METHOD THEREOF - An audio system to calibrate an audio signal based on a wirelessly received signal, and a signal calibration method are provided. The audio system includes a sound output unit to output a sound corresponding to a received audio signal. A transceiver is connected to an external device to enable wireless communication between a main unit and the external device. The external device converts the sound output from the sound output unit into an electric signal to generate a calibration audio signal. The main unit performs calibration on an audio signal to be played back through the sound output unit using the calibration audio signal. | 06-10-2010 |
| 20100150382 | APPARATUS AND METHOD FOR FOCUSING SOUND IN ARRAY SPEAKER SYSTEM - Provided are apparatus and method for focusing sound so that a sound radiation pattern output from an array speaker system composed of a plurality of speakers may approach a target sound radiation pattern. The sound focusing apparatus uses a focusing filter formed in consideration of sound characteristics of the array speaker system. In addition, the sound focusing apparatus may compensate for delay and gain values of each channel generated when an input signal is replicated to a plurality of channels and output through an array speaker in the array speaker system. | 06-17-2010 |
| 20100232630 | ACOUSTIC MULTI-POLE ARRAY AND METHODS OF PACKAGING AND CONTROLLING THE SAME - Provided are an acoustic multi-pole array and methods of packaging and controlling the same. The methods include packaging first and second sound devices constituting an acoustic multi-pole array to have different sound characteristics or the same sound characteristic, arranging the first and second sound devices in tandem, and then respectively inputting sound sources having the same magnitude and different phases to the first and second sound devices to improve forward directivity and reduce a backward radiation characteristic. | 09-16-2010 |
| 20100260360 | SYSTEMS, METHODS, AND APPARATUS FOR CALIBRATING SPEAKERS FOR THREE-DIMENSIONAL ACOUSTICAL REPRODUCTION - Certain embodiments of the invention may include systems, methods, and apparatus for calibrating speakers for three dimensional acoustical reproduction. According to an example embodiment of the invention, a method is provided for initializing a plurality of speakers in a 3D acoustical reproduction system. The method can include positioning one or more calibration microphones near a listener position, generating calibration tones, selectively routing calibration tones to one or more of the plurality of speakers, producing audible tones from the plurality of speakers based on the generated calibration tones, sensing audible tones from the plurality of speakers with the one or more calibration microphones, determining one or more parameters associated with the plurality of speakers based on sensing the audible tones, and modifying settings of the 3D acoustical reproduction system based on the one or more determined parameters. | 10-14-2010 |
| 20100296678 | METHOD AND DEVICE FOR IMPROVED SOUND FIELD RENDERING ACCURACY WITHIN A PREFERRED LISTENING AREA - The invention relates to a method and a device for sound field reproduction from a first audio input signal ( | 11-25-2010 |
| 20110033070 | SOUND IMAGE LOCALIZATION PROCESSING APPARATUS AND OTHERS - A sound image localization processing apparatus is provided, in which a surround system is realized by a front speaker with a simple signal process, and the same side localization effect can be given to a plurality of listeners. | 02-10-2011 |
| 20110091055 | LOUDSPEAKER LOCALIZATION TECHNIQUES - Techniques for loudspeaker localization are provided. Sound is received from a loudspeaker at a plurality of microphone locations. A plurality of audio signals is generated based on the sound received at the plurality of microphone locations. Location information is generated that indicates a loudspeaker location for the loudspeaker based on the plurality of audio signals. Whether the generated location information matches a predetermined desired loudspeaker location for the loudspeaker is determined. A corrective action with regard to the loudspeaker is enabled to be performed if the generated location information is determined to not match the predetermined desired loudspeaker location for the loudspeaker. | 04-21-2011 |
| 20110135125 | METHOD, COMMUNICATION DEVICE AND COMMUNICATION SYSTEM FOR CONTROLLING SOUND FOCUSING - A method for controlling sound focusing includes: obtaining position information of a target sound source relative to a speaker in a speaker array; and controlling sound from the speaker in the speaker array to be focused to the target sound source according to the obtained position information. A communication device includes: a position obtaining unit configured to obtain position information of a target sound source relative to a speaker in a speaker array; and a controlling unit configured to control the sound from the speaker in the speaker array to be focused to the target sound source according to the position information obtained by the position obtaining unit. | 06-09-2011 |
| 20110170720 | Acoustic energy control system for a room - A mechanical acoustic energy control system to be located in a room in which one or more audio speakers are also located so that the audio output of the speakers can be distributed throughout the room to enable a listener in the room to be surrounded by sound. A master acoustic resonator attached to the front wall of the room is adapted to vibrate and thereby produce acoustic waves corresponding to the acoustic energy generated by the speakers. A low frequency (e.g., bass) acoustic resonator sits on the floor of the room below the master acoustic resonator. The low frequency acoustic resonator is adapted to vibrate to reflect low frequency acoustic waves produced by the speakers and the master acoustic resonator. A satellite acoustic resonator is located on each of the back and opposing side walls of the room. The satellite acoustic resonators are adapted to vibrate in response to the acoustic waves reflected thereto by the speakers, the master acoustic resonator, and the low frequency acoustic resonator. The vibration of the satellite acoustic resonators controls the dispersion pattern of acoustic waves in the room so that the listener hears a richer, fuller and more natural sound. | 07-14-2011 |
| 20110222715 | TRANSMISSION DEVICE AND TRANSMISSION METHOD - A transmission device includes: a communication unit performing communication with one or more receiving devices; a distance measurement unit measuring direct distances to the receiving devices; a transmission data setting unit setting transmission data including content data including audio and time information indicating the time when reproduction of content data is started for the receiving devices whose distances are measured based on the measured distances; and a transmission processing unit transmitting transmission data set by the transmission data setting unit to corresponding receiving devices of transmission targets all at once. The transmission data setting unit sets time when the device itself starts reproduction of the content data as a reference time, and sets the time information for synchronizing audio indicated by the content data reproduced in the device itself with audio indicated by the content data reproduced in the receiving devices for each receiving device using the set reference time. | 09-15-2011 |
| 20110268298 | SOUND FIELD CORRECTING DEVICE - At least two speakers are arranged in the left-right direction, and the measurement signal generating unit generates the measurement signal from the two speakers. The measurement signal outputting unit outputs the measurement signal. The measurement signal collecting unit collects the measurement signal for the left-right direction from at least two positions along the left-right direction axis in the acoustic space. The delay correcting unit performs the delay adjustment for any one of the speakers in the acoustic space, based on information that the measurement signal collecting unit obtains by collecting the measurement signal for the left-right direction, until the level difference in the left-right direction becomes equal to or smaller than the predetermined value. The sound field correcting device collects the measurement signal from two positions along the left-right direction axis, and reduces the level difference in the left-right direction based on the information obtained by collecting the sound. | 11-03-2011 |
| 20110280421 | DEVICE FOR AND A METHOD OF PROCESSING AUDIO SIGNALS - A device for processing an audio signal is provided, wherein the processing device comprises a processing unit, and a determination unit, wherein the processing unit is adapted to receive first data associated with a first subsignal of the audio signal and second data associated with a second subsignal of the audio signal, and wherein the determination unit is adapted to determine a compensation value for one of the subsignals depending on a phase difference between the first subsignal and the second subsignal. | 11-17-2011 |
| 20110299706 | AUDIO SIGNAL PROCESSING APPARATUS AND AUDIO SIGNAL PROCESSING METHOD - An audio signal processing apparatus includes: a test signal supply unit to supply a test signal to each speaker of a multi-channel speaker including a center speaker and others; a speaker angle calculation unit to calculate an installation angle of each speaker with an orientation of a microphone as a reference, based on test audio output from each speaker and collected by the microphone; a speaker angle determination unit to determine an installation angle of each speaker with a direction of the center speaker from the microphone as a reference, based on the installation angle of the center speaker and the installation angles of the other speakers with the orientation of the microphone as a reference; and a signal processing unit to perform correction processing on an audio signal based on the installation angles of the speakers with the direction of the center speaker from the microphone as a reference. | 12-08-2011 |
| 20110305358 | HEAD RELATED TRANSFER FUNCTION GENERATION APPARATUS, HEAD RELATED TRANSFER FUNCTION GENERATION METHOD, AND SOUND SIGNAL PROCESSING APPARATUS - A head related transfer function generation apparatus includes a first input unit that inputs a first head related transfer function generated in a first measurement environment, a second input unit that inputs a second head related transfer function generated in a second measurement environment, and a transform normalization processing unit that normalizes a first gain of the first head related transfer function represented in frequency-axis data with a second gain of the second head related transfer function represented in frequency-axis data and also calculates a square root thereof. | 12-15-2011 |
| 20120002828 | AUDIO PROCESSING DEVICE, AUDIO PROCESSING METHOD, AND PROGRAM - There is provided an audio processing device including an estimation unit configured to estimate a user's representative perceived position of a stereoscopic image from a difference between a left-eye image and a right-eye image of the stereoscopic image displayed on a display device, and an audio controller configured to control audio output of an audio output device in accordance with the representative perceived position estimated by the estimation unit. | 01-05-2012 |
| 20120057732 | METHOD AND APPARATUS OF ADJUSTING DISTRIBUTION OF SPATIAL SOUND ENERGY - Provided is a method of adjusting a distribution of spatial sound energy, including storing information associated with a sound transfer function from each of speakers of a speaker array to a position of at least one listener, and information associated with the sound transfer function from each of the speakers of the speaker array to a far-field position, and generating at least two sound beams maximizing a far-field sound pressure attenuation with respect to a source signal, based on information associated with the sound transfer function, in order to form a personal sound zone in the position of the at least one listener. | 03-08-2012 |
