| Entries |
| Document | Title | Date |
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| 20080219484 | Apparatus and Method for Controlling a Plurality of Speakers Means of a Dsp - In a reproduction environment, speakers are grouped in directional groups, wherein the directional groups overlap with respect to the associated speakers so that speakers are present which have a speaker parameter having different values for the first directional group and the second directional group. A controller for controlling a plurality of speakers has a provider for providing a source position of an audio source, wherein the source position is located between the first directional group position and the second directional group position. The apparatus further has a calculator for calculating a speaker signal for the at least one speaker, based on the first parameter value for the speaker parameter and based on the second parameter value for the speaker parameter. | 09-11-2008 |
| 20080232616 | METHOD AND APPARATUS FOR CONVERSION BETWEEN MULTI-CHANNEL AUDIO FORMATS - An input multi-channel representation is converted into a different output multi-channel representation of a spatial audio signal, in that an intermediate representation of the spatial audio signal is derived, the intermediate representation having direction parameters indicating a direction of origin of a portion of the spatial audio signal; and in that the output multi-channel representation of the spatial audio signal is generated using the intermediate representation of the spatial audio signal. | 09-25-2008 |
| 20080240474 | Audio Output Apparatus, Audio Signal Output Adjusting Method, Audio Signal Output Adjusting Process Program, and the Like - The present invention provides an audio output apparatus, an audio signal output adjusting method, an audio signal output adjusting process program, and the like capable of preventing the user (listener) from making a complicated sound field setting even in the case where the position of a center speaker is changed. | 10-02-2008 |
| 20080253591 | Device Having a Point and a Spatial Sound Generating-Means for Providing Stereo Sound Sensation Over a Large Area - A device is described, having a first ( | 10-16-2008 |
| 20080267432 | Book with two speakers for generating a sound-field having two or more spatial dimensions - A book comprises two or more pages at least one of which is operable to visually display information about a subject, a first speaker mounted to a first page and operable to generate a sound, a second speaker mounted to a second page and operable to generate a sound, and an audio device operable to cause the first speaker to generate a first sound and the second speaker to generate a second sound, wherein the first and second sounds generate a sound-field having more than one spatial dimension. By generating a sound-field having more than one spatial dimension, the book can provide a reader an aural experience that is more accurate with the actual aural experience of the book's subject or aspect of the subject. Thus, the reader is more likely to accurately comprehend and appreciate the information that the book provides. | 10-30-2008 |
| 20080273721 | Method for spatially processing multichannel signals, processing module, and virtual surround-sound systems - Embodiments of a virtual surround-sound system and methods for simulating surround-sound are generally described herein. Other embodiments may be described and claimed. In some embodiments, a processing module may include spatial processor spatially processes surround-left and surround-right channel signals and front-left and front-right channel signals and combines the spatially-processed signals for providing to drivers of center speaker after crosstalk cancellation and combining with a center-channel signal. In some embodiments, the processing module may include circuitry to cause the spatial processor to refrain from spatially processing either the front-left and front-right channel signals when front-left and/or front-right speakers are connected. | 11-06-2008 |
| 20080279401 | STEREO EXPANSION WITH BINAURAL MODELING - A method for stereo expansion includes a step to remove the effects of actual relative speaker to listener positioning and head shadow and a step to introduce an artificial effect based on a desired virtual relative speaker to listener positioning using the inter-aural delay and the head-shadow models for the virtual speakers at desired angles relative to the listener thereby creating the impression of a widened and centered sound stage and an immersive listening experience. Known methods drown out vocals and add mid-range coloration thereby defeating equalization. The present method includes the integration of a novel binaural listening model and speaker-room equalization techniques to provide widening while not defeating equalization. | 11-13-2008 |
| 20080292120 | AUTOMATICALLY RECONFIGURABLE STEREO SPEAKER SYSTEM - An embodiment of an audio system comprises a speaker system configured to automatically change a coupling of an audio speaker from a first channel input to a second channel input if an external speaker is coupled to a first output. In embodiments of the invention, the speaker that connects to an audio source, such as an audio card of a personal computer (PC), automatically swaps channels based on the jack into which an external speaker is plugged. Thus, the reconfiguration of the audio system is automatic for the user in some embodiments, requiring nothing more from the user than selecting one of two jacks for use with an external speaker. | 11-27-2008 |
| 20080317267 | IMAGE/AUDIO PLAYBACK DEVICE OF MOBILE COMMUNICATION TERMINAL - Disclosed is an image/audio playback technology in a mobile communication terminal. According to the present invention, a single image is divided into two halves, i.e., left-half and right-half images, which are displayed on two mobile communication terminals, respectively. In addition, two mobile communication terminals can play left-side and right-side audio data, respectively, which compose stereo audio data, according to the relative locations of the two mobile communication terminals. | 12-25-2008 |
| 20090003634 | SPEAKER ARRAY APPARATUS, MICROPHONE ARRAY APPARATUS, AND SIGNAL PROCESSING METHODS THEREFOR - A speaker array apparatus capable of carrying out directivity control over a wide frequency range with reduced processing load. In the speaker array apparatus, an audio signal input from a signal input unit is divided into components by a signal divider unit to generate divided audio signals of different frequency ranges. The divided audio signals are amplified by amplifier units of a signal processing unit with gains set in accordance with window functions set to the amplifier units, and a sound emission unit emits sounds based on the amplified audio signals, whereby desired directional characteristics can be attained over a wide frequency range and an amount of calculation in the processing by the signal processing unit can be reduced. | 01-01-2009 |
| 20090010460 | Methods, modules, and computer-readable recording media for providing a multi-channel convolution reverb - The present invention provides a method of generating, on a data processing system, a multi-channel audio convolution reverb, said method comprising providing a plurality of impulse responses corresponding to a desired room to be simulated; receiving, in input, multi-channel audio sample data; performing, for each respective audio channel, same channel convolution operation on said respective audio channel with a corresponding impulse response; for each audio channel other than said respective audio channel, performing cross-channel convolution operation respectively with a corresponding cross-channel impulse response; performing combination of the results of the respective convolution operations; and outputting the combination (or summation) result as said output audio channel; wherein, in said performing said cross-channel convolution operation, wherein at least one convolution operation is performed corresponding to a shorter length of impulse response than at least one other convolution operation, preferably, said cross-channel convolution operation being performed only for an initial part of said cross-channel impulse response, said initial part being defined by a definition parameter. | 01-08-2009 |
| 20090034762 | ARRAY SPEAKER DEVICE - In an array speaker device, a plurality of speaker units output sounds having directivities, which are then reflected on a prescribed wall or a reflection board so as to form virtual speakers, wherein a digital signal processor independently drives the plurality of speaker units in such a way that sound beams produced in response to input audio signals are emitted toward prescribed focal point positions in the space. A CPU sets up the focal point positions, which normally vibrate as necessary. Thus, a broad listening range and sound localization are realized. | 02-05-2009 |
| 20090034763 | AUDIO DEVICE AND SOUND BEAM CONTROL METHOD - In an audio device equipped with a speaker array device aligning a plurality of speaker units, a sound beam is emitted towards a specific person in a main beam direction, thus realizing the listening of the audio contents with good sound quality. Other persons listen to the audio contents at off-beam positions; hence, leaked sound due to side lobes of the sound beam is transmitted to them with respect to an intermediate band and a low band, thus realizing the listening of the sound with an adequate volume. A high band is subjected to sharp beam control, wherein with respect to an intermediate volume or higher volume, high-frequency components are convoluted with the sound beam and are emitted with non-directivity. | 02-05-2009 |
| 20090041271 | Positioning of speakers in a 3D audio conference - A method, implemented by electronic data processing resources, for audio conference between conference participants via their respective terminals, the participants including at least one listener and at least one speaker, the method comprising, for at least said listener and for at least said speaker, the steps consisting in, estimating, as a function of a digital signal coming from a terminal of the speaker, at least one characteristic specific to said speaker, and determining, using said at least one estimated characteristic, a setpoint for positioning the speaker within a virtual space of the listener. | 02-12-2009 |
| 20090110218 | Dynamic equalizer - A dynamic equalization system | 04-30-2009 |
