Pseudo Stereophonic Patents (Class 381/17)
  • Patent number: 11900955
    Abstract: An apparatus for generating loudspeaker signals includes an object metadata processor configured to receive metadata, to calculate a second position of the audio object depending on the first position of the audio object and on a size of a screen if the audio object is indicated in the metadata as being screen-related, to feed the first position of the audio object as the position information into the object renderer if the audio object is indicated in the metadata as being not screen-related, and to feed the second position of the audio object as the position information into the object renderer if the audio object is indicated in the metadata as being screen-related. The apparatus further includes an object renderer configured to receive an audio object and to generate the loudspeaker signals depending on the audio object and on position information.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: February 13, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Simone Fueg, Jan Plogsties, Sascha Dick, Johannes Hilpert, Julien Robilliard, Achim Kuntz, Andreas Hoelzer
  • Patent number: 11895479
    Abstract: A method for steering binauralization of audio is provided. The method comprises steps of: receiving (410) an audio input signal, calculating (430) a confidence value indicating a likelihood that a current audio frame of the audio input signal comprises binauralized audio; determining (450) a state signal based on the confidence value; determining (460) a steering signal, based on the first confidence value, the state signal and an energy value of the audio frame; and generating (470) an audio output signal with steered binauralization by processing the audio input signal according to the steering signal.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: February 6, 2024
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Qingyuan Bin, Libin Luo, Ziyu Yang, Zhiwei Shuang, Xuemei Yu, Guiping Wang
  • Patent number: 11895485
    Abstract: A sound signal processing method includes: obtaining a sound signal; obtaining impulse response data that was measured in a predetermined space before the sound signal is obtained; generating an early reflected sound control signal not including a reverberant sound by convolving impulse response data of an early reflected sound among the obtained impulse response data into the obtained sound signal.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: February 6, 2024
    Assignee: YAMAHA CORPORATION
    Inventors: Takayuki Watanabe, Dai Hashimoto
  • Patent number: 11889287
    Abstract: An electronic device according to an embodiment disclosed herein may include a sensor, a short-range communication module, and a processor. The processor is configured to generate first rotation angle information, establish a connection to the external electronic device, receive, from the external electronic device, second rotation angle information and check data uniquely assigned to the second rotation angle information, configure a first time stamp based on the check data and a time of receiving the second rotation angle information, configure a second time stamp based on the check data and a time of correcting the second rotation angle information, compare the first time stamp and the second time stamp to calculate a delay time, correct the second rotation angle information based on the delay time, and generate posture information based on the first rotation angle information and the corrected second rotation angle information.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: January 30, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinik Kim, Namjoon Park
  • Patent number: 11887608
    Abstract: Some disclosed methods involve encoding or decoding directional audio data. Some encoding methods may involve receiving a mono audio signal corresponding to an audio object and a representation of a radiation pattern corresponding to the audio object. The radiation pattern may include sound levels corresponding to plurality of sample times, a plurality of frequency bands and a plurality of directions. The methods may involve encoding the mono audio signal and encoding the source radiation pattern to determine radiation pattern metadata. Encoding the radiation pattern may involve determining a spherical harmonic transform of the representation of the radiation pattern and compressing the spherical harmonic transform to obtain encoded radiation pattern metadata.