| 20120063618 | SPEAKER DEVICE - A speaker device includes a signal processing section and a speaker array that includes a first speaker units group and a second speaker units group. The signal processing section performs a first signal process in which sound based on an audio signal of a first channel is set to output from the first speaker units group and a first virtual focus of the sound is set to an opposite side of the speaker array opposite to a sound output direction of the first speaker units group, and sound based on an audio signal of a second channel is set to output from the second speaker units group and a second virtual focus of the sound based on the audio signal of the second channel is set to an opposite side of the speaker array opposite to a sound output direction of the second speaker units group. | 03-15-2012 |
| 20120114151 | Audio Speaker Selection for Optimization of Sound Origin - A method consistent with certain implementations involves in an audio system having an array of a plurality of loudspeakers and a stored speaker map identifying the geometric relationship between the plurality of loudspeakers and a listening position, identifying a location on the speaker map of a Source Origin of a sound; selecting a method of localizing the Source Origin from a plurality of methods of localizing the Source Origin utilizing the array of loudspeakers; and reproducing the sound emanating from the Source Origin using the selected method. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. | 05-10-2012 |
| 20120114152 | Determining Loudspeaker Layout Using Audible Markers - A method consistent with certain implementations involves switching one or more loudspeakers to behave as one or more microphones while remaining loudspeakers behave as speakers. An audible signal is generated and the outputs of the microphones are processed to identify geometric location of loudspeakers. A filter transfer function is generated for the loudspeakers to psycho-acoustically relocate one or more of the loudspeakers from the identified geometric locations when the one or more loudspeakers are used as loudspeakers. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. | 05-10-2012 |
| 20120114153 | APPARATUS AND METHOD OF REPRODUCING SURROUND WAVE FIELD USING WAVE FIELD SYNTHESIS BASED ON SPEAKER ARRAY - Disclosed are an apparatus and method of surround wave field synthesizing a multi-channel signal excluding sound image localization information. A wave field synthesis and reproduction apparatus may include a signal classification unit to classify an inputted multi-channel signal into a primary signal and an ambient signal, a sound image localization information estimation unit to estimate sound image localization information of the primary signal and sound image localization information of the ambient signal, and a rendering unit to render the primary signal and the ambient signal based on the sound image localization information of the primary signal, the sound image localization information of the ambient signal, and listener environment information. | 05-10-2012 |
| 20120148075 | METHOD FOR OPTIMIZING REPRODUCTION OF AUDIO SIGNALS FROM AN APPARATUS FOR AUDIO REPRODUCTION - There is provided a method for optimizing reproduction of audio signals from an apparatus for audio reproduction with the apparatus for audio reproduction having a variable number of speakers. The method includes determining performance characteristics of each of the variable number of speakers; comparing performance characteristics of each of the variable number of speakers with each other; and designating a master speaker from the variable number of speakers either with or without manual intervention. | 06-14-2012 |
| 20120183161 | DETERMINING INDIVIDUALIZED HEAD-RELATED TRANSFER FUNCTIONS - A device may include capturing images of one or more body parts of a user via a camera, determining a three-dimensional model of the one or more body parts based on the captured images, obtaining a head-related transfer function that is generated based on the three-dimensional model, and storing the head-related transfer function in a memory. | 07-19-2012 |
| 20120213391 | AUDIO REPRODUCTION APPARATUS AND AUDIO REPRODUCTION METHOD - An audio reproduction apparatus is provided which is capable of maintaining the sense of dimensions in an acoustic space even when multi-channel input audio signals are reproduced using speakers having different frequency characteristics. The audio reproduction apparatus includes: a sound source position parameter calculating unit ( | 08-23-2012 |
| 20120230525 | AUDIO DEVICE AND AUDIO SYSTEM - An audio device includes: a reproduction unit that reproduces an audio signal of a plurality of channels; an input unit that receives a detection signal indicating the positions of the reproduction unit and a listener; and a control unit that changes the audio signal to be reproduced by the reproduction unit depending on the position based on the detection signal. | 09-13-2012 |
| 20120288124 | ROOM CHARACTERIZATION AND CORRECTION FOR MULTI-CHANNEL AUDIO - Devices and methods are adapted to characterize a multi-channel loudspeaker configuration, to correct loudspeaker/room delay, gain and frequency response or to configure sub-band domain correction filters. | 11-15-2012 |
| 20130058511 | SYSTEM AND METHOD FOR IMPROVING AUDIO CAPTURE QUALITY IN A LIVING ROOM TYPE ENVIRONMENT - Systems and methods for improving the audio quality in a living-room type of environment having multimedia equipment are described. The audio signals emanating from various speakers may be modified/altered, so as to capture audio signals with the highest signal-to-noise ratio. In the context of a video/audio call, where the positions of the microphone and speakers are generally fixed, the speaker outputs may be controlled/modified to provide an improved signal-to-noise ratio. The audio emanating from the central speaker may be subdued or eliminated to reduce significantly the problems that occur due to the audio from the center speaker being captured by the microphone, which is typically in close proximity to the center speaker. The audio may be provided to the speakers by various ways, such as HDMI, RCA, and so on. | 03-07-2013 |
| 20130083948 | AUTOMATIC AUDIO SWEET SPOT CONTROL - A handheld device includes: an orientation sensor; an audio processor connected to the orientation sensor and adapted to receive orientation information from the orientation sensor; and a plurality of speakers through which audio content is provided, wherein the audio processor modifies the audio signal provided to the speakers based, at least in part, on the orientation information. A method of controlling audio content provided through a plurality of speakers in the device includes the steps of: determining a neutral orientation of the sweet spot; using information from the orientation sensor to measure the relative orientation of the device; and determining whether the relative orientation of the device has changed. If the relative orientation of the device has changed, modifying the audio content provided through the speakers. | 04-04-2013 |
| 20130163794 | DYNAMIC CONTROL OF AUDIO ON A MOBILE DEVICE WITH RESPECT TO ORIENTATION OF THE MOBILE DEVICE - A method of optimizing audio performance of a mobile device. The method can include detecting an orientation of the mobile device. The method also can include, via a processor, responsive to the mobile device being oriented in a first orientation, dynamically selecting at least a first output audio transducer to output left channel audio signals and dynamically selecting at least a second output audio transducer to output right channel audio signals. The method further can include communicating the left channel audio signals to the first output audio transducer and communicating the right channel audio signals to the second output audio transducer. | 06-27-2013 |
| 20130163795 | SOUND REPRODUCTION DEVICE - Provided is a sound reproduction device including a loudspeaker and a superdirective speaker. The loudspeaker is configured so that a sound pressure of audible sound produced therefrom decreases as the sound travels farther away from the loudspeaker. The superdirective speaker is configured so that a sound pressure of audible sound produced therefrom has a peak at a predetermined distance from the superdirective speaker, and is configured to use an ultrasonic wave as a carrier wave. The loudspeaker and the superdirective speaker are positioned such that a loudspeaker sound field of the audible sound produced from the loudspeaker and a superdirective speaker sound field of the audible sound produced from the superdirective speaker overlap with each other at a position of a listener. | 06-27-2013 |
| 20130170678 | METHODS AND SYSTEMS FOR SYNTHETIC AUDIO PLACEMENT - Methods and systems for providing synthetic audio placement are described herein. In different aspects, the methods and systems may include a connection port to receive a plurality of remote audio signals included in a conference call, at least one of the plurality of remote audio connections being a single channel audio signal, a processor configured with the connection port to provide a sound field for placing the plurality of audio signals, the sound field providing synthetic audio placement of each of the plurality of remote audio signals, and a rendering output configured with the processor to project the plurality of remote audio within the sound field to a listener. | 07-04-2013 |
| 20130216071 | AUDIO REPRODUCTION SYSTEMS AND METHODS - Systems and method are disclosed for facilitating efficient calibration of filters for correcting room and/or speaker-based distortion and/or binaural imbalances in audio reproduction, and/or for producing three-dimensional sound in stereo system environments. According to some embodiments, using a portable device such as a smartphone or tablet, a user can calibrate speakers by initiating playback of a test signal, detecting playback of the test signal with the portable device's microphone, and repeating this process for a number of speakers and/or device positions (e.g., next to each of the user's ears). A comparison can be made between the test signal and the detected signal, and this can be used to more precisely calibrate rendering of future signals by the speakers. | 08-22-2013 |
| 20130216072 | System and Method for Dynamic Control of Audio Playback Based on the Position of a Listener - An optimal listening position for the multi-channel audio sound system is determined. A listening area and other audio playback controls may also be defined or modified by a listener. During subsequent audio playback, an imager captures images of at least a portion of the listener. When the listener has moved to a position that is different from a previous position, one or more audio parameters are adjusted for at least one channel in the multi-channel audio system in order to reposition the initial or previous optimal listening position to the current position of the listener. When the listener moves outside the listening area, an out of bounds response is initiated to disable or control the audio playback until the listener moves to a position within the listening area. | 08-22-2013 |