| 20090123006 | MULTI-MODE SOUND REPRODUCTION SYSTEM AND A CORRESPONDING METHOD THEREOF - There is provided a multi-mode sound reproduction system for reproduction of both stereophonic signals and multi-channel audio signals. The system includes a first pair of speakers positioned on a left portion of a user, the user being at a pre-determined facing, the first pair of speakers comprising a first primary speaker which is stackable with a first secondary speaker; a second pair of speakers positioned on a right portion of the user, the user being at the pre-determined facing, the second pair of speakers comprising a second primary speaker which is stackable with a second secondary speaker. The system may preferably include an arrangement of electronic components for controlling output of audio signals from the first pair and the second pair of speakers. It is preferable that in a first mode with the first and second pair of speakers in an unstacked configuration, the signals do not pass through the arrangement of electronic components prior to output. It is also preferable that in a second mode with each of the first and second pair of speakers in a stacked configuration, the arrangement of electronic components allows either stereophonic signals or multi-channel audio signals to be separately processed and reproduced in the first pair and the second pair of speakers. A corresponding method is also disclosed. | 05-14-2009 |
| 20090123007 | Virtual Sound Source Localization Apparatus - In a virtual sound source localization apparatus, a distance between two loudspeakers and a shortest distance between a line connecting the loudspeakers and a listening position are set beforehand, and a listener operates an operating section to localize a Cch sound source at an approximately center of the loudspeakers, thereby adjusting a sound balance of the loudspeakers. In addition, a controller calculates a difference in distance from the loudspeakers to the listening position, sets a delay amount of delay correctors such that sound emitted from the loudspeakers substantially reaches the listening position simultaneously, and adjusts sound output timing of the loudspeakers. In this way, even though the listening position is changed, the listener can operate the operating section to optimize a virtual surround effect. | 05-14-2009 |
| 20090136066 | STEREO IMAGE WIDENING - A stereo image can be widened by converting a stereo audio signal into a sum-difference audio signal, applying HRTF processing to the difference channel, and producing an output stereo audio signal. A stereo image can also be widened by receiving a stereo signal, converting the stereo signal into a sum-difference signal, applying HRTF processing to only the difference channel, upsampling the sum-difference signal, applying distortion, downsampling the sum-difference signal, and converting the sum-difference signal into a stereo signal. A system for widening a stereo image can comprise an input module configured to convert a stereo audio signal into a sum-difference audio signal, an HRTF module configured to apply HRTF processing to only the difference channel, a distortion module configured to apply a first distortion to the sum channel and a second different distortion to the difference channel, and an output module configured to produce an output stereo audio signal. | 05-28-2009 |
| 20090154736 | APPARATUS FOR GENERATING DIRECTIONAL SOUND AND MOBILE TERMINAL USING THE SAME - Provided are an apparatus for generating directional sound and a mobile terminal using the apparatus. The apparatus includes a signal controller for dividing and generating a reference signal into signals having three or more levels and phases, a first signal processor and a second signal processor for controlling a first signal and a second signal having levels and phases canceling each other among the signals generated from the signal controller, a central signal processor for controlling a signal having the same level and phase as the reference signal among the signals generated from the signal controller, a first speaker array and a second speaker array for converting signals output from the first signal processor and the second signal processor into sound signals and outputting the sound signals, and a central speaker for converting a signal output from the central signal processor into a sound signal and outputting the sound signal, and arranged between the first speaker array and the second speaker array. | 06-18-2009 |
| 20090220111 | DEVICE AND METHOD FOR SIMULATION OF WFS SYSTEMS AND COMPENSATION OF SOUND-INFLUENCING PROPERTIES - An aliasing correction in a wave field synthesis system is achieved by ascertaining the aliasing filter property specific for a virtual source. This aliasing filter property, which, for example, may be the aliasing frequency is ascertained by help of the source position information. This aliasing filter property is used for an adaptive anti-aliasing filter for adaptive filtering of the audio signal associated with the source or the component signals associated with the source. | 09-03-2009 |
| 20090262962 | Audio Apparatus - An audio apparatus inputs audio signals oriented toward a plurality of positions to speakers which output sound toward the respective positions with narrow directivity, including a table storage section which stores a table for registering the plurality of positions and volume information showing set sound levels of sounds directed toward the positions in correspondence with each other; a signal processing section for adjusting output levels of respective audio signals in accordance with set level control values; and a signal processing control section which reads the volume information for the plurality of positions by reference to the table and which sets, in the signal processing section, the level control values for the audio signals directed to the respective positions in accordance with the read information. | 10-22-2009 |
| 20090304213 | Stereophonic Sound Imaging - A method for reducing phase differences varying with frequency occurring at certain listening positions with respect to loudspeakers reproducing respective ones of multiple sound channels in a listening space, the phase differences occurring in a sequence of frequency bands in which the phase differences alternate between being predominantly in-phase and predominantly out-of-phase, comprises adjusting the phase in multiple frequency bands in which the multiple sound channels are out-of-phase at such listening positions. Such adjustment of phase includes the frequency bands in which the width of comb filtering pass bands and notches resulting from phase differences at such listening positions would be greater than or commensurate with the critical band width if the phase adjustment were not applied. The listening space may be the interior of a vehicle. | 12-10-2009 |
| 20090310802 | VIRTUAL SOUND SOURCE POSITIONING - Systems and methods for determining a virtual sound source position by determining an output for loudspeakers by the position of the loudspeakers in relation to a listener. The output of respective loudspeakers is generated using aural cues to give the listener knowledge of the virtual position of the virtual sound source. Both a gain in intensity and a delay are simulated. | 12-17-2009 |
| 20090316938 | LOUDSPEAKER APPARATUS AND SPEAKER SYSTEM - A loudspeaker apparatus includes a speaker array that has a plurality of speaker units which are arranged on a sound emitting surface of the speaker array, and emits sound beams on a plurality of channels, an angle sensing section that senses an angle change displaced from a previously set reference angle of the sound emitting surface, and an adjusting section that adjusts output angles of the sound beams in response to the angle change. | 12-24-2009 |
| 20100061574 | AUDIO SYSTEM AND SOUND FIELD CONTROLLER - An audio system comprises three or more loudspeaker units and a source of four or more audio channels, each loudspeaker unit comprising a monopole loudspeaker and a dipole loudspeaker, or a pistonically driven diaphragm loudspeaker and a resonant panel loudspeaker. The system may be arranged such that, for any position relative to a listener at which a loudspeaker unit is situated in use, sounds emitted in response to signals carried by the audio channel for which the designated intended output position corresponds most closely to the position of that loudspeaker unit are emitted from the monopole loudspeaker or pistonically driven diaphragm loudspeaker of that unit. If a loudspeaker unit is not situated approximately at such a position, then sounds emitted in response to signals carried by that channel may instead may be emitted from the dipole loudspeaker or resonant panel loudspeaker of that loudspeaker unit. | 03-11-2010 |
| 20100061575 | APPARATUS FOR REPRODUCTION OF STEREO SOUND - Apparatus for reproducing stereo sound having a housing ( | 03-11-2010 |
| 20100092014 | APPARATUS AND METHOD FOR GENERATING A NUMBER OF LOUDSPEAKER SIGNALS FOR A LOUDSPEAKER ARRAY WHICH DEFINES A REPRODUCTION SPACE - An apparatus for generating a number of loudspeaker signals for a loudspeaker array defining a reproduction space includes a prestage configured to generate a plurality of output audio signals while using one or more audio signals associated with one or more virtual positions, each output audio signal being associated to a loudspeaker position such that the plurality of output audio signals together replicate a reproduction of the input audio signal(s) at the virtual position(s), and a number of output audio signals being smaller than a number of loudspeaker signals. The apparatus further includes a main stage configured to obtain the plurality of output audio signals and further to obtain, as a virtual position for each output audio signal, the loudspeaker positions, and to generate the number of loudspeaker signals for the loudspeaker array such that the loudspeaker positions are replicated as a virtual sources by the loudspeaker array. | 04-15-2010 |
| 20100098274 | METHOD AND SYSTEM FOR CREATING THREE-DIMENSIONAL SPATIAL AUDIO - A system and method for rendering a virtual sound source using a plurality of speakers in an arbitrary arrangement includes expanding a wave field of the virtual sound source and a composite wave field generated by the plurality of speakers into multi-pole expansions, and equating the multi-pole expansions to each other to form a continuous equation. A set of constraints is applied to the continuous equation that minimize an error in a sweet spot region resulting in a linear system of equations. The linear system of equations is solved using singular-value decomposition to arrive at a pseudo-inverse representing a multi-dimensional transfer function between the virtual sound source and the plurality of speakers. The multi-dimensional transfer function is then applied to a signal of the virtual sound source to render the virtual sound source in the sweet spot region using the plurality of speakers in the arbitrary arrangement. | 04-22-2010 |