    Type: Grant
    Filed: April 23, 2022
    Date of Patent: January 30, 2024
    Assignees: DOLBY INTERNATIONAL AB
    Inventors: Nicolas R. Tsingos, Mark R. P. Thomas, Christof Fersch
  • Patent number: 11875774
    Abstract: Provided is a sound image localizing device, a sound image localizing method, and a program that enable a virtual speaker to reproduce sound in a wide frequency band with high sound quality. A sound image localizing device 10 includes a directivity control filter design unit 11 that computes a directivity control filter from a desired directional characteristic, a filter coefficient correction unit 12 that corrects the directivity control filter computed by the directivity control filter design unit 11, and a convolution operation unit 13 that computes an output acoustic signal by performing convolution of an input acoustic signal and the directivity control filter corrected by the filter coefficient correction unit 12.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: January 16, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kenta Imaizumi, Kimitaka Tsutsumi, Atsushi Nakadaira
  • Patent number: 11875804
    Abstract: A decoder for generating an audio output signal having one or more audio output channels is provided, having a receiving interface for receiving an audio input signal having a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated, further having a signal processor for generating the one or more audio output channels of the audio output signal, configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information, and configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. One or more by-pass audio object signals are employed for generating the audio output signal. Moreover, an encoder is provided.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: January 16, 2024
    Inventors: Jouni Paulus, Sascha Disch, Harald Fuchs, Bernhard Grill, Oliver Hellmuth, Adrian Murtaza, Falko Ridderbusch, Leon Terentiv
  • Patent number: 11871207
    Abstract: A method for acoustic damping of sound clips includes identifying an audio clip for a location of a user in an environment and fragmenting the audio clip into a plurality of sound clips. The method further includes, responsive to determining at least one sound clip from the audio clip requires acoustic damping, performing the acoustic damping on the at least one sound clip, where a damping ratio for the at least one sound clip is altered. The method further includes responsive to determining to stitch the plurality of sound clips, stitching the plurality of sounds clips to form the audio clip, where the plurality of sound clips includes the at least one sound clip with the acoustic damping. The method further includes displaying a visual representation of the audio clip with the plurality of sound clips.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: January 9, 2024
    Assignee: International Business Machines Corporation
    Inventors: Tushar Agrawal, Christian Compton, Jeremy R. Fox, Sarbajit K. Rakshit, Clement Decrop
  • Patent number: 11871197
    Abstract: A multifunctional earphone system for sports activities is described which comprises the following: a first apparatus configured to be carried in one of a user's ears, the first apparatus comprising a first data communication unit and a first loudspeaker, and a second apparatus configured to be carried in the user's other ear, the second apparatus comprising a second data communication unit and a second loudspeaker, wherein at least one of the first apparatus and the second apparatus comprises a sensor unit and a data processing unit, wherein the data processing unit is configured to generate performance data based on measurement data acquired by the sensor unit, wherein the first apparatus further comprises a signal processing unit configured to generate a binaural audio signal based on the performance data, the binaural audio signal comprising a first signal part to be output by the first loudspeaker and a second signal part to be output by the second loudspeaker, and wherein the first data communication un
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: January 9, 2024
    Assignee: BRAGI GMBH
    Inventor: Nikolaj Hviid
  • Patent number: 11856148
    Abstract: Methods and apparatus assist listeners in distinguishing between electronically generated binaural sound and physical environment sound while the listener wears a wearable electronic device that provides the binaural sound to the listener. The wearable electronic device generates a visual alert or audio alert when the electronically generated binaural sound occurs.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: December 26, 2023
    Inventors: Glen A. Norris, Philip Scott Lyren
  • Patent number: 11849302
    Abstract: To provide a realistic video and audio to a passenger of a moving body, an output control device includes: a position and orientation identifying section which identifies a real position and a real orientation; a reading section which reads virtual space data; a virtual position determining section which determines a virtual position and a real orientation according to the real position and the real orientation; a display control section which controls a display to display, based on the virtual position, the virtual orientation, and a position where the display (4) is provided, an image of a partial region or a part of an object in a virtual space; and an audio output control section which controls, based on the virtual orientation and a positional relationship between the virtual position and an audio source object, a position of a stereo image formed by audio outputted from a speaker.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: December 19, 2023
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Ryogo Yoshimura, Ryo Kodama
  • Patent number: 11849303
    Abstract: An audio rendering system includes a processor that combines audio input signals with personalized spatial audio transfer functions preferably including room responses. The personalized spatial audio transfer functions are selected from a database having a plurality of candidate transfer function datasets derived from in-ear microphone measurements for a plurality of individuals. Alternatively, the personalized transfer function datasets are derived from actual in-ear measurements of the listener. Foreground and background positions are designated and matched with transfer function pairs from the selected dataset for the foreground and background direction and distance. Two channels of input audio such as voice and music are processed. When a voice communication such as a phone call is accepted the music being rendered is moved from a foreground to a background channel corresponding to a background spatial audio position using the personalized transfer functions.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: December 19, 2023
    Assignee: CREATIVE TECHNOLOGY LTD.