| 20130294624 | DEVICE AND METHOD FOR DRIVING A SOUND SYSTEM AND SOUND SYSTEM - A driving device for a sound system by loudspeaker signals, wherein the sound system has a wave field synthesis loudspeaker array and one or several supply loudspeakers arranged separate from the wave field synthesis array includes an audio input for receiving at least one audio signal from at least one sound source, a position input for receiving information on a position of the sound source, a wave field synthesis unit for calculating loudspeaker signals for the loudspeakers of the wave field synthesis loudspeaker array, and a provider for providing the loudspeaker signal for the one or the several supply loudspeakers. The driving device enables a sound system by means of which sound localization becomes possible for the audience and at the same time pleasant levels can be achieved also in the first rows of the audience. | 11-07-2013 |
| 20130329921 | OPTICALLY-CONTROLLED SPEAKER SYSTEM - An acoustic system may be provided that includes image sensors and speakers. The system may include control circuitry that operates the speakers based on images captured by the image sensors. The control circuitry may operate the image sensors to capture images of users of the system in the listening environment, extract user attributes of the users from the captured images, and control the volume and phase of sounds generated by each of the speakers based on the extracted user attributes. The user attributes may include a location, a motion, a head height, a head tilt angle, a head rotational angle, the position of each ear of a user or other attributes of each user of the system. The control circuitry may operate the speakers to optimize the acoustic experience of each user by generating sounds based on the user attributes of that user. | 12-12-2013 |
| 20130336505 | PASSIVE GROUP DELAY BEAM FORMING - A loudspeaker array and methods for generating sound in an arc pattern. The loudspeaker array includes a plurality of loudspeakers. A delay network is included, the delay network having a plurality of stages. Each stage has a stage input and a stage output. The stage output of each stage is coupled to the stage input of a next stage. Each stage output is also connected to at least one of the plurality of loudspeakers. The stage input of the first stage is coupled to an audio signal input. Each stage is configured to add an electrical delay of the audio signal at each subsequent stage. The electrical delay is adjusted such that the plurality of loudspeakers generates sound in a desired radiation pattern. | 12-19-2013 |
| 20140016801 | METHOD FOR PRODUCING OPTIMUM SOUND FIELD OF LOUDSPEAKER - A method for producing an optimum sound field of loudspeakers is revealed. Firstly enclose a surface of a human head with a first closed geometric shape. Then enclose the first closed geometric shape with at least one second closed geometric shape. Next set up reference points on the first and second closed geometric shapes respectively. Use signal strength of the reference point on the second closed geometric shape and a gradient of the corresponding reference points on the first and second closed geometric shapes to obtain a transfer function of each point between a virtual loudspeaker/a real loudspeaker and the sound field respectively. Then create a virtual sound field and a real sound field according to the above transfer functions. Finally, get an optimum signal of the real loudspeaker by minimizing an error between the virtual sound field and the real sound field with a boundary condition. | 01-16-2014 |
| 20140037117 | METHOD AND SYSTEM FOR UPMIXING AUDIO TO GENERATE 3D AUDIO - In some embodiments, a method for upmixing input audio comprising N full range channels to generate | 02-06-2014 |
| 20140093108 | SOUND PROCESSING DEVICE AND METHOD THEREOF, PROGRAM, AND RECORDING MEDIUM - A sound processing device includes a shift detection unit that detects a shift of a listening point on which a user listens to a sound in a sound field space from a standard reference listening point, and a correction unit that corrects a sound signal based on first sound field correction data for correcting a sound field when the listening point is the standard reference listening point and second sound field correction data for correcting a sound field of the listening point when the listening point is shifted from the standard reference listening point. | 04-03-2014 |
| 20140112505 | INFORMATION PROCESSING SYSTEM, COMPUTER-READABLE NON-TRANSITORY STORAGE MEDIUM HAVING STORED THEREIN INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSING CONTROL METHOD, AND INFORMATION PROCESSING APPARATUS - In an exemplary information processing system including a plurality of sound output sections, the positional relationship among the plurality of sound output sections is recognized. In addition, a sound corresponding to a sound source object present in a virtual space is generated. The output volume of the sound for the sound source object is determined, for each sound output section, in accordance with the positional relationship among the plurality of sound output sections, and the generated sound is outputted in accordance with the output volume. | 04-24-2014 |
| 20140126753 | Speaker Array Apparatus - A speaker array device includes a first speaker array and a second speaker array. The first speaker array has plural first speaker units arranged in a first surface and output a first sound. The second speaker array has plural second speaker units arranged in a second surface that is different from the first surface and output a second sound. When the second speaker array and the first speaker array are installed in a room having a ceiling, the second speaker array is installed in such a manner that a normal direction to the second surface is match with a direction in which the second sound emitted from the second speaker array reaches, only indirectly, through reflection or diffraction, a sound receiving point or that the normal direction to the second surface is match with a direction in which the second sound reaches the sound receiving point with a predetermined sound volume. | 05-08-2014 |
| 20140133683 | System and Method for Adaptive Audio Signal Generation, Coding and Rendering - Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent. The object position metadata contains the appropriate allocentric frame of reference information required to play the sound correctly using the available speaker positions in a room that is set up to play the adaptive audio content. | 05-15-2014 |
| 20140153751 | AUDIO CONTROL BASED ON ORIENTATION - A device may be configured to sense its own orientation with respect to a coordinate system, and to also sense the orientation of a user's head with respect to the device. The device may then determine whether the device orientation has changed with respect to the coordinate system and/or whether the head orientation has changed with respect to the device. Audio signal generation in the device may then be controlled based on the determination. For example, the position of a simulated sound source may be changed in a 3-D audio field based on determined changes in device and/or head orientation. The audio signal may then be transmitted from the device to an apparatus configured to generate sound based on the audio signal (e.g., headphones). | 06-05-2014 |
| 20140153752 | AUDIO APPARATUS, METHOD OF PROCESSING AUDIO SIGNAL, AND A COMPUTER-READABLE RECORDING MEDIUM STORING PROGRAM FOR PERFORMING THE METHOD - An audio apparatus and a method of processing an audio signal of the audio apparatus are provided. The method includes: receiving a main audio and an interactive audio; panning the interactive audio by using position information of a user, sound source position information of the interactive audio, and speaker position information; rendering the panned interactive audio according to a space characteristic of the main audio; and mixing and outputting the rendered interactive audio and the main audio to provide the user with a more lively interactive audio. | 06-05-2014 |
| 20140169595 | SOUND REPRODUCTION CONTROL APPARATUS - A first loudspeaker group driven by a first sound reproduction signal, radiates a plurality of first sounds, and generates a first sound image synthesized from the plurality of first sounds. A second loudspeaker group driven by a second sound reproduction signal, radiates a plurality of second sounds, and generates a second sound image synthesized from the plurality of second sounds. The first and second sound reproduction signals are generated so that a first sound pressure ratio of a first control point to a second control point is equal to a second sound pressure ratio of the first control point to the second control point. The first sound pressure ratio is formed by a third sound radiated from a virtual sound source driven by a target sound reproduction signal. The second sound pressure ratio is formed by a third sound image synthesized from the first and second sound images. | 06-19-2014 |
| 20140177882 | APPARATUS AND A METHOD FOR CONTROLLING A SOUND FIELD - A first filter coefficient and a second filter coefficient are calculated by using spatial transfer characteristics from a first speaker and a second speaker to a first control point and a second control point, and a first sound increase ratio na at the first control point and a second sound increase ratio nb at the second control point, so that, when the first filter coefficient is a through characteristic, a first composite sound pressure from the first speaker and the second speaker to the first control point is na times a first sound pressure from the first speaker to the first control point, and a second composite sound pressure from the first speaker and the second speaker to the second control point is nb times a second sound pressure from the first speaker to the second control point. | 06-26-2014 |
| 20140185842 | DISPLAY APPARATUS AND SOUND CONTROL METHOD THEREOF - A display apparatus connectable to a plurality of external sound output devices and a sound control method thereof. The display apparatus includes: a wireless communication section which wirelessly communicates with a plurality of external sound output devices; a sound signal processor which processes a sound signal; a first sound output section and a second sound output section which output sounds corresponding to the sound signals; and a controller which determines positions of respective sound output devices based on distances between the first sound output section and the respective sound output devices and distances between the second sound output section and the respective sound output devices, and controls the sound signal processor so that the sound signals processed corresponding to the determined positions can be respectively transmitted to the plurality of sound output devices. | 07-03-2014 |
| 20140185843 | AUDIO EQUIPMENT INSTALLATION INFORMATION PROVIDING SYSTEM AND METHOD, PERSONALIZED AUDIO PROVIDING SERVER - Provided are a system and method for providing installation information about audio equipment capable of analyzing audio information and producing sound field effect using a smart phone carried by a music listener. A user may receive his or her preferred audio service anywhere at any time by storing and subsequently using the installation information provided to a listener and providing a personalized audio service on the basis of personal information. | 07-03-2014 |
| 20140193006 | LOCALIZATION CONTROL METHOD OF SOUND FOR PORTABLE DEVICE AND PORTABLE DEVICE THEREOF - A localization control method of a sound for a portable device and a portable device thereof is provided. The localization control method of a sound for a portable device includes collecting location information of the portable device and location information of a counterpart portable device when an event for communicating with the counterpart portable device by the portable device is generated, determining localization of the sound based on the location information, and outputting the sound according to the determined localization. | 07-10-2014 |