| 20100098275 | SYSTEM AND METHOD FOR GENERATING SOUND EVENTS - A system and method for recording and reproducing three-dimensional sound events using a discretized, integrated macro-micro sound volume for reproducing a 3D acoustical matrix that reproduces sound including natural propagation and reverberation. The system and method may include sound modeling and synthesis that may enable sound to be reproduced as a volumetric matrix. The volumetric matrix may be captured, transferred, reproduced, or otherwise processed, as a spatial spectra of discretely reproduced sound events with controllable macro-micro relationships. | 04-22-2010 |
| 20100104117 | CONSTANT-BEAMWIDTH LOUDSPEAKER ARRAY - A loudspeaker is provided for receiving an incoming electrical signal and transmitting an acoustical signal that is directional and has a substantially constant beamwidth over a wide frequency range. The loudspeaker may include a curved mounting plate that has curvature over a range of angles. The loudspeaker may include an array of speaker drivers coupled to the mounting plate. Each speaker driver may be driven by an electrical signal having a respective amplitude that is a function of the speaker driver's respective location on the mounting plate. The function may be a Legendre function. Alternatively, the loudspeaker may include a flat mounting plate. In this case, the respective electrical signal driving each speaker may have a phase delay that virtually positions the speaker onto a curved surface. | 04-29-2010 |
| 20100135510 | APPARATUS FOR GENERATING AND PLAYING OBJECT BASED AUDIO CONTENTS - Disclosed is an object based audio contents generating/playing apparatus. The object based audio contents generating/playing apparatus may include an object audio signal obtaining unit to obtain a plurality of object audio signals by recording a plurality of sound source signals, a recording space information obtaining unit to obtain recording space information with respect to a recording space of the plurality of sound source signals, a sound source location information obtaining unit to obtain sound location information of the plurality of sound source signals, and an encoding unit to generate object based audio contents by encoding at least one of the plurality of object audio signals, the recording space information, and the sound source location information, thereby enabling the object based audio contents to be played using at least one of a WFS scheme and a multi-channel surround scheme regardless of a reproducing environment of the audience. | 06-03-2010 |
| 20100142733 | Apparatus and Method for Generating Directional Sound - An apparatus and method for generating directional sound are provided to output sound towards a specific sound zone. The apparatus includes an internal loudspeaker array having at least one sound source and edge loudspeakers, each with a sound source having directivity, located at respective ends of the internal loudspeaker array. | 06-10-2010 |
| 20100158287 | Multi-directivity sound device - A sound producing apparatus with multi-directivity has two or more speakers to produce music or other types of audio sounds. Each of the speakers can produce audio sounds in a certain direction and at least one speaker is steerable so that its sound propagation direction relative to the others can be changed. Furthermore, one or more speakers can produce audio sounds in an adjustable angular range. One or more of the speakers can be dual-mode speakers, each of which can be operated as a wide-angle speaker or a narrow-angle speaker. With multi-directivity, it is possible to play one type of music in one direction and another type of music in another direction to suit the interests of the audience. The apparatus can be a mobile phone, an audio player, a digital or analog recorder/player, or the like. | 06-24-2010 |
| 20100284555 | SPEAKER DEVICE - A speaker device includes: an acoustic diaphragm; a vibration transfer member provided in a state of touching the acoustic diaphragm over a given length, which is configured to transfer vibration to the acoustic diaphragm; and an actuator configured to add vibration corresponding to an audio signal to be reproduced to the vibration transfer member to thereby transfer vibration to the acoustic diaphragm through the vibration transfer member and to generate sound. | 11-11-2010 |
| 20100303264 | APPARATUS AND METHOD FOR REPRODUCTION OF STEREO SOUND - Apparatus for reproduction of stereo sound from a two channel signal, having one or more first transducers ( | 12-02-2010 |
| 20100310099 | Electronic Accessory For An MP3 Player, And Method Of Providing The Same - In one embodiment, an electronic accessory configured to couple with an electronic device can comprise a housing and a spacer. The housing can comprise a body comprising a width, a length, and a thickness; and a neck extending from the body, the neck comprising a length less than the length of the body. The spacer can comprise an opening configured to be removably coupled around the neck. When the electronic accessory is fully electrically coupled to the electronic device through a docking end of the electronic device, the neck can be located between the body and the electronic device and the electronic device remains uncradled by the electronic accessory. Other embodiments and related methods are also disclosed herein. | 12-09-2010 |
| 20100316237 | METHOD AND APPARATUS FOR SIMPLIFIED INTERCONNECTION AND CONTROL OF AUDIO COMPONENTS OF AN HOME AUTOMATION SYSTEM - A method and apparatus for distributing stereo signal of an audio system integrated with an home automation system. The audio system is further integrated with intercom and video intercom including the controlling of the intercom communications and the home automation appliances via a network and the Internet. The stereo signals are encoded and distributed from a selector/encoder, via distributors or directly to speakers via at least one single twisted pair carrying the encoded signals multiplexed with serial signals and with microphone signals for communicating with the intercom or with e-station via the network or the Internet. The multiplexed signals are propagated via the same twisted pair that also feeds a constant current to the system devices or providing power via separated twisted pair. The speakers include wired or wireless remote control receivers and transmitters for propagating remote control signals. The system is flexible and can be connected in many configurations using fitted network cables and connectors. | 12-16-2010 |
| 20100316238 | Audio data receiving apparatus, audio data receiving method, and audio data transmission and receiving system - An audio data receiving apparatus includes a receiving unit configured to receive audio data sampled in accordance with a first clock signal; a synchronization unit configured to generate a second clock signal that is synchronized with the first clock signal by extracting clock components contained in the audio data; a demodulator configured to demodulate the audio data in accordance with the second clock signal; an oversampling unit configured to oversample the audio data demodulated by the demodulator by using a frequency higher than a frequency of the second clock signal; a clock generator configured to generate a third clock signal having a frequency nearly equal to the first clock signal; and a data output unit configured to output the audio data oversampled by the oversampling unit in accordance with the third clock signal generated by the clock generator. | 12-16-2010 |
| 20110002487 | Audio Channel Assignment for Audio Output in a Movable Device - A device that provides an audio output includes a speaker array mechanically fixed to the device. The speaker array includes at least three speakers. An orientation sensor detects an orientation of the speaker array and provides an orientation signal. An audio receiver receives a number of audio signals that include spatial position information. An audio processor is coupled to the speakers, the orientation sensor, and the audio receiver. The audio processor receives the audio signals and the orientation signal, and selectively routes the audio signals to the speakers according to the spatial position information and the orientation signal such that the spatial position information is perceptible to a listener. The orientation signal may be provided by a compass, an accelerometer, an inertial sensor, or other device. The orientation signal may be provided according to selection of display orientation, shape of touch input, image recognition of the listener, or the like. | 01-06-2011 |
| 20110013790 | Apparatus and Method for Multi-Channel Parameter Transformation - A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeaker configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters have an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration. | 01-20-2011 |
| 20110081032 | MULTICHANNEL AUDIO SYSTEM HAVING AUDIO CHANNEL COMPENSATION - A multichannel compensating audio system includes first and second compensation channels to psychoacoustically minimize deviations in a target response, to psychoacoustically move the physical position of a speaker and/or to psychoacoustically provide a substantially equal magnitude of sound from a plurality of speakers in a plurality of different listening positions. The first compensation channel may include a series connected delay circuit, a level adjuster circuit and a frequency equalizer circuit that generates a first compensated audio signal from a first audio signal. The second compensation channel may include a series connected delay circuit, a level adjuster circuit and a frequency equalizer circuit that generates a second compensated audio signal from a second audio signal. A first summing circuit is configured to receive at least the first audio signal and the second compensated audio signal and generate a first output signal for provision to a first speaker. A second summing circuit is configured to receive the second audio signal and the first compensated audio signal and generate a second output signal for provision to a second speaker. The first and second output signals may be output by the first and second speakers into a listening space and are acoustically perceived by a listener. | 04-07-2011 |