    Inventors: Wong Hoo Sim, Teck Chee Lee
  • Patent number: 11832078
    Abstract: An apparatus configured to: determine, for two or more speaker channel audio signals, at least one spatial audio parameter for providing spatial audio reproduction; determine, between the two or more speaker channel audio signals, at least one coherence parameter, wherein the at least one coherence parameter is configured to provide at least one inter-channel coherence information between the two or more speaker channel audio signals for respective ones of at least two frequency bands of the two or more speaker channel audio signals; determine at least one value based, at least partially, on the at least one coherence information, wherein the at least one value is configured to indicate at least one information associated with the at least one inter-channel coherence information; and transmit the at least one spatial audio parameter and the at least one determined value.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: November 28, 2023
    Assignee: Nokia Technologies Oy
    Inventors: Mikko-Ville Laitinen, Lasse Laaksonen, Juha Vilkamo, Tapani Pihlajakuja
  • Patent number: 11832080
    Abstract: An apparatus configured to: determine, for two or more microphone audio signals, a plurality of spatial audio parameters for providing spatial audio reproduction, wherein the plurality of spatial audio parameters are associated with respective frequency bands of at least two frequency bands of the two or more microphone audio signals; determine at least one coherence parameter associated with a sound field, wherein the sound field is associated with the two or more microphone audio signals; determine at least one audio signal based on the two or more microphone audio signals; and enable the spatial audio reproduction based on the plurality of spatial audio parameters, the at least one coherence parameter, and the at least one determined audio signal.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: November 28, 2023
    Assignee: Nokia Technologies Oy
    Inventors: Mikko-Ville Laitinen, Juha Vilkamo
  • Patent number: 11825291
    Abstract: Embodiments relate to binaural spatialization of more than two sound sources on two audio channels of an audio system. Sound signals each emitted from a corresponding sound source are collected, and a respective virtual position within an angular range of a sound scene is assigned to each sound source. Multi-source audio signals are generated by panning each sound signal according to the respective virtual position. A first multi-source audio signal is spatialized to a first direction to generate a first left signal and a first right signal. A second multi-source audio signal is spatialized to a second direction to generate a second left signal and a second right signal. A binaural signal is generated using the first left signal, the second left signal, the first right signal, and the second right signal. The binaural signal is such that each sound source appears to originate from its respective virtual position.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: November 21, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Philip Robinson, Sebastian Elliot Chafe
  • Patent number: 11812250
    Abstract: A first subwoofer may be configured to output multimedia content in synchrony with at least one other playback device and a second subwoofer. The first subwoofer may, based on a received indication of an acoustic characteristic of the at least one other playback device, determine a crossover frequency of (i) the first subwoofer and the second subwoofer and (ii) the at least one other playback device. After determining the crossover frequency, the first subwoofer may output a first tone set and a second tone set in synchrony with the second subwoofer and the at least one other playback device, and after outputting the first tone set and the second tone set, receive, from a controller device, an indication of a selected one of the first tone set or the second tone set. Based on the selected tone set, the first subwoofer may adjust a phase setting of the first subwoofer.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: November 7, 2023
    Assignee: Sonos, Inc.
    Inventors: Neil Griffiths, Mike Chamness
  • Patent number: 11803348
    Abstract: An electronic device may include control circuitry that allows a user to listen to audio playing from an external speaker in the environment from the user's personal speaker device such as a pair of headphones, earbuds, or a personal loudspeaker. In response to receiving user input, the control circuitry may gather audio input from the environment with a microphone. The control circuitry may process the detected audio input to identify what audio track is currently playing from the external speaker and to determine which part of the audio track is currently playing. The control circuitry may then start playing the identified audio track from the user's personal speaker device in sync with the audio track playing from the external speaker. The electronic device may search music streaming platforms, public radio station information, and other public music content sources to anticipate and buffer upcoming songs.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: October 31, 2023
    Assignee: Apple Inc.