| 20140270284 | CHARACTERISTIC-BASED COMMUNICATIONS - Embodiments relate generally to electrical and electronic hardware, computer software, wired and wireless network communications, and portable and wearable media devices. Media devices may include a plurality of RF transceivers and an audio system. The RF transceivers and/or audio system may be used to wirelessly communicate between media devices and allow configuration and other data to be wirelessly transmitted from one media device to another media device. Each media device introduced into an eco-system of other media devices is configured to wirelessly communicate with other the devices and to change its role based on media content and data in each devices configuration file that specify user preferences under different circumstances. | 09-18-2014 |
| 20140294211 | APPARATUS AND METHOD FOR LISTENING ROOM EQUALIZATION USING A SCALABLE FILTERING STRUCTURE IN THE WAVE DOMAIN - An apparatus for listening room equalization is provided. A system identification adaptation unit is configured to adapt a first loudspeaker-enclosure-microphone system identification to obtain a second loudspeaker-enclosure-microphone system identification. A filter adaptation unit is configured to adapt a filter based on the second loudspeaker-enclosure-microphone system identification a predetermined loudspeaker-enclosure-microphone system identification. A filter includes a plurality of subfilters each of which receive one or more of the transformed loudspeaker signals. Each of the subfilters is adapted to generate one of a plurality of filtered loudspeaker signals based on the one or more received loudspeaker signals. At least one of the subfilters is arranged to couple the at least two received loudspeaker signals to generate one of the plurality of the filtered loudspeaker signals. At least one of the subfilters has a number of the received loudspeaker signals that is smaller than a total number of the plurality of transformed loudspeaker signals. | 10-02-2014 |
| 20140301582 | SYSTEM AND METHOD FOR IMPROVING SOUND IMAGE LOCALIZATION THROUGH CROSS-PLACEMENT - A system and a method of improving sound image localization through cross-placement are provided. The system includes a first stereo system including a first left side speaker that is provided with a left side audio signal and a first right side speaker that is provided with a right side audio signal, and a second stereo system including a second left side speaker that is provided with a left side audio signal and a second right side speaker that is provided with a right side audio signal. The second right side speaker is provided adjacent to the first left side speaker and the second left side speaker is provided adjacent to the first right side speaker. | 10-09-2014 |
| 20140314256 | METHOD AND SYSTEM FOR MODIFYING A SOUND FIELD AT SPECIFIED POSITIONS WITHIN A GIVEN LISTENING SPACE - An audio system provides modified audio signals for acoustic output sources (speakers) disposed around a listening area. A sound allocation processor receives an audio source signal. A plurality of audio modifying elements, each of which may comprise one or more custom filters, operate separately on the audio source signal and provide a custom output signal for each acoustic output source. The audio modifying elements may modify a gain and/or a phase characteristic of the audio source signal independently for each acoustic output source in order to create a substantially uniform sound level or desired sound field pattern over the listening area or within defined zones within the listening area. A global equalization adjustment may also be applied. Search algorithms may be used to arrive at appropriate parameters for the audio modifying elements. | 10-23-2014 |
| 20140321680 | SOUND FIELD CONTROL DEVICE, SOUND FIELD CONTROL METHOD, PROGRAM, SOUND CONTROL SYSTEM AND SERVER - A sound field control device according to the present disclosure includes a display target object position information acquisition unit for acquiring position information of a viewer from information obtained by imaging, and a virtual sound source position control unit for controlling a virtual sound source position on the basis of the position information. Thus, it becomes possible to optimally adjust virtual sound source reproduction in consideration of size or orientation of a head. Accordingly, it becomes possible to provide a sound field without unnatural feeling to viewers. | 10-30-2014 |
| 20140328505 | SOUND FIELD ADAPTATION BASED UPON USER TRACKING - Embodiments are disclosed that relate to adapting sound fields in an environment. For example, one disclosed embodiment includes receiving information regarding a user in the environment, and outputting one or more audio signals to one or more speakers based on the information. The method further includes detecting a change in the information that indicates a change in the position of one or more of the user and an object related to the user in the environment, and modifying the one or more audio signals output to the one or more speakers based on the change in the information. | 11-06-2014 |
| 20140328506 | METHODS AND SYSTEMS TO PROVIDE AUTOMATIC CONFIGURATION OF WIRELESS SPEAKERS - Methods and systems for automatic configuration of wireless speakers are disclosed. A system is described whereby a wireless speaker is configured to use an audio tone to generate a sound wave. The sound wave is received by an audio input/output device, which uses the received sound wave to generate audio information. A processor is configured to use the audio information to determine a distance between the wireless speaker and the audio input/output device, and to configure an audio parameter of the wireless speaker as a function of the distance. | 11-06-2014 |
| 20140334650 | METHODS AND DEVICES FOR REPRODUCING SURROUND AUDIO SIGNALS - Method and devices for providing surround audio signals are provided. Surround audio signals are received and are binaurally filtered by at least one filter unit. In some embodiments, the input surround audio signals are also processed by at least one equalizing unit. In those embodiments, the binaurally filtered signals and the equalized signals are combined to form output signals. | 11-13-2014 |
| 20140348354 | GENERATION OF INDIVIDUAL SOUND ZONES WITHIN A LISTENING ROOM - A sound reproduction system that is capable of providing at least two separate sound zones in one coherent listening room. In each sound zone, resulting acoustic signals substantially corresponds to a respective audio source signal associated with the same sound zone, and the contribution of audio source signals associated with a different sound zone to the resulting sound signal is minimized. | 11-27-2014 |
| 20140348355 | SPEAKER CONFIGURATION - A method of configuring an array of speaker elements is disclosed. The method computes a sound pressure level at various points in the venue and that is evaluated by various objective functions. The configuration of the array is changed, for example by the orientation or position of the speakers and the sound field is recalculated. The process is then iterated until an acceptable configuration is found. The real physical array of speakers is then configured in that manner. The method also provides a 3D plot of the sound pressure level displayed against frequency and position in the venue. | 11-27-2014 |
| 20140348356 | METHOD AND A DEVICE FOR REPRODUCING LOW FREQUENCY SOUND IN A RECTANGULAR ROOM - For reproducing sound in a rectangular room in association with a video playback screen ( | 11-27-2014 |
| 20140348357 | Sound Effect Adjustment Method, Apparatus and Device - A sound effect adjustment method, apparatus and system are provided that are applicable to the sound box field. The method includes: detecting the number of connected sound boxes, a sound box orientation angle, and a distance between a sound box and a listener; selecting a corresponding sound field model; loading the distance between the sound box and the listener and the sound box orientation angle, and adjusting a sound field transmission function; and adjusting a digital audio signal and outputting the adjusted digital audio signal. In the embodiments of the present invention, the sound field transmission function of the sound box can be specifically adjusted according to the position of the listener, so that the sound box can be more adaptive to the specific number of sound playing apparatuses and the position of the listener, the acoustic effects are further improved, and higher adaptability is achieved. | 11-27-2014 |
| 20140355794 | BINAURAL RENDERING OF SPHERICAL HARMONIC COEFFICIENTS - A device comprises one or more processors configured to apply a binaural room impulse response filter to spherical harmonic coefficients representative of a sound field in three dimensions so as to render the sound field. | 12-04-2014 |
| 20140355795 | FILTERING WITH BINAURAL ROOM IMPULSE RESPONSES WITH CONTENT ANALYSIS AND WEIGHTING - A device comprising one or more processors is configured to apply adaptively determined weights to a plurality of channels of the audio signal to generate a plurality of adaptively weighted channels of the audio signal. The processors are further configured to combine at least two of the plurality of adaptively weighted channels of the audio signal to generate a combined signal. The processors are further configured to apply a binaural room impulse response filter to the combined signal to generate a binaural audio signal. | 12-04-2014 |
| 20140355796 | FILTERING WITH BINAURAL ROOM IMPULSE RESPONSES - A device comprising one or more processors is configured to determine a plurality of segments for each of a plurality of binaural room impulse response filters, wherein each of the plurality of binaural room impulse response filters comprises a residual room response segment and at least one direction-dependent segment for which a filter response depends on a location within a sound field; transform each of at least one direction-dependent segment of the plurality of binaural room impulse response filters to a domain corresponding to a domain of a plurality of hierarchical elements to generate a plurality of transformed binaural room impulse response filters, wherein the plurality of hierarchical elements describe a sound field; and perform a fast convolution of the plurality of transformed binaural room impulse response filters and the plurality of hierarchical elements to render the sound field. | 12-04-2014 |
| 20150016641 | AUDIO PROCESSING APPARATUS - An apparatus comprising: a spatial audio analyser configured to determine, using at least one audio signal, at least one acoustic source; a location determiner configured to determining at least one point of interest location associated with the at least one acoustic source; a trajectory determiner configured to determine a trajectory of the at least one point of interest location associated with the at least one acoustic source; and a processor configured to reproduce the at least one audio signal from at least one sound playback transducer based on the determined trajectory. | 01-15-2015 |
| 20150036847 | ACOUSTIC DETECTION OF AUDIO SOURCES TO FACILITATE REPRODUCTION OF SPATIAL AUDIO SPACES - Embodiments of the invention relate generally to electrical and electronic hardware, computer software, wired and wireless network communications, and wearable computing devices to facilitate production and/or reproduction of a spatial sound field and/or one or more audio spaces. More specifically, disclosed are systems, components and methods to determine acoustically positions of audios sources, such as vocal users, for providing audio spaces and spatial sound field reproduction for remote listeners. In one embodiment, a media device includes a housing, transducers disposed in the housing to emit audible acoustic signals into a region including one or more audio sources, acoustic probe transducers configured to emit ultrasonic signals and acoustic sensors configured to sense received ultrasonic signals reflected from an audio source. A controller can determine a position of the audio source. | 02-05-2015 |