| 20110116665 | SYSTEM AND METHOD OF PROVIDING THREE-DIMENSIONAL SOUND AT A PORTABLE COMPUTING DEVICE - A method of providing three-dimensional (3D) sound at a wireless device is disclosed and may include detecting movement of a 3D virtual object within a display, determining a direction of the movement of the 3D virtual object, and transmitting sound from a 3D sound system that tracks the direction of the movement of the 3D virtual object. The method may further include selectively altering a phase of the sound as the 3D virtual object moves, selectively altering a volume of the sound as the 3D virtual object moves, selective altering a pitch of the sound as the 3D virtual object moves, selectively altering a tone of the sound as the 3D virtual object moves, or a combination thereof. | 05-19-2011 |
| 20110123054 | METHOD AND SYSTEM FOR DETERMINING RELATIVE POSITIONS OF MULTIPLE LOUDSPEAKERS IN A SPACE - A method for identifying and recording the relative positions of loudspeakers in an array with respect to one another using amplifiers connected on a network. | 05-26-2011 |
| 20110135124 | Apparatus and Method for Calculating Filter Coefficients for a Predefined Loudspeaker Arrangement - An apparatus for calculating filter coefficients for a predefined loudspeaker arrangement has a multi-channel renderer. The multi-channel renderer calculates a filter coefficient for each loudspeaker of a virtual loudspeaker arrangement, being different from the predefined loudspeaker arrangement, based on a property (e.g. position or type) of a virtual source of an audio object to be reproduced by the predefined loudspeaker arrangement. Further, the multi-channel renderer determines an adapted filter coefficient for a loudspeaker of the predefined loudspeaker arrangement based on one or more calculated filter coefficients of one or more loudspeakers of the different virtual loudspeaker arrangement. | 06-09-2011 |
| 20110164768 | ACOUSTIC USER INTERFACE SYSTEM AND METHOD FOR PROVIDING SPATIAL LOCATION DATA - An acoustic user interface system and method for tracking spatial location data. A location tracking unit provides location information with respect to an object in an environment. The location information may be further employed to synthesize a perception of three-dimensional spatial location data with respect to multiple objects in the environment. The acoustic user interface communicates the three-dimensional spatial location data via an auditory channel to a stereophonic device based on a human stereophonic perception of one or more acoustic signal variable correlated with a relative location of the objects in order to co-ordinate and communicate location information effectively. | 07-07-2011 |
| 20110176696 | METHOD AND SYSTEM FOR ENHANCING BASS EFFECT IN AUDIO SIGNALS - The quality of music output from audio systems is improved by simulating the effect of low frequency signals in the human ear. This thus allows listeners to perceive the lower frequency signals, even though the speakers may be incapable of providing such low frequency outputs. Method and systems provided for processing enhancing bass effect in audio signals. Said method and systems result in the bass enhancement being computationally less intensive. The bass effect enhancement techniques described are based on the response of sine and cosine transfer functions and on the directional independence of low frequency components. The human ear is unable to resolve directions from low frequency components. The bass effect enhancement technique alternatively is based on response of an exponential transfer function. | 07-21-2011 |
| 20110194712 | STEREOPHONIC WIDENING - Widening stereophonic response is achieved in sound reproduction systems with at least two loudspeakers. A stereo signal input is accessed, which includes multiple frequency components. The loudspeakers are close to each other. A frequency range of the frequency components is decorrelated, e.g., upon pre-processing the stereo signal. The sound reproduction system's stereophonic response is widened, based on the decorrelation. | 08-11-2011 |
| 20110206223 | Apparatus for Binaural Audio Coding - An apparatus configured to: determine at least one first channel audio signal phase value for a current audio frame; determine at least one second channel audio signal phase value for the current audio frame; calculate at least one current phase difference between the at least one first channel audio signal phase value and the at least one second channel audio signal phase value; and determine a time delay value dependent on the at least one current phase difference. | 08-25-2011 |
| 20110216924 | MULTI-ELEMENT DIRECTIONAL ACOUSTIC ARRAYS - An audio system that may be implemented in a television, that includes a plurality of directional arrays. The arrays may include a common acoustic driver and may be spaces non-uniformly. | 09-08-2011 |
| 20110216925 | VIRTUAL SURROUND FOR LOUDSPEAKERS WITH INCREASED CONSANT DIRECTIVITY - Various embodiments use combinations of different methods for creating virtual surround. Some of the methods used in various embodiments include: dipole beamforming, multi-stage arrays, transducer directionality, and enclosure shading. In general, each of these methods may operate over a specific frequency band in various embodiments. The use of multiple methods to create virtual sound can increase the virtual sound effect and better maintain sound quality compared to the use of a single method for creating virtual surround. Each method used to create virtual surround can be optimized for a specific system configuration based on factors such as the physical set-up of the transducers, the size and shape of the enclosure, and the input signal configuration. Various embodiments allow for an intensity difference to be created for a listener across a wide range of frequencies in order to produce constant directionality. | 09-08-2011 |
| 20110216926 | VIRTUAL SURROUND FOR LOUDSPEAKERS WITH INCREASED CONSTANT DIRECTIVITY - A speaker system includes a first array of transducers in a speaker enclosure and, and at least a second array of transducers in the speaker enclosure. The second array is a low-frequency array and the first array is a high-frequency array. The transducers in the first array are configured to have an operating frequency region covering at least the frequency ranges of the first array and the second array, and the transducers in the second are configured to have an operating frequency region covering at least the frequency ranges of the first array and the second array. The speaker system further includes an input port, and a controller operatively coupled with the input port. The controller is configured to provide an electronic-audio signal to the transducers such that the first array and the second array are tuned to different center frequencies and are a two stage dipole beamforming array. | 09-08-2011 |
| 20110235832 | Ambiophonic Headrest - A headrest provided with several loudspeakers which normally reproduce an ambiophonic sound experience. The headrest generally includes a central section provided with at least one loudspeaker, one side section provided with at least one loudspeaker and a second side section provided with at least one loudspeaker. The side sections are arranged on either side of the center section, and extend substantially perpendicularly towards the top relative to the center section. The headrest is arranged in a way so it can be connected to an audio signal source capable of generating several different audio signals. | 09-29-2011 |
| 20110243353 | Speaker Apparatus - A speaker apparatus includes: a first outputting unit that has a first speaker unit group in which a plurality of speaker units are arranged, and that outputs a supplied audio signal from the first speaker unit group as a sound which is directed in a direction; a second outputting unit that has a second speaker unit which is placed so that a front direction of the second speaker unit in which a frontage of the second speaker unit faces is different from a front direction of the first speaker unit group in which a frontage of the first speaker unit group faces, and that outputs a supplied audio signal from the second speaker unit as a sound; and a supplying unit that separates an input audio signal into an audio signal in a low-frequency band where a frequency band which is higher than a first frequency is attenuated, and an audio signal in a high-frequency band where a frequency band which is lower than a second frequency is attenuated, the supplying unit that supplies the audio signal in the low-frequency band to the first outputting unit, and that supplies the audio signal in the high-frequency band to the second outputting unit. | 10-06-2011 |
| 20120002827 | SIGNAL PROCESSING SYSTEM AND SIGNAL PROCESSING METHOD - A signal processing system includes a transmitter, a sensor, a plurality of processing apparatuses, a placement determiner and a signal distributor. The transmitter transmits a wireless signal. The sensor detects the wireless signal transmitted by the transmitter. The plurality of processing apparatuses receives corresponding signals and executes processing on the received signals. The placement determiner determines placement of the processing apparatuses based on the detection of the wireless signal performed by the sensor. The signal distributor distributes and sends signals to the processing apparatuses respectively, on a basis of the placement determined by the placement determiner. | 01-05-2012 |
| 20120045079 | Compact noise suppression circuit for small speakers - A compact noise suppression circuit for a small speaker system and having a circuit board with a left signal input connection and a right signal input connection and a ground connection, and further having a left speaker supply connection and a left speaker return connection, and a right speaker supply connection and a right speaker return connection, and further having a left bifilar coil and a right bifilar coil, and left and right coil connections on the circuit board, and means securing said left and right bifilar coils to respective coil connections on the circuit board. Also disclosed is a compact portable audio player system incorporating such a noise suppression circuit, and a noise suppression circuit for a mon-aural signal system | 02-23-2012 |
| 20120057731 | METHOD AND DEVICE FOR ACTIVATING A MEDIA PLAYER - A method and device for activating a media player enables efficient and convenient access to media files. The method includes determining that a wireless communication device is not operatively coupled to a network. An operative coupling of a speaker system to the wireless communication device is detected. The media player is then activated automatically in response to detecting the operative coupling of the speaker system to the wireless communication device. | 03-08-2012 |
