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21. 发明申请

US20230093582A1 AV AMPLIFIER 有权
公开(公告)号：US20230093582A1
公开(公告)日：2023-03-23
申请号：US17904971
申请日：2020-09-29
申请人： D&M Holdings, Inc.
发明人： Yoshiharu Imahama , Shunichi Tani
IPC分类号： H04R5/04 , H04R3/12 , H03F1/00 , H04S7/00
摘要： [Problem] To provide an AV amplifier with which it is possible to listen to multichannel audio without having to be equipped with a processing unit for processing multichannel digital signals and without wasting resources.
[Solution] The present invention is provided with an input unit for inputting digital data, an operation unit for accepting a reproduction indication, an interface unit for transmitting the digital data inputted by the input unit to a server and receiving an audio signal from the server, a reproduction unit for reproducing the audio signal received by the interface unit, an output unit for outputting the audio signal reproduced by the reproduction unit to a speaker, and a control unit for controlling the interface unit in accordance with the reproduction indication from a user having been accepted by the operation unit, the control unit controlling a server interface unit so that when audio reproduction is indicated, the digital data inputted by the input unit is transmitted to the server and the multichannel audio processed by the server is received and outputted to the reproduction unit.

22. 发明申请

US20230088922A1 REPRESENTATION AND RENDERING OF AUDIO OBJECTS 有权
公开(公告)号：US20230088922A1
公开(公告)日：2023-03-23
申请号：US17910247
申请日：2020-03-10
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Werner DE BRUIJN , Tommy FALK , Tomas JANSSON TOFTGÅRD
IPC分类号： H04S7/00
摘要： A method (900) for representing a cluster of audio objects (202). The method includes obtaining (s902) reference position information identifying a reference position within the cluster of audio objects; and using the obtained reference position information, transforming (s904) the cluster of audio objects into a composite spatial audio object. The transforming of the cluster of audio objects into the composite spatial audio object is performed independently of any listening position of any user.

23. 发明申请

US20230088166A1 Method and Apparatus for Producing an Acoustic Field 有权
公开(公告)号：US20230088166A1
公开(公告)日：2023-03-23
申请号：US18060556
申请日：2022-11-30
申请人： Ultrahaptics IP Ltd
发明人： Thomas Andrew Carter , Benjamin John Oliver Long , Sriram Subramanian
IPC分类号： G01S7/52 , H04S7/00 , G06F3/01 , G01S7/539 , G01S15/36 , G01S15/87
摘要： A plurality of control points (10) are defined which each have a known spatial relationship relative to an array of transducers. An amplitude is assigned to each control point (12). A matrix (16) is produced containing elements which represent, for each of the control points, the effect that producing a modeled acoustic field having the assigned amplitude with a particular phase at the control point has on the consequential amplitude and phase of the modeled acoustic field at the other control points (14). Eigenvectors of the matrix (18) are determined, each eigenvector representing a set of phases and relative amplitudes of the modeled acoustic field at the control points. One of the sets (20) is selected and the transducer array is operated to cause one or more of the transducers to output an acoustic wave each having an initial amplitude and phase such that the phases and amplitudes of the resultant acoustic field at the control points correspond to the phases and relative amplitudes of the selected set (22, 24).

24. 发明授权

US11611826B1 Customized sound field for increased privacy 有权
公开(公告)号：US11611826B1
公开(公告)日：2023-03-21
申请号：US17584326
申请日：2022-01-25
申请人： META PLATFORMS TECHNOLOGIES, LLC
发明人： Antonio John Miller , Jacob Ryan Donley , Scott Porter
IPC分类号： H04R3/00 , H04R1/10 , H04R1/40 , G10L25/78 , H04S7/00
摘要： An audio system for customizing sound fields for increased user privacy. A microphone array of a headset detects sounds from one or more sound sources in a local area of the headset. The audio system estimates array transfer functions (ATFs) associated with the sounds, and determines determining sound field reproduction filters for a loudspeaker array of the headset using the ATFs. The audio system presents audio content, via the loudspeaker array, based in part on the sound field reproduction filters. The presented audio content has a sound field that has a reduced amplitude in a first damped region of the local area that includes a first sound source of the one or more sound sources.

25. 发明申请

US20230075445A1 DYNAMIC RANGE CONTROL FOR A WIDE VARIETY OF PLAYBACK ENVIRONMENTS 有权
公开(公告)号：US20230075445A1
公开(公告)日：2023-03-09
申请号：US17898358
申请日：2022-08-29
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jeroen Koppens , Jeffrey Riedmiller , Kristofer Kjoerling , Alexander Stahlmann , Holger Hoerich , Alan J. Seefeldt
IPC分类号： G06F3/16 , H04S7/00 , H03G3/30 , G10L19/16 , H03G9/18 , H03G9/00 , H03G7/00 , G10L21/0324 , H03G9/02 , H04S1/00 , H03G9/12
摘要： In an audio encoder, for audio content received in a source audio format, default gains are generated based on a default dynamic range compression (DRC) curve, and non-default gains are generated for a non-default gain profile. Based on the default gains and non-default gains, differential gains are generated. An audio signal comprising the audio content, the default DRC curve, and differential gains is generated. In an audio decoder, the default DRC curve and the differential gains are identified from the audio signal. Default gains are re-generated based on the default DRC curve. Based on the combination of the re-generated default gains and the differential gains, operations are performed on the audio content extracted from the audio signal.

