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11. 发明申请

WO2020010072A1 METHODS AND DEVICES FOR ENCODING AND/OR DECODING IMMERSIVE AUDIO SIGNALS 审中-公开
公开(公告)号：WO2020010072A1
公开(公告)日：2020-01-09
申请号：PCT/US2019/040282
申请日：2019-07-02
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： MCGRATH, David S. , ECKERT, Michael , PURNHAGEN, Heiko , BRUHN, Stefan
IPC分类号： G10L19/008 , G10L19/02 , G10L19/04 , G10L19/18
摘要： The present document describes a method (700) for encoding a multi-channel input signal (201). The method (700) comprises determining (701) a plurality of downmix channel signals (203) from the multi-channel input signal (201) and performing (702) energy compaction of the plurality of downmix channel signals (203) to provide a plurality of compacted channel signals (404). Furthermore, the method (700) comprises determining (703) joint coding metadata (205) based on the plurality of compacted channel signals (404) and based on the multi-channel input signal (201), wherein the joint coding metadata (205) is such that it allows upmixing of the plurality of compacted channel signals (404) to an approximation of the multi-channel input signal (201). In addition, the method (700) comprises encoding (704) the plurality of compacted channel signals (404) and the joint coding metadata (205).

12. 发明申请

WO2020010064A1 METHODS AND DEVICES FOR GENERATING OR DECODING A BITSTREAM COMPRISING IMMERSIVE AUDIO SIGNALS 审中-公开
公开(公告)号：WO2020010064A1
公开(公告)日：2020-01-09
申请号：PCT/US2019/040271
申请日：2019-07-02
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： BRUHN, Stefan , TORRES, Juan Felix
IPC分类号： G10L19/16 , H04S3/00 , G10L19/008
摘要： The present document describes a method (500) for generating a bitstream (101), wherein the bitstream (101) comprises a sequence of superframes (400) for a sequence of frames of an immersive audio signal (111). The method (500) comprises, repeatedly for the sequence of superframes (400), inserting (501) coded audio data (206) for one or more frames of one or more downmix channel signals (203) derived from the immersive audio signal (111), into data fields (411, 421, 412, 422) of a superframe (400); and inserting (502) metadata (202, 205) for reconstructing one or more frames of the immersive audio signal (111) from the coded audio data (206), into a metadata field (403) of the superframe (400).

13. 发明申请

WO2018232327A1 METHODS, APPARATUS AND SYSTEMS FOR OPTIMIZING COMMUNICATION BETWEEN SENDER(S) AND RECEIVER(S) IN COMPUTER-MEDIATED REALITY APPLICATIONS 审中-公开
公开(公告)号：WO2018232327A1
公开(公告)日：2018-12-20
申请号：PCT/US2018/037887
申请日：2018-06-15
申请人： DOLBY INTERNATIONAL AB , DOLBY LABORATORIES LICENSING CORPORATION
发明人： FERSCH, Christof , TSINGOS, Nicolas R.
IPC分类号： H04S3/00 , H04S7/00 , G06F3/01 , A63F13/428
摘要： The present invention is directed to systems, methods and apparatus for processing media content for reproduction by a first apparatus. The method includes obtaining pose information indicative of a position and/or orientation of a user. The pose information is transmitted to a second apparatus that provides the media content. The media content is rendered based on the pose information to obtain rendered media content. The rendered media content is transmitted to the first apparatus for reproduction. The present invention may include a first apparatus for reproducing media content and a second apparatus storing the media content. The first apparatus is configured to obtain pose information indicative and transmit the pose information to the second apparatus; and the second apparatus is adapted to: render the media content based on the pose information to obtain rendered media content; and transmit the rendered media content to the first apparatus for reproduction.

14. 发明申请

WO2021211471A1 AUTOMATED MIXING OF AUDIO DESCRIPTION 审中-公开
公开(公告)号：WO2021211471A1
公开(公告)日：2021-10-21
申请号：PCT/US2021/026926
申请日：2021-04-12
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： VAN VEEN, Daniel , PANKEY, Satej
IPC分类号： H03G3/30 , G10L19/008 , G10L21/0324 , H03G7/00 , H04H60/04
摘要： A computer-implemented method of audio processing, the method comprising: receiving audio object data and audio description data, wherein the audio object data includes a first plurality of audio objects; calculating a long-term loudness of the audio object data and a long- term loudness of the audio description data; calculating a plurality of short-term loudnesses of the audio object data and a plurality of short-term loudnesses of the audio description data; reading a first plurality of mixing parameters that correspond to the audio object data; generating a second plurality of mixing parameters based on the first plurality of mixing parameters, the long-term loudness of the audio object data, the long-term loudness of the audio description data, the plurality of short-term loudnesses of the audio object data, and the plurality of short-term loudnesses of the audio description data; generating a gain adjustment visualization corresponding to the second plurality of mixing parameters, the audio object data and the audio description data; and generating mixed audio object data by mixing the audio object data and the audio description data according to the second plurality of mixing parameters, wherein the mixed audio object data includes a second plurality of audio objects, wherein the second plurality of audio objects correspond to the first plurality of audio objects mixed with the audio description data according to the second plurality of mixing parameters.