| 20150036848 | MOTION DETECTION OF AUDIO SOURCES TO FACILITATE REPRODUCTION OF SPATIAL AUDIO SPACES - Embodiments of the invention relate generally to electrical and electronic hardware, computer software, wired and wireless network communications, and wearable/mobile computing devices configured to facilitate production and/or reproduction of spatial audio and/or one or more audio spaces. More specifically, disclosed are systems, components and methods to acoustically determine displacements of audios sources (or portions thereof), such as a subset of speaking users, for providing audio spaces and spatial sound field reproduction, for example, for a remote listener. In one embodiment, a media device includes transducers to emit audible acoustic signals into a region including one or more audio sources, acoustic probe transducers configured to emit ultrasonic signals and acoustic sensors configured to sense received ultrasonic signals reflected from an audio source. A controller can determine a displacement of the audio source. Examples of displacement include locomotion, gesture-related motion and orientation changes. | 02-05-2015 |
| 20150078595 | AUDIO ACCESSIBILITY - An audio delivery method. An image of a listening area is captured and processed to locate a position of a listener in the room. A stored listener profile associated with the listener is retrieved and audio characteristics are established based on the listener's profile. A directional beam of audio is directed toward the listener's ears and the directional beam is adjusted to track movement of the listener. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. | 03-19-2015 |
| 20150078596 | OPTIMIZING AUDIO SYSTEMS - A system with speakers in a listening environment is optimized acquiring data to determine characteristics of the acoustic field generated by the speakers. Test signals are supplied to the speakers and sound measurements made at a plurality of microphone positions in the listening environment. A set of parameters is generating reflecting a weighted frequency response curve, the set of parameters being calculated from the frequency response data weighted in proportion to a distance between a listening spot within the listening environment and the microphone position. | 03-19-2015 |
| 20150098596 | HANDHELD INTERFACE FOR SPEAKER LOCATION - An interface for optimizing speaker sound in a wireless speaker array installation and optimization. | 04-09-2015 |
| 20150104049 | ACOUSTIC DEVICE, AUGMENTED REALITY ACOUSTIC DEVICE, ACOUSTIC SYSTEM, ACOUSTIC PROCESSING METHOD, AND RECORDING MEDIUM - An acoustic device includes: a memory; and a processor coupled to the memory. The processor executes a process including: first determining, based on a state of a user, an arbitrary object from among objects around the user as an object that is watched by the user; second determining the watched object as a target when a predetermined determination time elapses from a timing at which the arbitrary object is determined as the watched object; generating, when the watched object is determined as the target, acoustic signals for outputting audio of a sound generator corresponding to the target in association with a position of the target; and making, based on a difference between a moving direction of the user and a direction of a body of the user, an adjustment to reduce remaining time until when the predetermined determination time elapses. | 04-16-2015 |
| 20150104050 | Determining the Configuration of an Audio System For Audio Signal Processing - An audio system includes one or more speakers situated in an environment. The positions of components which are relevant to the audio system may be used to adapt how an audio signal is output from the speakers, in order to implement complex audio effects such as wave field synthesis and beamforming. An image of the environment is captured (e.g. with a camera) and the positions of relevant components of the environment are identified by processing the captured image. The identified positions may then be used to adapt the output of an audio signal from one or more of the speakers of the audio system. In this way it is simple to configure the audio system to suit the positions of the relevant components in the environment. | 04-16-2015 |
| 20150131826 | AUDIO PRECOMPENSATION CONTROLLER DESIGN WITH PAIRWISE LOUDSPEAKER CHANNEL SIMILARITY - A method for determining an audio precompensation controller for an associated sound generating system comprising a total of N≧2 loudspeakers, each having a loudspeaker input. The audio precompensation controller has a number L≧2 inputs for L input signal(s) and N outputs for N controller output signals, one to each loudspeaker. It is relevant to: estimate (S | 05-14-2015 |
| 20150146897 | AUDIO SIGNAL PROCESSING METHOD AND AUDIO SIGNAL PROCESSING DEVICE - An audio signal processing method includes: obtaining an L signal including a sound localized closer to the left as a major component and an R signal including a sound localized closer to the right as a major component; extracting a first signal which is a component of a sound included in the L signal and localized closer to the right and a second signal which is a component of a sound included in the R signal and localized closer to the left; generating a first output signal by subtracting the first signal from the L signal and adding the second signal to the L signal and a second output signal by subtracting the second signal from the R signal and adding the first signal to the R signal; and outputting the first output signal and the second output signal. | 05-28-2015 |
| 20150146898 | SOUND FIELD SUPPORTING DEVICE AND SOUND FIELD SUPPORTING SYSTEM - Listening position is disposed on or in the proximity of the plane same as that of the diaphragm of a planar loudspeaker. An audio sound emitted from a main loudspeaker being a sound source is received by a microphone of a sound field supporting device to be outputted from the planar loudspeaker as a sound wave according to a signal of an indirect sound component generated in a DSP. There are few sounds that directly reach the listening position from the planar loudspeaker, resulting in that reflected sounds reflected by wall surfaces, a ceiling, and the like in the room mainly reach the listening position. Accordingly, a user existing at the listening position hears mainly the indirect sound components reflected by the wall surfaces without feeling localization of the planar loudspeaker itself, and a sound field in which the indirect sound components resonate in the entire room can be provided. | 05-28-2015 |
| 20150296319 | SPATIAL AUDIO ENHANCEMENT APPARATUS - An apparatus comprising: a depth map estimator configured to determine, associated with at least one visual image, a depth map comprising at least one distance value in a direction relative to an apparatus; a direction of arrival estimator configured to determine, using at least two microphones, at least one audio source signal with a direction; and an audio signal processor configured to process the at least one audio source signal based on the at least one distance value in the direction of the at least one audio source signal. | 10-15-2015 |
| 20150304789 | METHOD AND SYSTEM FOR GENERATION OF SOUND FIELDS - A system and method for providing sound-data indicative of an audible sound to be produced and location-data indicative of a designated spatial location at which the audible sound is to be produced; and utilizing the sound-data and determining frequency content of ultrasound beams to be transmitted by an acoustic transducer system including an arrangement of ultrasound transducer elements for generating said audible sound. The ultrasound beams include primary audio modulated ultrasound beam(s), whose frequency contents includes ultrasonic frequency components selected to produce the audible sound after undergoing non-linear interaction in a non-linear medium, and additional ultrasound beam(s) each including ultrasonic frequency component(s). The location-data is utilized for determining focal points for the ultrasound beams respectively such that focusing the ultrasound beams on the focal points enables generation of a localized sound field with the audible sound in the vicinity of the designated spatial location. | 10-22-2015 |
| 20150304790 | FUNCTION CONTROL APPARATUS AND PROGRAM - An electronic device includes processing circuitry configured to produce an audio sound from a virtual sound source position. The circuitry also acquires from a user-input a sound position information of a perceived sound source position, and then controls an enable or disable of a function of the electronic device based on a relationship between the virtual sound source position and the perceived sound source position. | 10-22-2015 |
| 20150312678 | METHOD AND APPARATUS FOR DETERMINING DOMINANT SOUND SOURCE DIRECTIONS IN A HIGHER ORDER AMBISONICS REPRESENTATION OF A SOUND FIELD - In Higher Order Ambisonics, a problem is the tracking of time variant directions of dominant sound sources. The following processing is carried out: from a current time frame of HOA coefficients, estimating a directional power distribution of dominant sound sources, from said directional power distribution and from an a-priori probability function for dominant sound source directions, computing an a-posteriori probability function for said dominant sound source directions, depending on said a-posteriori probability function and on dominant sound source directions for the previous time frame, searching and assigning dominant sound source directions for said current time frame of said HOA coefficients. | 10-29-2015 |
| 20150312695 | ACOUSTIC CONTROL APPARATUS - According to an embodiment, a control filter coefficient is calculated in such a manner that a second spatial average of one or more complex sound pressure ratios at one or more target binaural positions when a first loudspeaker and a second loudspeaker emit a second acoustic signal and a first acoustic signal is approximated to a first spatial average of one or more complex sound pressure ratios at the one or more target binaural positions when a target virtual acoustic source emits the first acoustic signal. | 10-29-2015 |
| 20150319530 | Spatial Audio Apparatus - An apparatus comprising: an input configured to receive at least one audio signal from a further apparatus; an input configured to receive at least one audio signal associated with the apparatus; an orientation/location determiner configured to determine a relative orientation/location difference between the apparatus and the further apparatus; an audio processor configured to process the at least one audio signal from the further apparatus based on the relative orientation/location difference between the apparatus and the further apparatus; and a combiner configured to combine the at least one audio signal from the further apparatus having been processed and the at least one audio signal associated with the apparatus. | 11-05-2015 |
| 20150319549 | SOUND FIELD ADJUSTMENT FILTER, SOUND FIELD ADJUSTMENT APPARATUS AND SOUND FIELD ADJUSTMENT METHOD - A device for providing a sound field by adjusting the listener's interaural correlation coefficient. A sound field adjustment filter is provided with a pair of filter circuit groups corresponding to a left and right channel. This filter divides a desired frequency band of the audio signal into multiple frequency bands and assigns prescribed transmission characteristics to generate a sound field adjustment signal for each frequency band such that a prescribed impulse response is configured cooperatively for the entire desired frequency band of the audio signal. The transmission characteristics adjust the audio signal for each split frequency band by the addition of time delay and gain. By means of operation output units, the filter adds the sound field adjustment signals generated by each of the filter circuit groups to the audio signal of the other channels, and outputs to stereo speakers. | 11-05-2015 |