26. 发明申请

US20230074058A1 ADAPTIVE AUDIO PROFILE 有权
公开(公告)号：US20230074058A1
公开(公告)日：2023-03-09
申请号：US17468872
申请日：2021-09-08
申请人： GM Global Technology Operations LLC
发明人： Nissim Gean , Alan T. Budyta
IPC分类号： H04S7/00
摘要： An audio entertainment system includes an audio infotainment system adapted to provide sound to an environment, a plurality of speakers positioned within the environment and in communication with the infotainment system, and a controller adapted to automatically adjust output characteristics of each of the plurality of speakers based on a location of occupants within the environment.

27. 发明申请

US20230070037A1 METHOD FOR PROCESSING AUDIO SIGNAL AND ELECTRONIC DEVICE 有权
公开(公告)号：US20230070037A1
公开(公告)日：2023-03-09
申请号：US17898922
申请日：2022-08-30
申请人： BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
发明人： Xinyue FAN , Chen ZHANG , Xiguang ZHENG
IPC分类号： H04S7/00 , G10H1/00 , H04S5/00
摘要： A method for processing an audio signal and an electronic device, relate to the field of audio and video technology. The method includes: detecting beat information of the audio signal; and obtaining virtual surround sound for the audio signal by performing a convolution operation on a head-related transfer function and the audio signal based on the beat information of the audio signal.

28. 发明授权

US11601774B2 System and method for real time loudspeaker equalization 有权
公开(公告)号：US11601774B2
公开(公告)日：2023-03-07
申请号：US17269159
申请日：2019-08-14
申请人： DTS, Inc.
发明人： Daekyoung Noh
IPC分类号： H04S7/00 , H04R3/04
摘要： A loudspeaker system can include a first loudspeaker driver provided in a substantially fixed spatial relationship relative to a microphone. The loudspeaker driver can be tuned, for example automatically and without user input. In an example, the tuning can include receiving transfer function reference information about the first loudspeaker driver and the microphone, and receiving information about a desired acoustic response for the loudspeaker system. The tuning can include determining a simulated response for the loudspeaker system using a first input signal and the transfer function reference information, and can include providing the first input signal to the first loudspeaker driver. In response to the first input signal, an actual response for the loudspeaker driver can be received using the microphone. A compensation filter can be determined for the loudspeaker system based on the determined simulated response and the received actual response for the loudspeaker system.

29. 发明申请

US20230065644A1 METHODS, APPARATUS AND SYSTEMS FOR 6DOF AUDIO RENDERING AND DATA REPRESENTATIONS AND BITSTREAM STRUCTURES FOR 6DOF AUDIO RENDERING 有权
公开(公告)号：US20230065644A1
公开(公告)日：2023-03-02
申请号：US17896005
申请日：2022-08-25
申请人： DOLBY INTERNATIONAL AB
发明人： Leon TERENTIV , Christof FERSCH , Daniel FISCHER
IPC分类号： H04S7/00 , G10L19/008 , G10L19/16 , H04S3/00
摘要： The present disclosure relates to methods, apparatus and systems for encoding an audio signal into a bitstream, in particular at an encoder, comprising: encoding or including audio signal data associated with 3DoF audio rendering into one or more first bitstream parts of the bitstream, and encoding or including metadata associated with 6DoF audio rendering into one or more second bitstream parts of the bitstream. The present disclosure further relates to methods, apparatus and systems for decoding an audio signal and audio rendering based on the bitstream.

30. 发明申请

US20230064652A1 Methods and Systems for Prioritized Replication of a Virtual World 有权
公开(公告)号：US20230064652A1
公开(公告)日：2023-03-02
申请号：US17411976
申请日：2021-08-25
申请人： Verizon Patent and Licensing Inc.
发明人： William Robert Davey , James Susinno , Vito Joseph Messina , Oliver S. Castaneda
IPC分类号： G06T15/20 , G06T15/08 , G06T15/04 , G06T17/20 , H04S7/00
摘要： An illustrative server system receives a request from a client device to join a virtual world managed by the server system. In response to receiving the request, the server system identifies an avatar location for an avatar that is to represent a user of the client device within the virtual world when the client device joins the virtual world. Based on the avatar location, the server system determines a first priority value for a first asset of the virtual world and a second priority value for a second asset of the virtual world. Based on the first and second priority values, the server system provides to the client device a prioritized replication of the virtual world in which the first asset is replicated in a prioritized manner that allows the user to experience the first asset before the second asset is replicated. Corresponding methods and systems are also disclosed.

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