    Inventor: Paul G. Puskarich
  • Patent number: 11805377
    Abstract: A measurement device according to an embodiment includes: a base portion (10), a plurality of pillars (20, 30, 40) in an arc shape not directly facing one another having one end of each connected to the base portion and the other end of each coupled by a coupling portion (60), and a plurality of speakers (70) provided on each of the pillars and having distances to a certain location substantially uniform.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: October 31, 2023
    Assignee: SONY CORPORATION
    Inventor: Koyuru Okimoto
  • Patent number: 11798569
    Abstract: In general, techniques are described for obtaining audio rendering information from a bitstream. A method of rendering audio data includes receiving, at an interface of a device, an encoded audio bitstream, storing, to a memory of the device, encoded audio data of the encoded audio bitstream, parsing, by one or more processors of the device, a portion of the encoded audio data stored to the memory to select a renderer for the encoded audio data, the selected renderer comprising one of an object-based renderer or an ambisonic renderer, rendering, by the one or more processors of the device, the encoded audio data using the selected renderer to generate one or more rendered speaker feeds, and outputting, by one or more loudspeakers of the device, the one or more rendered speaker feeds.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 24, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Moo Young Kim, Nils Günther Peters
  • Patent number: 11792481
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for playback using pre-processed profile information and personalization. Example apparatus disclosed herein include a synchronizer to, in response to receiving a media signal to be played on a playback device, access an equalization (EQ) profile corresponding to the media signal; an EQ personalization manager to generate a personalized EQ setting; and an EQ adjustment implementor to modify playback of the media signal on the playback device based on a blended equalization generated based on the EQ profile and the personalized EQ setting.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: October 17, 2023
    Assignee: Gracenote, Inc.
    Inventors: Robert Coover, Cameron Aubrey Summers, Joseph Renner, Markus Cremer, Warren Mansfield
  • Patent number: 11792595
    Abstract: Examples disclosed herein include a speaker. The speaker may include a group of microphones and a processor. The processor may determine a first speaker-channel identifier for a multi-speaker system at least partially responsive to a first tone captured at the group of microphones. The processor may also determine a position of a source of the captured first tone relative to the speaker at least partially responsive to position information derived from the captured first tone. The processor may also determine a second speaker-channel identifier at least partially responsive to the first speaker-channel identifier and the position of the source of the captured first tone. The processor may also determine speaker settings at least partially responsive to the second speaker-channel identifier. Related devices, systems and methods are also disclosed.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: October 17, 2023
    Assignee: Microchip Technology Incorporated
    Inventor: Tik Man Lee
  • Patent number: 11785413
    Abstract: Media content playback is based on an identified geographic location of a sound source. A geolocation of a target venue is determined. A first geolocation of a media playback device is determined. An indication that the media playback device is within a threshold distance of the target venue is received. Media content associated with the target venue is transferred to the media playback device, wherein one or more characteristics of the media content are dynamically modified to simulate audio originating from the target device. The one or more characteristics of the media content can include audio content characteristics associated with a timing filter, a loudness filter, and a timbre filter.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: October 10, 2023
    Assignee: Spotify AB
    Inventor: Rachel Bittner
  • Patent number: 11785408
    Abstract: A method for spatial audio signal processing, including determining, for two or more playback audio signals, at least one spatial audio parameter for providing spatial audio reproduction; determining between the two or more playback audio signals at least one audio signal relationship parameter, the at least one audio signal relationship parameter being associated with a determination of inter-channel signal relationship information between the two or more playback audio signals and for at least two frequency bands, such that the two or more playback audio signals are configured to be reproduced based on the at least one spatial audio parameter and the at least one audio signal relationship parameter.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 10, 2023
    Assignee: Nokia Technologies Oy
    Inventors: Mikko-Ville Laitinen, Juha Vilkamo
  • Patent number: 11778376
    Abstract: An apparatus and method for pitch-shifting an audio signal with low complexity are disclosed. The method includes identifying a distance between an audio object included in the audio signal and a listener, checking whether the distance between the audio object and the listener decreases, and performing stepwise stretching pitch-shifting of repeatedly using at least one of frequency components of the audio signal when the distance between the audio object and the listener decreases.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: October 3, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong Ju Lee, Jae-hyoun Yoo, Dae Young Jang, Kyeongok Kang, Tae Jin Lee
  • Patent number: 11770666