| 20150319550 | COMMUNICATION METHOD, SOUND APPARATUS AND COMMUNICATION APPARATUS - A sound apparatus includes: an acquisition unit that acquires multichannel audio data; a transmission unit that transmits the multichannel audio data to a conversion apparatus via a communication network; a reception unit that receives from the conversion apparatus, two-channel audio data generated by converting the multichannel audio data into a virtual sound source by the conversion apparatus; and an audio reproduction unit that drives two loudspeakers according to the two-channel audio data. | 11-05-2015 |
| 20150341737 | Frequency Routing Based on Orientation - Systems, methods, and apparatus for frequency routing based on orientation are disclosed. An example method includes receiving, by a playback device, an audio data stream. The example method includes determining, by the playback device, an orientation of the playback device. The example method includes routing, by the playback device, a first set of frequencies in the audio data stream to at least one of a plurality of speaker drivers based on the first orientation. The example method includes routing, by the playback device, a second set of frequencies in the audio data stream to the at least one of the plurality of speaker drivers based on the second orientation, wherein the first set of frequencies is different than the second set of frequencies. | 11-26-2015 |
| 20150350805 | SOUND WAVE FIELD GENERATION - A system and a method are configured to generate a sound wave field around a listening position in a room in which a loudspeaker array of K≧1 groups of loudspeakers, with each group of loudspeakers having at least one loudspeaker, is disposed around a listening position, and a microphone array of M≧1 groups of microphones, with each group of microphones having at least one microphone, is disposed at the listening position. The system and a method include equalizing filtering with controllable transfer functions in signal paths upstream of the K groups of loudspeakers and downstream of an input signal path, and controlling with equalization control signals of the controllable transfer functions for equalizing filtering according to an adaptive control algorithm based on error signals from the groups of microphones and an input signal on the input signal path. | 12-03-2015 |
| 20150358753 | METHOD AND APPARATUS FOR REPRODUCING THREE-DIMENSIONAL SOUND - Stereophonic sound is reproduced by acquiring image depth information indicating a distance between at least one object in an image signal and a reference location, acquiring sound depth information indicating a distance between at least one sound object in a sound signal and a reference location based on the image depth information, and providing sound perspective to the at least one sound object based on the sound depth information. | 12-10-2015 |
| 20150373473 | METHOD FOR MEASURING HOA LOUDNESS LEVEL AND DEVICE FOR MEASURING HOA LOUDNESS LEVEL - The invention relates to Higher-Order Ambisonics (HOA) Content Loudness Level Adjustment. A method for adjusting a loudness level of a HOA audio signal on a transmitting side comprises steps of measuring loudness of only the W-channel of the HOA audio signal, and leveling HOA master gain for all channels of the HOA signal according to the measured loudness of the W-channel. | 12-24-2015 |
| 20150373475 | Parametric Wave Field Coding for Real-Time Sound Propagation for Dynamic Sources - The techniques discussed herein may facilitate real-time computation and playback of a propagated signal(s) perceived at a listener location in a three-dimensional environment in response to reception of a desired anechoic signal at a source location in the three-dimensional environment. The propagated audio realistically accounts for dynamic signal sources, dynamic listeners, and effects caused by the geometry and composition of the three-dimensional environment. The techniques may parameterize impulse response(s) of the environment and convolve the anechoic signal with canonical filters at run-time in a manner that respects the parameters of the parameterized impulse response(s). The techniques also provide for real-time computation and playback of a propagated audio signal perceived at a listener location in a virtual three-dimensional environment responsive to generation of source audio signals generated at multiple source locations in the virtual three-dimensional environment. | 12-24-2015 |
| 20150373476 | AUDIO SYSTEM PHASE EQUALIZATION - A method is provided for optimizing acoustic localization at one or more listening positions in a listening environment such as, but not limited to, a vehicle passenger compartment. The method includes generating a sound field with a group of loudspeakers assigned to at least one of the listening positions, the group of loudspeakers including first and second loudspeakers, where each loudspeaker is connected to a respective audio channel; calculating filter coefficients for a phase equalization filter; configuring a phase response for the phase equalization filter such that binaural phase difference (Δφ | 12-24-2015 |
| 20150373477 | Sound Localization for an Electronic Call - During an electronic call between two individuals, a sound localization point simulates a location in empty space from where an origin of a voice of one individual occurs for the other individual. | 12-24-2015 |
| 20150382129 | DRIVING PARAMETRIC SPEAKERS AS A FUNCTION OF TRACKED USER LOCATION - Described herein are various technologies pertaining to parametric speakers. A parametric speaker is driven based upon a determined location of an ear of a listener. The parametric speaker outputs an ultrasonic beam that comprises several modulated signals, the modulated signals being carrier signals modulated by an audio signal. The parametric speaker is driven such that a main lobe of the ultrasonic beam has a focal point between the ear of the listener and the parametric speaker. | 12-31-2015 |
| 20150382130 | CAMERA BASED ADJUSTMENTS TO 3D SOUNDSCAPES - Systems and methods may provide for obtaining an image of an individual wearing a headset and determining a head orientation of the individual based on the image. Additionally, a soundscape delivered to the individual via the headset may be adjusted based on the head orientation of the individual. In one example, adjusting the soundscape includes adjusting one or more of an audio delivery time difference between left and right channels of the soundscape, a volume difference between left and right channels of the soundscape, and a frequency component of the soundscape. | 12-31-2015 |
| 20160007117 | Beam Direction Setting Device and Beam Direction Setting System - A beam direction setting device includes a communication unit configured to communicate with a speaker system configured to output a sound to a predetermined direction as a beam, a display unit configured to display a position of the speaker system, a reception unit configured to receive a designation of a listening position relative to the speaker system, and an acquisition unit configured to acquire information indicating a beam direction based on a relationship between the listening position received by the reception unit and the position of the speaker system displayed on the display unit. The display unit further displays the listening position and the beam direction. | 01-07-2016 |
| 20160007118 | METHOD, USER TERMINAL, AND AUDIO SYSTEM, FOR SPEAKER LOCATION DETECTION AND LEVEL CONTROL USING MAGNETIC FIELD - Provided is a control method of a user terminal apparatus and device, for speaker location detection and level control using a magnetic field. The method includes receiving reference magnetic field information generated by at least one speaker, in response to a magnetic field being generated based on the reference magnetic field information by the at least one speaker, detecting the magnetic field generated by the at least one speaker, acquiring location information of the at least one speaker using the detected magnetic field information and the reference magnetic field information, and transmitting the location information of each of the at least one speaker to a source apparatus. | 01-07-2016 |
| 20160007134 | AUDIO SIGNAL CORRECTION AND CALIBRATION FOR A ROOM ENVIRONMENT - Disclosed are an apparatus and method of processing an audio signal to optimize audio for a room environment. One example method of operation may include recording the audio signal generated within a particular room environment and processing the audio signal to create an original frequency response based on the audio signal. The method may also include creating at least two iterative filters based on at least two separate frequency ranges of the original frequency response, calculating an error difference between the frequency response modified by the at least two iterative filters and the original frequency response, and applying the error difference to the audio signal. | 01-07-2016 |
| 20160014540 | SOUNDBAR AUDIO CONTENT CONTROL USING IMAGE ANALYSIS | 01-14-2016 |
| 20160021458 | TIMBRE CONSTANCY ACROSS A RANGE OF DIRECTIVITIES FOR A LOUDSPEAKER - A system and method for driving a loudspeaker array across directivities and frequencies to maintain timbre constancy in a listening area is described. In one embodiment, a frequency independent room constant describing the listening area is determined using the directivity index of a first beam pattern, the direct-to-reverberant ratio DR at the listener's location in the listening area, and an estimated reverberation time T | 01-21-2016 |
| 20160021476 | System and Method for Adaptive Audio Signal Generation, Coding and Rendering - Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent. The object position metadata contains the appropriate allocentric frame of reference information required to play the sound correctly using the available speaker positions in a room that is set up to play the adaptive audio content. | 01-21-2016 |
| 20160021481 | ADJUSTING THE BEAM PATTERN OF A SPEAKER ARRAY BASED ON THE LOCATION OF ONE OR MORE LISTENERS - A directivity adjustment device that maintains a constant direct-to-reverberant ratio based on the detected location of a listener in relation to the speaker array is described. The directivity adjustment device may include a distance estimator, a directivity compensator, and an array processor. The distance estimator detects the distance between the speaker array and the listener. Based on this detected distance, the directivity compensator calculates a directivity index form a beam produced by the speaker array that maintains a predefined direct-to-reverberant sound energy ratio. The array processor receives the calculated directivity index and processes each channel of a piece of sound program content to produce a set of audio signals that drive one or more of the transducers in the speaker array to generate a beam pattern with the calculated directivity index. | 01-21-2016 |
| 20160029141 | METHOD AND APPARATUS FOR DETERMINING A POSITION OF A MICROPHONE - An apparatus comprises a receiver ( | 01-28-2016 |