| 20120093347 | ARRAY ELEMENT RIGGING COMPONENT, SYSTEM AND METHOD - Disclosed herein is a rigging component for connecting an array element in an array. The rigging component includes an elongate housing connectable to an array element; a connection link disposed within, and slideably extendible from, one end of the housing; a conduit extending into the housing from its opposite end, the conduit dimensioned to receive another connection link extending from an adjacent rigging component; and at least one latching device associated with the conduit for releasably retaining the other connection link within the conduit. Further disclosed is a system for connecting an array element in an array. The system comprises at least one rigging component having a connection link extendible to be locked at a single fixed distance and at least one rigging component having a connection link extendible to be locked at one of a plurality of fixed distances. Further disclosed is a method for connecting first and second array elements to each other. The method includes for each of the first and second array elements attaching at least one first rigging component having a connection link that is extendible to be locked at a single fixed distance to the array element; and attaching at least one second rigging component having a connection link that is extendible to be locked at one of a plurality of fixed distances to the array element. The method further comprises extending and locking at a selected fixed distance the connection link of the at least one second rigging component attached to the second array element; and extending and locking at the single fixed distance the connection link of the at least one first rigging component attached to the first array element; and bringing the first array element towards the second array element until corresponding first and second rigging components interconnect thereby to connect the first and second array elements to each other. | 04-19-2012 |
| 20120093348 | Generation of 3D sound with adjustable source positioning - A system for generating 3D sound with adjustable source positioning includes a first stage and a second stage, which is coupled to the first stage and to a speaker array that includes a plurality of speakers. The first stage is configured to position a plurality of virtual sound sources through a positioner output. The second stage is configured to generate a 3D signal for the speaker array based on the positioner output. The speaker array is configured to generate a 3D sound stage including the virtual sound sources based on the 3D signal. The first stage may be further configured to reposition the virtual sound sources. | 04-19-2012 |
| 20120250911 | AUDIO JACK WITH EMI SHIELDING - An audio jack for an audio plug for use in an electrical device, comprising a non-conductive enclosure having a front side and defining a cavity having an aperture within the front side for receiving the audio plug, the aperture having a first diameter, the cavity extending along a longitudinal axis; a conductive shielding formed from sheet metal folded over at least five sides of the enclosure including the front side, the shielding defining a shielding aperture centered on the enclosure aperture and having a second diameter larger than the first diameter; and a ground contact connected to the conductive shielding. | 10-04-2012 |
| 20120300962 | Solar Powered Wireless Bluetooth Stereo Speaker With connectivity To MP3 Player - A portable Bluetooth stereo speaker including a rechargeable battery coupled to power the Bluetooth stereo speaker, a solar panel coupled to the rechargeable battery for recharging the battery when the solar panel is exposed to sunlight, a capacitive touch panel coupled to the Bluetooth stereo speaker for controlling music, skip track or volume, and a Bluetooth phone or MP3 player wirelessly coupled to send their music to the stereo speaker. A power boost function is coupled to the Bluetooth stereo speaker which turns on automatically to supply extra power to the speakers for louder, clearer sound playback when connected to an external charger. | 11-29-2012 |
| 20120328134 | PERSONAL AUDIO EQUIPMENT - A personal audio device comprises a first speaker housing ( | 12-27-2012 |
| 20120328135 | SPEAKER SYSTEM AND METHOD OF OPERATION THEREFOR - A speaker system comprises a first speaker ( | 12-27-2012 |
| 20130003998 | Modifying Spatial Image of a Plurality of Audio Signals - A method comprising: modifying a sound stage produced by an input audio signal comprising two or more audio channels such that spatial room is relieved for one or more additional sound sources; and inserting said one or more additional sound sources in the relieved spatial room of the modified sound stage of the input audio signal without introducing spatial interference with the modified sound stage of the input audio signal. | 01-03-2013 |
| 20130022221 | SHAPING SOUND RESPONSIVE TO SPEAKER ORIENTATION - Techniques for shaping sound based on a speaker orientation are disclosed. In an embodiment, an audio data stream is obtained by a zone player having one or more speaker drivers, an orientation of the zone player is determined, and sound is reproduced by the zone player based on the orientation. The sound may be further shaped based on other states of the zone player in addition to orientation. The overall sound may be shaped from one zone player or from a collection of zone players. | 01-24-2013 |
| 20130064402 | Sound Systems - According to certain embodiments of the present disclosure, systems are disclosed that house and orient electro-acoustic drivers therein to simulate surround effects from a single enclosure. | 03-14-2013 |
| 20130101146 | COMPACT STEREO LOUDSPEAKER FOR WALL MOUNTING - Loudspeaker in a single cabinet arranged for wall mounting. The loudspeaker has two dipole loudspeaker units spaced apart and arranged to generate respective acoustic dipole signals. Reflectors, such as plane surfaces, are arranged to reflect sound from the respective dipole loudspeaker units. The reflectors and the dipole loudspeaker units are arranged such in relation to the cabinet that sound from one side of their diaphragms is directed substantially parallel with the wall and away from the cabinet, preferably to the sides. Sound from the opposite side of the diaphragms is directed substantially perpendicular to the wall and away from the wall. Such loudspeaker is suited in versions as a stereo sound bar, e.g. placed under a flat screen TV set. The loudspeaker provides a wide stereo image which can be experienced in a large area in a normal room due to reflections from side walls, and still the loudspeaker produced a stable centre image. The dipole units may be implemented as two-way systems, and a centrally placed woofer may be included to reproduce low frequency audio components in mono. | 04-25-2013 |
| 20130136281 | APPARATUS AND METHOD FOR CALCULATING FILTER COEFFICIENTS FOR A PREDEFINED LOUDSPEAKER ARRANGEMENT - An apparatus for calculating filter coefficients for a predefined loudspeaker arrangement has a multi-channel renderer. The multi-channel renderer calculates a filter coefficient for each loudspeaker of a virtual loudspeaker arrangement, being different from the predefined loudspeaker arrangement, based on a property (e.g. position or type) of a virtual source of an audio object to be reproduced by the predefined loudspeaker arrangement. Further, the multi-channel renderer determines an adapted filter coefficient for a loudspeaker of the predefined loudspeaker arrangement based on one or more calculated filter coefficients of one or more loudspeakers of the different virtual loudspeaker arrangement. | 05-30-2013 |
| 20130177185 | INFORMATION PROCESSING APPARATUS AND SPEAKER - There is provided an information processing apparatus including a speaker having speaker units of a speaker for a left channel that outputs left channel audio, a speaker for a right channel that outputs right channel audio, and a speaker for bass that outputs bass, wherein the speaker units are integrally formed with one another and the speaker is provided in a housing. | 07-11-2013 |
| 20130177186 | Wireless Audio Player and Speaker System - The present disclosure relates to an audio player and speaker system, and particularly, to a wireless audio player and speaker system. More particularly, the present disclosure relates to a portable, rechargeable, wireless boombox-style audio player, for playing audio from an external audio source, and including a wireless charging element for wirelessly recharging an external media device. | 07-11-2013 |
| 20130208926 | SURROUND SOUND SIMULATION WITH VIRTUAL SKELETON MODELING - A method for providing three-dimensional audio includes determining a world space ear position of a human subject based on a modeled virtual skeleton. The method further includes providing three-dimensional audio output to the human subject via an acoustic transducer array including one or more acoustic transducers. The three-dimensional audio output is configured such that channel-specific sounds appear to originate from corresponding simulated world speaker positions. | 08-15-2013 |
| 20130216070 | DATA STRUCTURE FOR HIGHER ORDER AMBISONICS AUDIO DATA - The invention is related to a data structure for Higher Order Ambisonics HOA audio data, which data structure includes 2D or 3D spatial audio content data for one or more different HOA audio data stream descriptions. The HOA audio data can have on order of greater than ‘3’, and the data structure in addition can include single audio signal source data and/or microphone array audio data from fixed or time-varying spatial positions. | 08-22-2013 |
| 20130243225 | NOISE REDUCTION APPARATUS AND AUDIO REPRODUCTION APPARATUS - A noise reduction apparatus includes: a speaker with a speaker unit held by holding means to make it possible to mix sounds emitted from front and rear of a vibration plate of the speaker; a microphone provided in an area where the sounds emitted from the front and rear of the vibration plate of the speaker are mixed and cancelled; and means for supplying a noise reduction audio signal obtained by phase-inverting an audio signal collected by the microphone to the speaker. | 09-19-2013 |
| 20130259275 | Stereo MP3 System - A stereo system for listening to music and other content is provided. The stereo system comprises a stereo and an MP3 device mounted within the stereo. The MP3 device stores and plays downloaded MP3 and other digital audio files while also providing full connectivity and compatibility wired or wireless with other devices. | 10-03-2013 |