    Abstract: A computer implemented system for rendering captured audio soundfields to a listener comprises apparatus to deliver the audio soundfields to the listener. The delivery apparatus delivers the audio soundfields to the listener with first and second audio elements perceived by the listener as emanating from first and second virtual source locations, respectively, and with the first audio element and/or the second audio element delivered to the listener from a third virtual source location. The first virtual source location and the second virtual source location are perceived by the listener as being located to the front of the listener, and the third virtual source location is located to the rear or the side of the listener.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: September 26, 2023
    Assignee: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Richard J. Cartwright, David S. McGrath, Glenn N. Dickins
  • Patent number: 11765505
    Abstract: A correction method of acoustic characteristics of a plurality of speakers installed in a room, the correction method groups speakers, among the plurality of speakers, having identical attachment condition to the above-mentioned room, measures each of output characteristics of the grouped speakers, calculates an average characteristic of the output characteristics of the grouped speakers, and corrects each of the output characteristics of the grouped speakers based on the average characteristic.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: September 19, 2023
    Assignee: YAMAHA CORPORATION
    Inventors: Takayuki Watanabe, Akihiro Miwa
  • Patent number: 11765541
    Abstract: An apparatus includes at least one memory, instructions, and processor circuitry to execute the instructions to track movement of a head of a user wearing earphones, the earphones to move with the movement of the head of the user, the earphones to be communicatively coupled to a computing device. The processor circuitry is to obtain media content, the media content including first audio data for a first channel and second audio data for a second channel. The processor circuitry is to adjust, based on the movement of the head of the user, the first audio data for the first channel and the second audio data for the second channel. The processor circuitry is to cause the adjusted first audio data and the adjusted second audio data to be played by the earphones.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: September 19, 2023
    Assignee: INTEL CORPORATION
    Inventors: Nikos Kaburlasos, Scott W. Cheng, Devon Worrell
  • Patent number: 11765522
    Abstract: A system (20) includes a plurality of microphones (22), configured to generate different respective signals in response to acoustic waves (36) arriving at the microphones, and a processor (34). The processor is configured to receive the signals, to combine the signals into multiple channels, which correspond to different respective directions relative to the microphones by virtue of each channel representing any portion of the acoustic waves arriving from the corresponding direction with greater weight, relative to others of the directions, to calculate respective energy measures of the channels, to select one of the directions, in response to the energy measure for the channel corresponding to the selected direction passing one or more energy thresholds, and to output a combined signal representing the selected direction with greater weight, relative to others of the directions. Other embodiments are also described.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: September 19, 2023
    Assignee: NUANCE HEARING LTD.
    Inventors: Yehonatan Hertzberg, Yaniv Zonis, Stanislav Berlin, Ori Goren
  • Patent number: 11758343
    Abstract: An audio mixer includes a user interface, panners, a first adder, a localization device, a second adder, and an output circuit. The user interface supplies a first parameter and a second parameter for each channel based on a user operation. The first parameter indicates a position in a right-left direction. The second parameter specifies internalization or externalization. The panners respectively correspond to channels and, based on the first parameter, pan a sound signal corresponding to the each channel to generate first stereo signals. The first adder generates a second stereo signal by mixing first stereo signals respectively corresponding to externalization channels. The localization device generates two third stereo signals. The second adder generates a fourth stereo signal by mixing the two third stereo signals and first stereo signals respectively corresponding to internalization channels. The output circuit outputs the fourth stereo signal.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: September 12, 2023
    Assignee: YAMAHA CORPORATION
    Inventors: Noriyuki Ohashi, Shunichi Kamiya, Arata Imai
  • Patent number: 11750994
    Abstract: Disclosed is an audio signal processing method including: receiving a stereo signal; transforming the stereo signal into a frequency-domain signal; rendering the first signal based on a first ipsilateral filter coefficient; generating a frontal ipsilateral signal relating to the frequency-domain signal; rendering the second signal based on a second ipsilateral filter coefficient; generating a side ipsilateral signal relating to the frequency-domain signal; rendering the second signal based on a contralateral filter coefficient; generating a side contralateral signal relating to the frequency-domain signal; transforming an ipsilateral signal, generated by mixing the frontal ipsilateral signal and the side ipsilateral signal, and the side contralateral signal into a time-domain ipsilateral signal and a time-domain contralateral signal, which are time-domain signals, respectively; and generating a binaural signal by mixing the time-domain ipsilateral signal and the time-domain contralateral signal.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: September 5, 2023
    Assignee: GAUDIO LAB, INC.