| 20160029142 | ADAPTIVE ROOM EQUALIZATION USING A SPEAKER AND A HANDHELD LISTENING DEVICE - A loudspeaker that measures the impulse response of a listening area is described. The loudspeaker may output sounds corresponding to a segment of an audio signal. The sounds are sensed by a listening device proximate to a listener and transmitted to the loudspeaker. The loudspeaker includes an adaptive filter that estimates the impulse response of the listening area based on the signal segment. An error unit analyzes the estimated impulse response together with the sensed audio signal received from the listening device to determine the accuracy of the estimate. New estimates may be generated by the adaptive filter until an accuracy level is achieved for the signal segment. A processor may utilize one or more estimated impulse responses corresponding to various signal segments that cover a defined frequency spectrum for adjusting the audio signal to compensate for the impulse response of the listening area. Other embodiments are also described. | 01-28-2016 |
| 20160029143 | ACOUSTIC BEACON FOR BROADCASTING THE ORIENTATION OF A DEVICE - A method for determining the orientation of a loudspeaker relative to a listening device is described. The method simultaneously drives each transducer to emit beam patterns corresponding to distinct orthogonal audio signals. The listening device senses sounds produced by the orthogonal audio signals and analyzes the sensed audio signal to determine the spatial orientation of the loudspeaker relative to the listening device. Other embodiments are also described. | 01-28-2016 |
| 20160037260 | METHOD FOR RENDERING A STEREO SIGNAL - The invention relates to a method for rendering a stereo audio signal over a first loudspeaker and a second loudspeaker with respect to a desired direction, the stereo audio signal comprising a first audio signal component (L) and a second audio signal component (R), the method comprising: providing a first rendering signal based on a combination of Land a first difference signal obtained based on a difference between L and R to the first loudspeaker, and providing a second rendering signal based on a combination of R and a second difference signal obtained based on the difference between L and R to the second loudspeaker, such that both difference signals are different with respect to sign and one difference signal is delayed by a delay compared to the other difference signal to define a dipole signal, wherein the delay is adapted according to the desired direction. | 02-04-2016 |
| 20160037282 | METHOD, DEVICE AND SYSTEM - Method for approximating the synthesis of a target sound field based on contributions of a predefined number of synthesis monopoles placed at respective synthesis positions, the method comprising modelling the target sound field as at least one target monopole placed at a defined target position. | 02-04-2016 |
| 20160044406 | Playback Device Speaker Configuration Based on Proximity Detection - Embodiments described herein involve configuring a playback device based on the detection of a barrier in proximity to the playback device. One embodiment may involve causing the playback device to play an audio content, where a first speaker of the playback device is arranged to output in a first direction and configured to play a component of the audio content; receiving proximity data that includes an indication of a barrier that is proximate to the playback device; detecting that the barrier is within a threshold proximity to the first speaker of the playback device; based on the detecting, causing the first speaker to be deactivated; and causing a second speaker of the playback device to play at least the component of the audio content, where the second speaker arranged to output in a second direction that is different from the first direction. | 02-11-2016 |
| 20160044435 | AUDIO REPRODUCING APPARATUS AND METHOD - An audio reproducing apparatus includes: an obtainment unit configured to obtain a stereo audio signal including an L channel signal and an R channel signal; and a control unit configured to (i) generate a first audio signal for a speaker disposed at an upper position in a listening space and a second audio signal for a speaker disposed at a lower position in the listening space, using the L channel signal and the R channel signal and (ii) determine a gain coefficient corresponding to a degree of correlation between the L channel signal and the R channel signal and multiply by the determined gain coefficient at least one of the first audio signal and the second audio signal, to approximate a ratio between energy of sound reproduced from the first audio signal and energy of sound reproduced from the second audio signal to a predetermined value. | 02-11-2016 |
| 20160044437 | Proximity Detection Based Using Audio Pulse - Embodiments described herein involve configuring a playback device based on the detection of a barrier in proximity to the playback device. One embodiment may involve receiving proximity data that includes an indication of a barrier that is proximate to a playback device; detecting that the barrier is within a threshold proximity to a first speaker of the playback device based on the indication of the barrier that is proximate to the playback device; in response to the detecting, setting a playback configuration of the playback device; and causing the playback device to play an audio content according to the playback configuration. | 02-11-2016 |
| 20160050508 | METHOD FOR MANAGING REVERBERANT FIELD FOR IMMERSIVE AUDIO - A method for reproducing, in an auditorium, audio sounds in an audio program commences by examining audio sounds in the audio program to determine which sounds are precedent and which sound are consequent (e.g., a gunshot and its ricochet). The precedent and consequent audio sounds undergo reproduction by sound reproducing devices in the auditorium, wherein the consequent audio sounds undergo a delay relative to the precedent audio sounds in accordance with distances from sound reproducing devices in the auditorium so audience members will hear precedent audio sounds before consequent audio sounds. | 02-18-2016 |
| 20160066118 | AUDIO SIGNAL PROCESSING METHOD USING GENERATING VIRTUAL OBJECT - The audio signal processing method according to one embodiment of the present invention comprises the steps of: when reproducing an audio signal that includes an object signal, receiving an audio bit-stream including object sound source information and an object audio signal; distinguishing between a first reproduction range object and a second reproduction range object on the basis of the object sound source information or reproduction range information; and rendering the first reproducing range object by a first method and rendering the second reproduction range object by a second method. | 03-03-2016 |
| 20160066119 | SOUND EFFECT PROCESSING METHOD AND DEVICE THEREOF - A sound effect processing method includes obtaining audio data in a scene; obtaining a display region and determining a target audio, the target audio including the audio data in the display region and the audio data in a region that is beyond the display region and within a threshold value; and playing the target audio. Audios in the area near the display region will be played if only the threshold value is positive, and discontinuous sound will not appear when the sounding object moves beyond and nearly the display region. In this solution, it's not necessary to process all audio data in the scene, instead of that, the audio playing region is controllable; thereby ensuring the sounding object can be sensed. | 03-03-2016 |
| 20160080887 | LOUDSPEAKER CONTROL - According to an example aspect of the present invention, an apparatus is provided comprising at least one processing core and at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to present a graphical user interface comprising a spatial representation and at least one element, the element being associated with at least one specific physical loudspeaker, and receive input concerning moving of the at least one element within the spatial representation, activate a sensory signal in a physical loudspeaker associated with the first element, determine a location in the spatial representation where the first element is moved to, and based at least in part on the determined location, assign a name to at least the first element and the physical loudspeaker associated with the first element. | 03-17-2016 |
| 20160088393 | AUDIO PLAYBACK DEVICE AND AUDIO PLAYBACK METHOD - An audio playback device which plays back an audio object including an audio signal and playback position information indicating a position in a three-dimensional space at which a sound image of the audio signal is localized, includes: at least one speaker array; a converting unit which converts playback position information to corrected playback position information which is information indicating a position of the sound image on a two-dimensional coordinate system based on a position of the at least one speaker array; and a signal processing unit which localizes the sound image of the audio signal included in the audio object according to the corrected playback position information. | 03-24-2016 |
| 20160088416 | AUDIO METADATA PROVIDING APPARATUS AND METHOD, AND MULTICHANNEL AUDIO DATA PLAYBACK APPARATUS AND METHOD TO SUPPORT DYNAMIC FORMAT CONVERSION - An audio metadata providing apparatus and method and a multichannel audio data playback apparatus and method to support a dynamic format conversion are provided. Dynamic format conversion information may include information about a plurality of format conversion schemes that are used to convert a first format set by an author of multichannel audio data into a second format that is based on a playback environment of the multichannel audio data and that are each set for corresponding playback periods of the multichannel audio data. The audio metadata providing apparatus may provide audio metadata including the dynamic format conversion information. The multichannel audio data playback apparatus may identify the dynamic format conversion information from the audio metadata, may convert the first format of the multichannel audio data into the second format based on the identified dynamic format conversion information, and may play back the multichannel audio data in the second format. | 03-24-2016 |
| 20160100270 | AUDIO SIGNAL PROCESSING APPARATUS AND AUDIO SIGNAL PROCESSING METHOD - An audio signal processing apparatus includes: an obtaining unit which obtains a stereo signal including an R signal and an L signal; a control unit which generates a processed R signal and a processed L signal by performing (i) a first process of convolving pairs of right- and left-ear head related transfer functions into the R signal so that a sound image of the R signal is localized at each of two or more different positions at a right side of a listener; and (ii) a second process of convolving pairs of right- and left-ear head related transfer functions into the L signal so that a sound image of the L signal is localized at each of two or more different positions at a left side of the listener; and an output unit which outputs the processed R signal and the processed L signal. | 04-07-2016 |
| 20160105757 | SYSTEMS AND METHODS FOR PROVIDING AUDIO TO A USER BASED ON GAZE INPUT - According to the invention, a method for providing audio to a user is disclosed. The method may include determining, with an eye tracking device, a gaze point of a user on a display. The method may also include causing, with a computer system, an audio device to produce audio to the user, where content of the audio may be based at least in part on the gaze point of the user on the display. | 04-14-2016 |
| 20160112819 | AUDIO REPRODUCTION SYSTEM AND METHOD FOR REPRODUCING AUDIO DATA OF AT LEAST ONE AUDIO OBJECT - An audio reproduction system for reproducing audio data of at least one audio object and/or at least one sound source of an acoustic scene in a given environment comprising:
| 04-21-2016 |