| 20130308800 | 3-D Audio Data Manipulation System and Method - A 3-D audio data manipulation system providing a multi-dimensional audio field generated by a speaker array. The speaker array is driven by audio data and has a plurality of speakers, with each speaker having a unique physical position within the audio field. The system includes a 3-D mixing module having a plurality of fader channels. Each fader channels configured to receive input audio data. The input audio data selectable from a plurality of 3-D mixing module audio data input channels. Each fader channels further configured to provide a selectable sound intensity increase, or decrease, to the input audio data. The 3-D mixing module further provides a selectable plurality of 3-D mixing module audio data output channels for each of the plurality of fader channels. Any 3-D mixing module audio data output channel may be redirected back into a 3-D mixing module audio data input channel of the 3-D mixing module. Each of the plurality of 3-D mixing module audio data output tracks is then directed to a selectable speaker position, or plurality of speaker positions, within the speaker array to produce the audio field. | 11-21-2013 |
| 20130322664 | NOISE ELIMINATION CIRCUIT FOR AUDIO EQUIPMENT - A noise elimination circuit, includes an audio chipset configured to process an audio data file, a power supply unit, a loudspeaker, and a ground circuit. The power supply unit is connected to the sound card and provides power to the audio data file. The audio chipset generates an analog signal when the power supply unit stops providing power to the audio data file. The loudspeaker is connected to the audio chipset via a transmission line. The ground circuit is connected to the transmission line. The ground circuit is turned on to transmit the analog signal to ground when power supply unit stops providing power to the audio data file. | 12-05-2013 |
| 20130322665 | CONTEXT-AWARE VOICE GUIDANCE - A context-aware voice guidance method is provided that interacts with other voice services of a user device. The voice guidance does not provide audible guidance while the user is making a verbal request to any of the voice-activated services. Instead, the voice guidance transcribes its output on the screen while the verbal requests from the user are received. In some embodiments, the voice guidance only provides a short warning sound to get the user's attention while the user is speaking on a phone call or another voice-activated service is providing audible response to the user's inquires. The voice guidance in some embodiments distinguishes between music that can be ducked and spoken words, for example from an audiobook, that the user wants to pause instead of being skipped. The voice guidance ducks music but pauses spoken words of an audio book in order to provide voice guidance to the user. | 12-05-2013 |
| 20130322666 | METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNAL AND AUDIO PLAYBACK SYSTEM - A Method for processing an audio signal to use a beamforming technique in a three-dimensional (3D) space is disclosed. The method may include generating a beamforming signal on a horizontal plane related to a sound source in a three-dimensional (3D) space and modulating the beamforming signal to head for a listener in the 3D space from the sound source. | 12-05-2013 |
| 20130336504 | COMPACT STAND-ALONE STEREO LOUDSPEAKER - Stereo loudspeaker in a single cabinet (CB), such as a portable stereo loudspeaker. Two dipole loudspeaker units (DLL, DLR) generate respective acoustic dipole signals (L+, L−, R+, R−) in accordance with two channels on an input signal. The two dipole loudspeaker units (DLR, DLL) are closesly spaced and oriented such in relation to each other that their respective main axes are angled (α) 70°-110°, such as 80°-100°, preferably substantially 90°, relative to each other. By placing such stereo loudspeaker in a room in front of a wall (W), reflections (RL, RR) from one side of the two dipole units' (DLL, DLR) diaphragms will reach a listener and thus serve to provide, together with the direct sound (L, R) from the opposite side of the diaphragms, a stereo image in a wide area in the room. The dual dipole arrangement enables a one-cabinet stereo loudspeaker with a narrow design. The dipole arrangement may be a two-way system with dipole tweeter units and dipole mid range units. A mono low frequency unit (WF) may be included in the cabinet (CB). The stereo loudspeaker can be configurable to either play stereo or to play mono, i.e. the dipole units (DLL, DLR) playing the same signals. Hereby the loudspeaker can play one channel while a similar loudspeaker plays another channel, thus allowing such set of loudspeakers to be used in a traditional stereo setup. | 12-19-2013 |
| 20140064526 | METHOD FOR CONTROLLING A SPEAKER ARRAY TO PROVIDE SPATIALIZED, LOCALIZED, AND BINAURAL VIRTUAL SURROUND SOUND - A system and method for producing a binaural and localized audio signal to a user is provided. A signal processing method is provided for delivering spatialized sound in various ways using highly optimized inverse filters to deliver narrow localized beams of sound from the included speaker array. The inventive method can be used to provide private listening areas in a public space and provide spatialization of source material for a single user to create a virtual surround sound effect. In a binaural mode, a speaker array provides two targeted beams aimed towards the primary user's ears—one discrete beam for the left ear and one discrete beam for the right ear. In a privacy mode, a privacy zone could be created in which a primary audio beam would deliver a signal of interest to the user while secondary beams would be aimed at different angles to provide a masking noise. | 03-06-2014 |
| 20140079256 | ONE-PIECE ACTIVE ACOUSTIC LOUDSPEAKER ENCLOSURE CONFIGURABLE TO BE USED ALONE OR AS A PAIR, WITH REINFORCEMENT OF THE STERO IMAGE - The loudspeaker enclosure ( | 03-20-2014 |
| 20140098979 | BATTERY-POWERED STEREO SPEAKER ASSEMBLY HAVING POWER CONNECTION FOR CHARGING A HANDHELD DEVICE - The present invention provides a portable and compact battery-powered stereo speaker assembly that incorporates a DC to DC converter, which enables power from the internal stereo speaker assembly battery to charge an interconnected hand-held device, such as a smartphone, through a USB connection, thereby extending the time that the device can be used untethered from the AC power grid. A DC to DC converter enables the charging function can be implemented even if the speaker assembly is not connected to the AC power grid, and even if the battery of the stereo speaker assembly is not fully charged. The stereo speaker assembly also incorporates Bluetooth connectivity, a proprietary open wireless technology standard, developed by Ericsson in 1994, employing frequency-hopping spread spectrum radio transmissions in the ISM band from 2400-2480 MHz. | 04-10-2014 |
| 20140098980 | METHOD AND APPARATUS FOR CAPTURING AND RENDERING AN AUDIO SCENE - The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower than the first one. | 04-10-2014 |
| 20140119580 | 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 an information processing section, a first loudspeaker, and a second loudspeaker, predetermined music data composed of two channels is separated into first channel music data and second channel music data. A first sound source object associated with one of the first channel music data and the second channel music data, a second sound source object associated with the other one, and a virtual microphone are placed in a virtual 3-dimensional space. The reproduction volume of a sound reproduced from the first loudspeaker, and the reproduction volume of a sound reproduced from the second loudspeaker are determined based on the direction of the virtual microphone and the positional relationship between the virtual microphone and each of the first sound source object and the second sound source object. | 05-01-2014 |
| 20140119581 | System and Tools for Enhanced 3D Audio Authoring and Rendering - Improved tools for authoring and rendering audio reproduction data are provided. Some such authoring tools allow audio reproduction data to be generalized for a wide variety of reproduction environments. Audio reproduction data may be authored by creating metadata for audio objects. The metadata may be created with reference to speaker zones. During the rendering process, the audio reproduction data may be reproduced according to the reproduction speaker layout of a particular reproduction environment. | 05-01-2014 |
| 20140133681 | GAME SYSTEM, GAME PROCESS CONTROL METHOD, GAME APPARATUS, AND COMPUTER-READABLE NON-TRANSITORY STORAGE MEDIUM HAVING STORED THEREIN GAME PROGRAM - Sounds are reproduced from a plurality of sound source objects at the same timing. A sound volume and a localization of each sound when the sounds are received by a virtual microphone are calculated. Any one sound source object is determined as a weight assignment target on the basis of the sound volumes. Then, when the sounds reproduced simultaneously from the sound source objects are outputted as a single sound, weight assignment is performed such that the localization of the sound of the sound source object determined as the weight assignment target is more greatly reflected, and a localization of an outputted sound on the basis of the localization of each sound source object. On the basis of this localization, an audio signal is generated and outputted. | 05-15-2014 |
| 20140133682 | UPMIXING OBJECT BASED AUDIO - In some embodiments, a method for rendering an object based audio program indicative of a trajectory of an audio source, including by generating speaker feeds for driving loudspeakers to emit sound intended to be perceived as emitting from the source, but with the source having a different trajectory than that indicated by the program. In other embodiments, a method for modifying (upmixing) an object based audio program indicative of a trajectory of an audio object within a subspace of a full volume, to determine a modified program indicative of a modified trajectory of the object such that at least a portion of the modified trajectory is outside the subspace. Other aspects include a system configured to perform, and a computer readable medium which stores code for implementing, any embodiment of the inventive method. | 05-15-2014 |
| 20140193005 | Audio Speaker System with Semi-Shared Passive Radiators - A multi-channel stereo speaker system includes acoustically separated but mechanically connected chambers containing active drivers to reproduce sound for each channel, and a passive radiator for each chamber to help tune the frequency response of the chamber. Passive radiators are positioned and oriented so that their movements tend to cancel each other out. | 07-10-2014 |