    Inventors: Sangbae Chon, Byoungjoon Ahn, Jaesung Choi, Hyunoh Oh, Jeonghun Seo, Taegyu Lee
  • Patent number: 11743670
    Abstract: An example device includes a memory configured to store audio data and location data associated with a plurality of audio streams and one or more processors coupled to the memory. The one or more processors are configured to obtain a first location of a first audio stream that includes an audio source and obtain a second location of a second audio stream that includes the audio source. The one or more processors are configured to generate direction vectors originating at the first location and the second location, based on a location of the audio source and the first location, and the location of the audio source and the second location, respectively. The one or more processors are also configured to determine parameters that describe a vector field based on the first direction vector and the second direction vector.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: August 29, 2023
    Assignee: Qualcomm Incorporated
    Inventors: S M Akramus Salehin, Nils Günther Peters, Siddhartha Goutham Swaminathan, Isaac Garcia Munoz
  • Patent number: 11743672
    Abstract: A method (910) for rendering an audio signal in a virtual reality rendering environment (180) is described. The method (910) comprises rendering (911) an origin audio signal of an audio source (311, 312, 313) from an origin source position on an origin sphere (114) around an origin listening position (301) of a listener (181). Furthermore, the method (900) comprises determining (912) that the listener (181) moves from the origin listening position (301) to a destination listening position (302). In addition, the method (900) comprises determining (913) a destination source position of the audio source (311, 312, 313) on a destination sphere (114) around the destination listening position (302) based on the origin source position, and determining (914) a destination audio signal of the audio source (311, 312, 313) based on the origin audio signal.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: August 29, 2023
    Assignee: DOLBY INTERNATIONAL AB
    Inventors: Leon Terentiv, Christof Fersch, Daniel Fischer
  • Patent number: 11729554
    Abstract: An apparatus for generating a description of a combined audio scene, includes: an input interface for receiving a first description of a first scene in a first format and a second description of a second scene in a second format, wherein the second format is different from the first format; a format converter for converting the first description into a common format and for converting the second description into the common format, when the second format is different from the common format; and a format combiner for combining the first description in the common format and the second description in the common format to obtain the combined audio scene.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: August 15, 2023
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Guillaume Fuchs, Jürgen Herre, Fabian Küch, Stefan Döhla, Markus Multrus, Oliver Thiergart, Oliver Wübbolt, Florin Ghido, Stefan Bayer, Wolfgang Jaegers
  • Patent number: 11722831
    Abstract: The invention relates to a method for reproducing audio in a multi-channel sound system including two input signals (L and R), wherein output signals are generated for different sound perception levels. In order to develop said method in such a way that audio can be reproduced within a larger range of applications in a multi-channel sound system, according to the invention, only a lower sound perception level (7) and a higher sound perception level (6) are generated, and a maximum of six output signals are generated, a maximum of two output signals being allocated to the lower sound perception level (7) and a maximum of four output signals being allocated to the higher sound perception level (6).
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: August 8, 2023
    Assignee: Kronoton GmbH
    Inventor: Gunnar Kron
  • Patent number: 11703320
    Abstract: Techniques for determining positions of devices within an environment are described herein. In some instances, an environment, such as a home or office of a user, may include an array of devices, some or all of which may couple to a network or to other devices via short-range wireless connections (e.g., Bluetooth®, Zigbee®, etc.). These devices may capture an array of data for providing to a central service, which is configured to analyze the data and, based on this analysis, determine a location of the devices relative to one another. That is, the central service may analyze the data to determine relative distances and orientations between the identified devices within the environment.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: July 18, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Arnaud Marie Froment, Kenneth Paul Kiraly, Levon Dolbakian
  • Patent number: 11700500
    Abstract: An audio communication device includes: a sound position determiner that determines sound localization positions for N audio signals in a virtual space having first and second walls; N sound localizers each performing sound localization processing to localize sound in the sound localization position determined by the sound position determiner, and outputting localized sound signals; an adder that sums the N localized sound signals, and outputs a summed localized sound signal. Each sound localizer performs the processing using: a first head-related transfer function (HRTF) assuming that a sound wave emitted from the sound localization position of the sound localizer determined by the sound position determiner directly reaches each ear of a hearer virtually present at the hearer position; and a second HRTF assuming that the sound wave emitted from the sound localization position reaches each ear of the hearer after being reflected by closer one of the first and second walls.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: July 11, 2023
    Assignee: SOCIONEXT INC.