| 20160119735 | Orientation-Responsive Acoustic Array Control - An audio device includes a casing configured for operation in a first orientation and a second orientation different from the first orientation, an orientation input device disposed on the casing to detect an orientation of the casing relative to the direction of the force of gravity, and a plurality of acoustic drivers disposed on the casing and operable to form a plurality of acoustic interference arrays, each of which is associated with one of a plurality of audio channels. The acoustic drivers of the audio device operate in a first frequency range and modify at least one of the acoustic interference arrays in response to a change in the orientation detected by the orientation input device. | 04-28-2016 |
| 20160127849 | Program Used for Terminal Apparatus, Sound Apparatus, Sound System, and Method Used for Sound Apparatus - A sound apparatus includes: an acceptance unit that accepts an input of an input audio signal from outside; a communication unit that accepts from a terminal apparatus first direction information indicating a first direction, the first direction being a direction in which a virtual sound source is arranged; a position information generation unit that generates virtual sound source position information based on listening position information, the first direction information and boundary information, the listening position information indicating a listening position, the boundary information indicating a boundary of a space where the virtual sound source is arranged, the virtual sound source position information indicating a position of the virtual sound source on the boundary; a signal generation unit that imparts, based on loudspeaker position information, the listening position information and the virtual sound source position information, a sound effect to the input audio signal such that a sound is heard at the listening position as if the sound comes from the virtual sound source, to generate an output audio signal, the loudspeaker position information indicating positions of a plurality of loudspeakers; and an output unit that outputs the output audio signal to outside. | 05-05-2016 |
| 20160134986 | Method And System For Achieving Self-Adaptive Surround Sound - A method and a system for achieving a self-adaptive surround sound. The method comprises: recognizing specific positions of a room and a user in the room by using an object recognition technology, capturing focusing images of recognized objects by controlling a camera using a focusing control technology, and recording corresponding focusing parameters (S | 05-12-2016 |
| 20160142843 | AUDIO PROCESSOR FOR ORIENTATION-DEPENDENT PROCESSING - Audio processor having an input interface, a detector interface, a mixer and an output interface. The input interface receiving at least two input audio channels, each input audio channel being associated with a predetermined reproduction position of at least two loudspeakers on at least one loudspeaker axis. The detector interface receiving a position signal indicating an information on a position of the at least two loudspeakers with respect to an ear axis of a listener, wherein the ear axis and the at least one loudspeaker axis have an angle to each other, being greater than 0° and lower than 180°. The mixer mixing the at least two input audio channels to obtain the at least two output channels depending on the position signal. | 05-19-2016 |
| 20160150345 | METHOD AND APPARATUS FOR CONTROLLING SOUND USING MULTIPOLE SOUND OBJECT - Disclosed is a method and apparatus for controlling a sound to be provided to a user based on a multipole sound object, the method including setting a multipole sound object including at least one sound source, and controlling an attribute of a sound source included in the multipole sound object based on a direction and a relative distance between the multipole sound object and the user. | 05-26-2016 |
| 20160150346 | AUDIO SYSTEM AND METHOD - An audio system comprises at least one processor configured to receive multi-channel audio data and comprising a plurality of output channels. Control instructions are established based on preset positions of a plurality of speakers connectable to the output channels and further based on virtual positions of the channels of the multi-channel audio data. The channels of the multi-channel audio data are routed to the output channels based on the control instructions. | 05-26-2016 |
| 20160150347 | BASS MANAGEMENT FOR AUDIO RENDERING - Improved methods and devices for processing low-frequency audio data are provided. A bass extraction process may involve applying low-pass filters to received audio object signals, to produce extracted low-frequency audio signals. The bass extraction process may be performed prior to a process of rendering audio objects into speaker feed signals. A bass management process may involve routing the extracted low-frequency audio signals to the one or more speakers capable of reproducing low-frequency audio signals. | 05-26-2016 |
| 20160162255 | ELECTRONIC DEVICE - According to one embodiment, an electronic device includes a body and a display attached to the body configured to rotate between a state of covering a front surface of the body and a state of covering a back surface of the body, wherein the electronic device is placed in multiple configurations. An angle sensor measures an angle between the front surface and the display. A first sensor detects a configuration of the electronic device being placed. A processor corrects digital audio data based on the angle measured by the angle sensor and the configuration detected by the first sensor. Speakers output sound corresponding to the corrected digital audio data. | 06-09-2016 |
| 20160165374 | INFORMATION PROCESSING DEVICE AND METHOD, AND PROGRAM - The present technology relates to an information processing device and method for allowing a sound image to be localized with higher precision, and a program. When a target sound image is outside a mesh, the target sound image is moved in a vertical direction while a position in a horizontal direction of the target sound image remains fixed, so that the target sound image is present on a boundary of the mesh. Specifically, a mesh detection unit detects a mesh including a position in the horizontal direction of the target sound image. A candidate position calculation unit calculates a position that is a movement target of the target sound image, based on loudspeaker positions that are at opposite ends of an arc of the detected mesh that is a destination, and the position in the horizontal direction of the target sound image. As a result, the target sound image can be moved onto a boundary of the mesh. The present technology is applicable to a sound processing device. | 06-09-2016 |
| 20160174011 | AUTOMATIC AUDIO ADJUSTMENT BALANCE | 06-16-2016 |
| 20160182996 | Speaker Array Apparatus and Method for Setting Speaker Array Apparatus | 06-23-2016 |
| 20160183027 | METHOD FOR PROCESSING OF SOUND SIGNALS | 06-23-2016 |
| 20160192103 | WAVE FIELD SYNTHESIS SYSTEM - The present invention describes an apparatus comprising sound transducers based on the principle of wave field synthesis that can be compiled in a local design to form a freely scalable overall magnitude. The local design of the system ensures the free scalability. The computation complexity in the central system remains independent of the number of sound transducers in the overall system. In previously known apparatuses for reconstructing a sound field based on the principle of wave field synthesis, the demands on the central system rise with the number of sound transducers that it covers. For this reason too, the wave field synthesis is usually reduced to the horizontal plane of the listener, and the third dimension is lost in the reproduction of the sound events. The solution according to the invention allows the model-based approach of wave field synthesis to be also used to construct two-dimensional apparatuses of arbitrary magnitude from sound transducers based on the principle of wave field synthesis that are able to implement rapid changes of location for the virtual sound sources with the associated Doppler effects without artefacts. In this case, the requisite computation power can therefore be distributed locally because the volume of data to be transferred between the subsystems remains comparatively small. | 06-30-2016 |
| 20160192104 | AUDIO SIGNAL CORRECTION AND CALIBRATION FOR A ROOM ENVIRONMENT - Disclosed are an apparatus and method of processing an audio signal to optimize audio for a room environment. One example method of operation may include recording the audio signal generated within a particular room environment and processing the audio signal to create an original frequency response based on the audio signal. The method may also include creating at least two iterative filters based on at least two separate frequency ranges of the original frequency response, calculating an error difference between the frequency response modified by the at least two iterative filters and the original frequency response, and applying the error difference to the audio signal. | 06-30-2016 |
| 20160192105 | Processing Spatially Diffuse or Large Audio Objects - Diffuse or spatially large audio objects may be identified for special processing. A decorrelation process may be performed on audio signals corresponding to the large audio objects to produce decorrelated large audio object audio signals. These decorrelated large audio object audio signals may be associated with object locations, which may be stationary or time-varying locations. For example, the decorrelated large audio object audio signals may be rendered to virtual or actual speaker locations. The output of such a rendering process may be input to a scene simplification process. The decorrelation, associating and/or scene simplification processes may be performed prior to a process of encoding the audio data. | 06-30-2016 |
| 20160198260 | Playback Device Setting According To Threshold(s) | 07-07-2016 |
| 20160198282 | METHOD, SYSTEM AND ARTICLE OF MANUFACTURE FOR PROCESSING SPATIAL AUDIO | 07-07-2016 |
| 20160198283 | SOUND SYSTEM AND METHOD FOR CAPTURING AND REPRODUCING SOUNDS ORIGINATING FROM A PLURALITY OF SOUND SOURCES | 07-07-2016 |
| 20160205473 | DEVICE AND METHOD FOR DRIVING A SOUND SYSTEM AND SOUND SYSTEM | 07-14-2016 |
| 20160381486 | AUDIO SYSTEM AND METHOD OF EXTRACTING INDOOR REFLECTION CHARACTERISTICS - An audio system and method of extracting indoor reflection characteristics, the method including generating a detection signal based on an input signal and a modulation code, outputting a sound signal generated based on the detection signal through a plurality of speakers, measuring sound signals output through the plurality of speakers, or sound signals reflected by a wall of a space in which the plurality of speakers is installed, and extracting reflection characteristics of the space based on the measured sound signals and the modulation code, is disclosed. | 12-29-2016 |
| 20160381487 | AUDIO ENHANCEMENT - A signal processing module is configured to receive left and right channels of stereo input audio data and generate first and second channels of output audio data for first and second loudspeakers where the first and second loudspeakers have different frequency responses to one another. The signal processing module comprises an impulse emphasis block configured to emphasise impulsive sounds in the received audio in at least one of the first and second channels of output audio data. | 12-29-2016 |
| 20170238119 | APPARATUS AND METHOD FOR GENERATING OUTPUT SIGNALS BASED ON AN AUDIO SOURCE SIGNAL, SOUND REPRODUCTION SYSTEM AND LOUDSPEAKER SIGNAL | 08-17-2017 |
| 20180027349 | SOUND LOCALIZATION FOR USER IN MOTION | 01-25-2018 |
| 20180027350 | APPARATUS AND METHOD FOR DRIVING AN ARRAY OF LOUDSPEAKERS | 01-25-2018 |
| 20180027351 | OPTIMIZED VIRTUAL SCENE LAYOUT FOR SPATIAL MEETING PLAYBACK | 01-25-2018 |
| 20180027352 | System and Method for Adaptive Audio Signal Generation, Coding and Rendering | 01-25-2018 |
| 20190149938 | METHOD AND SYSTEM FOR SYNCHRONIZING VIBRO-KINETIC EFFECTS TO A VIRTUAL REALITY SESSION | 05-16-2019 |