| 20140219480 | Phase-Unified Loudspeakers: Parallel Crossovers - Complimentary crossovers that reduce phase distortion in loudspeaker systems, typically pairs, are described. In the fundamental embodiment, each loudspeaker possesses two drivers, a woofer and a tweeter. The “effective third-order” crossover on the right-hand loudspeaker remains “symmetric,” but the “effective third-order” crossover on the left-hand loudspeaker is rendered “asymmetric,” as described. Other embodiments apply this principle to higher crossover orders and greater numbers of drivers. This technology can be combined with other circuits like a Zobel, typically used for impedance correction. Some configurations of “phase-unified” loudspeakers require that a Zobel is applied to all drivers except the tweeter. Accordingly a rule combining effective crossover order and handedness is established. | 08-07-2014 |
| 20140219481 | MULTIPLE SOUND CHANNELS SPEAKER - A multiple sound channels speaker is disclosed herein and includes a first speaker, at least one second speaker, a sensing switch and an audio decoder. The second speaker is adjacent to the first speaker, and the sensing switch is disposed between the first speaker and the second speaker. The audio decoder is electrically connected to the sensing switch. When the second speaker and the first speaker are separated, the sensing switch outputs a signal to the audio decoder and the sound channels are switched. | 08-07-2014 |
| 20140219482 | FLAT PANEL ELECTRONIC DEVICE AND AUDIO PLAYING APPARATUS THEREOF - A flat panel electronic device and an audio playing apparatus thereof are provided. The audio playing apparatus comprises an audio generator, a plurality of speakers, a sensor and a controller. The audio generator is operable to generate a left channel audio and a right channel audio. The plurality of speakers are configured such that at least one pair of speakers is symmetrically disposed at a left side and a right side of the flat panel electronic device no matter how the flat panel electronic device is placed. The sensor is operable to detect a placed state of the flat panel electronic device in the installed state. The controller is operable to receive a detecting signal from the sensor so as to control the at least one pair of speakers to play the left channel audio and the right channel audio correspondingly according to the placed state of the flat panel electronic device. | 08-07-2014 |
| 20140270280 | AUDIO LOCALIZATION TECHNIQUES FOR VISUAL EFFECTS - Techniques for improved audio localization for visual effects are described. In one embodiment, for example, an apparatus may comprise a processor circuit and an audio management module, and the audio management module may be operable by the processor circuit to determine a position of a user interface element in a presentation area, determine an audio effect corresponding to the user interface element, determine audio location information for the audio effect based on the position of the user interface element, the audio location information defining an apparent position for the audio effect, and generate audio playback information for the audio effect based on the audio location information. Other embodiments are described and claimed. | 09-18-2014 |
| 20140270281 | SPATIAL AUDIO ENHANCEMENT PROCESSING METHOD AND APPARATUS - An audio processing system for processing a single channel audio signal includes a a processor configured to derive a synthetic difference component from the single channel audio input signal a filtering module configured to apply a first filter to the sum signal represented by the single channel signal and to apply a second filter to the synthetic difference signal; and a control module configured to crossfade to control the amount of the resulting audio signal effect by respectively scaling the sum signal and the difference signal. | 09-18-2014 |
| 20140270282 | MULTICHANNEL AUDIO CALIBRATION METHOD AND APPARATUS - A method comprising: generating at least one audio signal to be output by at least one speaker for a multi-speaker system; receiving at least two output signals, the at least two output signals provided by at least two microphones and based on the at least one acoustic wave output by the at least one speaker in response to the at least one audio signal; determining a directional component associated with the at least two output signals; and comparing the directional component with an expected location of the at least one speaker. | 09-18-2014 |
| 20140286511 | ACOUSTIC SIGNAL PROCESSING APPARATUS, ACOUSTIC SIGNAL PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM - HRTF on a side of the sound source on the acoustic signal. A crosstalk compensation processing unit performs, with respect to the first binaural signal and the second binaural signal, a crosstalk compensation for canceling out an acoustic transfer characteristic and a crosstalk. The present technology can be applied to, for example, an AV amplifier. | 09-25-2014 |
| 20140321678 | ELECTRONIC DEVICE AND METHOD FOR REPRODUCING SURROUND AUDIO SIGNAL - A method for reproducing a surround audio signal using an electronic device. The electronic device first establishes connections between the electronic device and other N−1 electronic devices, once the electronic device sets each of the N electronic devices to output one of the N channel signals according to one-to-one relationships, the electronic device controls a speaker of each of the N electronic devices to output the corresponding channel signal, to reproduce the surround audio signal. | 10-30-2014 |
| 20140321679 | METHOD FOR PRACTICAL IMPLEMENTATION OF SOUND FIELD REPRODUCTION BASED ON SURFACE INTEGRALS IN THREE DIMENSIONS - A method for 3D sound field reproduction from a first audio input signal using a plurality of loudspeakers distributed over a loudspeaker surface aiming at synthesizing a 3D sound field within a listening area in which none of the loudspeakers are located with the sound field radiating from a virtual source, includes the steps of calculating positioning filters using virtual source description data and loudspeaker description data according to a sound field reproduction technique derived from a surface integral, applying positioning filter coefficients to filter the first audio input signal to form second audio input signals. Loudspeakers are positioned for a sampling of the loudspeaker surface into second loudspeaker surfaces for which the loudspeaker spacing is smaller for loudspeakers located in the horizontal plane than for elevated loudspeakers. Loudspeaker weighting data are defined from the ratio between the area covered by second loudspeaker surfaces and the total area of the loudspeaker surface. The second audio input signals are modified according to the loudspeaker weighting data to form third audio input signals, which are fed into the loudspeakers to synthesize a sound field. | 10-30-2014 |
| 20150023532 | AUDIO PLAYBACK SYSTEM - An audio playback system includes a handheld device and a digital stereo set. By the handheld device, a control message is converted into a pulse signal. Moreover, the on/off states of a visible light emitting element are controlled according to first pulse signal, so that a visible light signal is generated. After the visible light signal is received by an optical sensor of the digital stereo set, the visible light signal is restored to the control message. After the control message is received by the digital stereo set, the digital stereo set performs a corresponding control action. | 01-22-2015 |
| 20150078594 | System and Method of Speaker Cluster Design and Rendering - A method of outputting audio in a teleconferencing environment includes receiving audio streams, processing the audio streams according to information regarding effective spatial positions, and outputting, by at least three speakers arranged in more than one dimension, the audio streams having been processed. The information regarding the plurality of effective spatial positions corresponds to a perceived spatial scene that extends beyond the speakers in at least two dimensions. In this manner, participants in the teleconference perceive the audio from the remote participants as originating at different positions in the teleconference room. | 03-19-2015 |
| 20150117685 | SYSTEM AND METHOD FOR AUTONOMOUS MULTI-TRACK AUDIO PROCESSING - A method, apparatus, and computer readable medium for mixing a plurality of audio signals within an audio mixing system are disclosed. The method comprises receiving a plurality of audio signals, extracting at least one audio feature from each of the plurality of audio signals, determining, for each of the audio signals, an associated processing control function in accordance with a plurality of the extracted audio features, processing each audio signal in accordance with each associated processing control function, and outputting the plurality of processed audio signals. | 04-30-2015 |
| 20150125010 | STEREO WIDENING OVER ARBITRARILY-CONFIGURED LOUDSPEAKERS - A system and method are disclosed for effective and simple stereo widening over arbitrarily-configured speakers and its real-time implementation. According to one embodiment, the system includes five processing units: (1) elevation processing unit; (2) side signal or difference signal processing unit; (3) center signal processing unit; (4) binaural signal processing unit; and (5) stereo limiter (to prevent the clipping) unit. Any of the five processing units may be included or omitted depending on the application. In general, embodiments of the present invention provide effective and simple stereo widening schemes with good audio quality results, but without having substantial requirements on the speakers' positional configuration. For example, the proposed schemes can apply to both symmetric and non-symmetric stereo loudspeakers. | 05-07-2015 |
| 20150131824 | METHOD FOR HIGH QUALITY EFFICIENT 3D SOUND REPRODUCTION - A method for spatial sound reproduction from a first audio input signal includes using a plurality of loudspeakers using a plurality of virtual loudspeakers over which the first audio input signal is panned for forming second audio input signals using source positioning data and virtual loudspeakers positioning data. The virtual loudspeakers are synthesized by modifying second audio input signals forming third audio input signals using virtual loudspeaker spatial filter coefficients that align the loudspeakers. The method includes the steps of extracting equalization filter coefficients using source positioning data and modifying the first audio input signals using equalization filter coefficients | 05-14-2015 |