    Inventors: Shuji Miyasaka, Kazutaka Abe, Yasunori Naruse
  • Patent number: 11682402
    Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: June 20, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Jeong Il Seo, Jae Hyoun Yoo, Seung Kwon Beack, Jong Mo Sung, Tae Jin Lee, Kyeong Ok Kang, Jin Woong Kim, Tae Jin Park, Dae Young Jang, Keun Woo Choi
  • Patent number: 11651260
    Abstract: A method for hardware-based machine learning acceleration is provided. The method may include partitioning, into a first batch of data and a second batch of data, an input data received at a hardware accelerator implementing a machine learning model. The input data may be a continuous stream of data samples. The input data may be partitioned based at least on a resource constraint of the hardware accelerator. An update of a probability density function associated with the machine learning model may be performed in real time. The probability density function may be updated by at least processing, by the hardware accelerator, the first batch of data before the second batch of data. An output may be generated based at least on the updated probability density function. The output may include a probability of encountering a data value. Related systems and articles of manufacture, including computer program products, are also provided.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: May 16, 2023
    Assignee: The Regents of the University of California
    Inventors: Bita Darvish Rouhani, Mohammad Ghasemzadeh, Farinaz Koushanfar
  • Patent number: 11651767
    Abstract: A computer-implemented method includes obtaining training data including utterances of speakers in acoustic conditions, preparing at least one machine learning model, each machine learning model including a common embedding model for converting an utterance into a feature vector and a classification model for classifying the feature vector, and training, by using the training data, the machine learning model to perform classification by speaker and to perform classification by acoustic condition.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: May 16, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Masayuki Suzuki, Yosuke Higuchi
  • Patent number: 11648955
    Abstract: The disclosed subject matter generally relates to a voice assistant system for a vehicle which can distinguish who is issuing voice commands, and thereby also which sub-system in the vehicle to control according to the voice command. This is obtained by allowing the voice assistant system to receive input signals from an image capturing system configured to detect the user issuing the voice command. The vehicle compartment may be divided into several zones each associated with at least one sub-system, and the input signals from the image capturing system provide information to the control unit of the voice assistant system regarding the present zone of the user issuing the voice commands.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: May 16, 2023
    Assignee: Volvo Car Corporation
    Inventors: Alborz Sedaghat, Mikael Gordh
  • Patent number: 11636862
    Abstract: A processing load at a receiving side is reduced in a case where a plurality of classes of audio data is transmitted. A predetermined number of audio streams including coded data of a plurality of groups is generated and a container of a predetermined format having this predetermined number of audio streams is transmitted. Command information for creating a command specifying a group to be decoded from among the plurality of groups is inserted into the container and/or the audio stream. For example, a command insertion area for the receiving side to insert a command for specifying a group to be decoded is provided in at least one audio stream among the predetermined number of audio streams.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: April 25, 2023
    Assignee: SONY GROUP CORPORATION
    Inventor: Ikuo Tsukagoshi
  • Patent number: 11632470
    Abstract: Methods and apparatus assist listeners in distinguishing between electronically generated binaural sound and physical environment sound while the listener wears a wearable electronic device that provides the binaural sound to the listener. The wearable electronic device generates a visual alert or audio alert when the electronically generated binaural sound occurs.
    Type: Grant
    Filed: March 13, 2022
    Date of Patent: April 18, 2023
    Inventors: Glen A. Norris, Philip Scott Lyren
  • Patent number: 11617050
    Abstract: A system and method for externalizing sound. The system includes a headphone assembly and a localizer configured to collect information related to a location of the user and of an acoustically reflective surface in the environment. A controller is configured to determine a location of at least one virtual sound source, and generate head related transfer functions that simulate characteristics of sound from the virtual sound source directly to the user and to the user via a reflection by the reflective surface. A signal processing assembly is configured to create one or more output signals by filtering the sound signal respectively with the HRTFs. Each speaker of the headphone assembly is configured to produce sound in accordance with the output signal.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 28, 2023
    Assignee: Bose Corporation
    Inventors: Wade P. Torres, Daniel R. Tengelsen, Mikaela A. Shannon, Cedrik Bacon, Carl Jensen, Eric Raczka Bernstein
  • Patent number: 11605396
    Abstract: An image processing system for generating an image for display to a user at a head-mountable display device includes: a sound input unit configured to receive sound information relating to one or more sounds, an audio processing unit configured to analyse the sound information relating to the one or more sounds, an image generation unit configured to generate one or more image elements that indicate properties of analysed sound information, and an image output unit configured to output display images for display to a user of a head-mountable display device, the images comprising the generated image elements as an image overlay, where the one or more generated image elements are indicative of the direction of the source of the one or more sounds.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: March 14, 2023
    Assignee: Sony Interactive Entertainment Inc.