| 20150131825 | AUDIO OUTPUT CONTROL METHOD AND APPARATUS - An audio output control method and apparatus using a wired/wireless communication system is provided. An audio output control method of an audio output device connected to at least one other audio output device according to the present disclosure includes converting specific audio data to at least one modified audio signal designated to the respective audio output devices, playing at least one of the modified audio signals through a channel designated to the specific audio data, and transmitting a remaining of the modified audio signals to the at least one other audio output device, wherein the modified audio signals include at least one of sound sources and channel characteristics of the specific audio data. | 05-14-2015 |
| 20150296290 | SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, MEASUREMENT METHOD, AND MEASUREMENT DEVICE - Provided is a signal processing device including an input unit inputting a sound collection signal of a sound of a user collected by user-surrounding microphones with inward directivity in a reproduction environment, an acoustic-signal processing unit obtaining a reproduction signal of a sound field in a measurement environment by performing a process on the sound collection signal based on a transfer function measured based on a result of sequential emission of predetermined sounds from speakers at positions set on a first closed surface with outward directivity in the measurement environment and collection of the sounds with microphones at positions on a second closed surface with outward directivity in the measurement environment and indicates how the sounds are transferred to the positions on the second closed surface, and a sound-emission control unit causing user-surrounding speakers to emit sound based on the reproduction signal with inward directivity in the reproduction environment. | 10-15-2015 |
| 20150312693 | PHASE-UNIFIED LOUDSPEAKERS: SERIES CROSSOVERS - Complimentary series crossover circuits to reduce phase distortion in loudspeaker groups, typically pairs, are described. In the fundamental embodiment, each loudspeaker possesses two drivers, a woofer and a tweeter. The “effective third-order” crossover on the right-hand loudspeaker remains “symmetric,” but the “effective third-order” crossover on the left-hand loudspeaker is rendered “asymmetric,” as described. Other embodiments apply this principle to higher crossover orders and greater numbers of drivers. This technology is applied to the series filter in 2.5-way, 3.5-way, etc. loudspeakers using otherwise conventional series/parallel crossovers. This technology can be combined with other circuits like a Zobel, typically used for impedance correction. Some configurations of “phase-unified” loudspeakers require that a Zobel is applied to all drivers except the tweeter. Accordingly a rule combining effective crossover order and handedness is established. | 10-29-2015 |
| 20150319525 | PORTABLE SOUND SYSTEM - A system for enhancing sound includes a support structure and one or more panels forming a panel structure. The panel structure defines a first and second portion of an oblong enclosure, both forming an approximated double ellipse profile, comprising a material having a sound reflective surface, and held by the support structure. The first portion extends between a first area proximate a first speaker driver and a second area proximate the listener. The second portion extends between a third area proximate a second speaker driver and a fourth area proximate the listener. The two portions are shaped such that sound waves emitted laterally from the first and second speaker drivers are reflected and focused toward the listener as spatially localized three-dimensional surround sound without electronically manipulating the sound signals and while reflectively reducing the effect of crosstalk. | 11-05-2015 |
| 20150319548 | DIGITAL SPEAKER SYSTEM AND ELECTRICAL CONNECTION METHOD FOR DIGITAL SPEAKER SYSTEM - A digital speaker system that effectively uses the characteristic of a signal processing circuit is constructed. A digital speaker system | 11-05-2015 |
| 20150326960 | Miniature low profile speaker and case assembly - A low-profile speaker and case assembly includes a case configured to house a handheld electronic device, a digital signal processor attached to an interior surface of the case and coupled to an amplifier. The digital processor is configured to receive audio signals from the handheld electronic device, and to output audio signals to the amplifier. A battery is attached to an interior surface of the case. The battery supplies power to the digital signal processor and amplifier, and a low-profile speaker driver arranged within the case. The low-profile speaker is connected to the amplifier and powered by the battery to produce high quality audio outputs. | 11-12-2015 |
| 20150334502 | SOUND SIGNAL DESCRIPTION METHOD, SOUND SIGNAL PRODUCTION EQUIPMENT, AND SOUND SIGNAL REPRODUCTION EQUIPMENT - Provided is a sound signal description method corresponding to a format of “sound signals to compose a multi-layered sound field”, as well as a sound signal production equipment and a sound signal reception equipment which correspond to the sound signal description method. | 11-19-2015 |
| 20150341724 | NEW METHOD OF WIRELESS TRANSMISSION OF DIGITAL AUDIO - A method of wireless communication of data sets includes: transmitting a first data set of a first data category from a transmitter for reception by a receiver; and re-transmitting the first data set at a time after the first data set is transmitted if there is an absence of an acknowledgement of receipt from the receiver, or transmitting a second data set of a second data category that is different from the first data category from the transmitter to the receiver at the time if there is a presence of the acknowledgement of receipt from the receiver. | 11-26-2015 |
| 20150382124 | DIRECTIONAL AUDIO NOTIFICATION - Various embodiments related to providing an audio notification to a listener via a dual-mode speaker system are provided. In one embodiment, a computing device and associated dual-mode speaker system are configured to be selectively operable in a non-directional broadcast mode and a directional broadcast mode. Based on an audio notification condition, it is determined that the audio notification is to be delivered using the directional broadcast mode. The dual-mode speaker system is then used to broadcast the audio notification to the listener using the directional broadcast mode. | 12-31-2015 |
| 20160007135 | AUDIO CHANNEL CONTROL CIRCUIT - An audio channel control circuit includes a filter module and a determining module. The audio channel control circuit receives a first audio signal and a second audio signal from an audio device. The first audio signal loads a first carrier signal, while the second audio signal loads a second carrier signal. The first carrier signal and the second carrier signal have different phases. The filter module filters the first audio signal and the second audio signal, separating the first carrier signal from the first audio signal and the second carrier signal from the second audio signal. According to the phases of the first carrier signal and the second carrier signal, the determining module chooses a speaker of the left audio channel or a speaker of the right audio channel to output the first audio signal or the second audio signal. | 01-07-2016 |
| 20160021480 | ROBUST CROSSTALK CANCELLATION USING A SPEAKER ARRAY - An audio receiver that performs crosstalk cancellation using a speaker array is described. The audio receiver detects the location of a listener in a room and processes a piece of sound program content to be output through the speaker array using one or more beam pattern matrices. The beam pattern matrices are generated according to one or more constraints. The constraints may include increasing a right channel and decreasing a left channel at the right ear of the listener, increasing a left channel and decreasing a right channel at the left ear of the listener, and decreasing sound in all other areas of the room. These constraints cause the audio receiver to beam sound primarily towards the listener and not in other areas of the room such that crosstalk cancellation is achieved with minimal effects due to changes to the frequency response of the room. Other embodiments are also described. | 01-21-2016 |
| 20160127831 | HONEYCOMB SPEAKER SYSTEM - A hexagonal speaker with six edges (sides) and four drivers. A pair of drivers is embedded on adjacent edges and another pair of drivers is embedded on the opposite edges, while two opposing edges in between each pair of drivers do not have a driver. A down-firing subwoofer is located on the bottom of the speaker. The speaker is raised off the ground so that the subwoofer can output sound without touching the ground. An air vent tube is also located on the bottom of the speaker adjacent to the subwoofer. | 05-05-2016 |
| 20160173987 | Systems And Methods For Independent And Control-Isolated Audio Processing (ICIAP) | 06-16-2016 |
| 20160182697 | SMART DEVICE CASE WITH SOUND SPEAKER | 06-23-2016 |
| 20160255437 | LED LIGHTING DEVICE AND SPEAKER | 09-01-2016 |
| 20160381482 | EXTRACTING DECOMPOSED REPRESENTATIONS OF A SOUND FIELD BASED ON A FIRST CONFIGURATION MODE - In general, techniques are described for obtaining decomposed versions of spherical harmonic coefficients. A device comprising a processor and a memory may be configured to perform the techniques. The processor may obtain a non-zero set of coefficients of a vector representative a distinct component of a sound field. The vector may have been decomposed from a plurality of spherical harmonic coefficients that describe the sound field. The processor may also obtain one of a plurality of configuration modes by which to extract the non-zero set of coefficients of the vector, where the one of the configuration modes indicates that the coefficients include all of the coefficients except for at least one of the coefficients. The processor may further extract the coefficients of the vector based on the obtained one of the configuration modes. The memory may be configured to store the non-zero set of the coefficients of the vector. | 12-29-2016 |
| 20180027327 | METHOD AND SYSTEM FOR AUDIO BROADCAST USING LIGHTING DEVICES | 01-25-2018 |
| 20180027329 | MOBILE TERMINAL | 01-25-2018 |
| 20190149923 | SPEAKER DEVICE | 05-16-2019 |