    Inventor: Neil Jonathan Brown
  • Patent number: 11606662
    Abstract: The description relates to modeling acoustic effects in scenes with dynamic portals. One implementation includes obtaining a representation of a scene having a plurality of portals and simulating sound travel in the scene using a plurality of probes deployed in the scene. The implementation also includes determining acoustic parameters for initial sound traveling between respective probes based at least on the simulating. The implementation also includes identifying one or more intercepted portals in the scene that are intercepted by a particular initial sound path from a particular source location to a particular listener location, using particular acoustic parameters for the particular source location and the particular listener location.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: March 14, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Nikunj Raghuvanshi
  • Patent number: 11574644
    Abstract: The present technology relates to a signal processing device and method, and a program making it possible to reduce the computational complexity of decoding at low cost. A signal processing device includes: a priority information generation unit configured to generate priority information about an audio object on the basis of a plurality of elements expressing a feature of the audio object. The present technology may be applied to an encoding device and a decoding device.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: February 7, 2023
    Assignee: Sony Corporation
    Inventors: Yuki Yamamoto, Toru Chinen, Minoru Tsuji
  • Patent number: 11567729
    Abstract: A method for playing audio data, includes: detecting a number and position relationships of associated audio playback devices; performing audio signal processing on audio data to be played based on the number and the position relationships to obtain an audio signal matching the number of the audio playback devices; and playing the audio signal through the audio playback devices.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: January 31, 2023
    Assignee: Beijing Xiaomi Pinecone Electronics Co., Ltd.
    Inventors: Mengmei Liu, Zerui Han, Renwei Huang, Chen Zhang, Fei Xiang
  • Patent number: 11561621
    Abstract: Intelligent systems are disclosed that respond to user intent and desires based upon activity that may or may not be expressly directed at the intelligent system. In some embodiments, the intelligent system acquires a depth image of a scene surrounding the system. A scene geometry may be extracted from the depth image and elements of the scene may be monitored. In certain embodiments, user activity in the scene is monitored and analyzed to infer user desires or intent with respect to the system. The interpretation of the user's intent as well as the system's response may be affected by the scene geometry surrounding the user and/or the system. In some embodiments, techniques and systems are disclosed for interpreting express user communication, e.g., expressed through hand gesture movements. In some embodiments, such gesture movements may be interpreted based on real-time depth information obtained from, e.g., optical or non-optical type depth sensors.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: January 24, 2023
    Assignee: Apple Inc.
    Inventors: Feng Tang, Chong Chen, Haitao Guo, Xiaojin Shi, Thorsten Gernoth
  • Patent number: 11557269
    Abstract: An information processing device 11 including: a control data generation unit that inputs analysis data X that is to be processed, to a trained model that has learnt a relationship between analysis data X that represents a time series of musical notes, and control data Y for controlling movements of an object that represents a performer, thereby generating control data Y according to the analysis data X.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: January 17, 2023
    Assignee: YAMAHA CORPORATION
    Inventors: Akira Maezawa, Boehen Li
  • Patent number: 11551658
    Abstract: A speaker system uses destructive wave interference to generate “dead spots” with respect to an audio presentation. The signal for the dead spot generating device can be an inverted signal generated using the audio signal. In one embodiment, the inverted signal is generated using the audio signal, an indication of loudness at one or more active speakers, and a determination of the characteristics of the sound path from the one or more active speakers (including delay and attenuation).
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: January 10, 2023
    Assignee: Comcast Cable Communications, LLC
    Inventor: Adam Eng