15. 发明申请

WO2021034625A1 METHOD AND APPARATUS FOR AUDIO PROCESSING 审中-公开
公开(公告)号：WO2021034625A1
公开(公告)日：2021-02-25
申请号：PCT/US2020/046261
申请日：2020-08-14
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： REILLY, Andrew P.
IPC分类号： H04R3/04 , H04S7/00
摘要： An apparatus and method of loudspeaker equalization. The method combines default tunings (generated based on a default listening environment) and room tunings (generated based on an end user listening environment) to result in combined tunings that account for differences between the end user listening environment and the default listening environment.

16. 发明申请

WO2021021766A1 COORDINATION OF AUDIO DEVICES 审中-公开
公开(公告)号：WO2021021766A1
公开(公告)日：2021-02-04
申请号：PCT/US2020/043795
申请日：2020-07-28
申请人： DOLBY INTERNATIONAL AB , DOLBY LABORATORIES LICENSING CORPORATION
发明人： DICKINS, Glenn N. , THOMAS, Mark Richard Paul , SEEFELDT, Alan J. , LANDO, Joshua B. , ARTEAGA, Daniel , DYONISIO, Carlos Medaglia , GUNAWAN, David , CARTWRIGHT, Richard J. , HINES, Christopher Graham
IPC分类号： H04R3/12 , H04L29/08 , H04S7/00
摘要： An audio session management method may involve: determining, by an audio session manager, one or more first media engine capabilities of a first media engine of a first smart audio device, the first media engine being configured for managing one or more audio media streams received by the first smart audio device and for performing first smart audio device signal processing for the one or more audio media streams according to a first media engine sample clock; receiving, by the audio session manager and via a first application communication link, first application control signals from the first application; and controlling the first smart audio device according to the first media engine capabilities, by the audio session manager, via first audio session management control signals transmitted to the first smart audio device via a first smart audio device communication link and without reference to the first media engine sample clock.

17. 发明申请

WO2021021750A1 DYNAMICS PROCESSING ACROSS DEVICES WITH DIFFERING PLAYBACK CAPABILITIES 审中-公开
公开(公告)号：WO2021021750A1
公开(公告)日：2021-02-04
申请号：PCT/US2020/043764
申请日：2020-07-27
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： SEEFELDT, Alan J. , LANDO, Joshua B. , ARTEAGA, Daniel
IPC分类号： H04R5/04 , H04S3/00 , H04R5/02 , H04R27/00 , H04S7/00 , H04R3/00 , H04R3/04
摘要： Individual loudspeaker dynamics processing configuration data, for each of a plurality of loudspeakers of a listening environment, may be obtained. Listening environment dynamics processing configuration data may be determined, based on the individual loudspeaker dynamics processing configuration data. Dynamics processing may be performed on received audio data based on the listening environment dynamics processing configuration data, to generate processed audio data. The processed audio data may be rendered for reproduction via a set of loudspeakers that includes at least some of the plurality of loudspeakers, to produce rendered audio signals. The rendered audio signals may be provided to, and reproduced by, the set of loudspeakers.

18. 发明申请

WO2020176421A1 ACOUSTIC REFLECTOR FOR HEIGHT CHANNEL SPEAKER 审中-公开
公开(公告)号：WO2020176421A1
公开(公告)日：2020-09-03
申请号：PCT/US2020/019523
申请日：2020-02-24
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： TIPPARAJU, Lakshmikanth
IPC分类号： H04R1/34 , G10K11/28 , G10K11/30 , H04M1/03 , H04R1/40
摘要： A height channel speaker with an integrated acoustic reflector to reflect sound off of a ceiling down to a listener. The acoustic reflector compensates for thin transducers by creating a virtual image of the real sound source outside the speaker enclosure. The focal point of the acoustic reflector is controlled by modifying the curvature of the reflector surface. The transducer is mounted on an inclined plane to radiate sound in a rear-upward inclined direction. The acoustic reflector is mounted on the same inclined plane so that the radiant axis of the transducer is directly incident on the acoustic reflector surface. The sound is projected towards the ceiling in a forward, upward-inclined direction to reflect off the ceiling and down to the listener. The speaker can be acoustically occluded from the listener by a panel to which the speaker is attached.

19. 发明申请

WO2018064296A1 METHOD, SYSTEMS AND APPARATUS FOR DETERMINING AUDIO REPRESENTATION(S) OF ONE OR MORE AUDIO SOURCES 审中-公开
标题翻译：用于确定一个或多个音频源的音频表示的方法，系统和设备
公开(公告)号：WO2018064296A1
公开(公告)日：2018-04-05
申请号：PCT/US2017/053946
申请日：2017-09-28
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： TSINGOS, Nicolas R. , GOVINDARAJU, Pradeep Kumar
IPC分类号： H04R3/00 , G01S3/808 , G01S5/20
CPC分类号： H04R3/005 , G01S5/20 , G10L25/18 , H04R1/406 , H04R2201/401 , H04R2430/21 , H04S2400/11 , H04S2400/15 , H04S2420/11
摘要： The present document describes a method (700) for determining the position of at least one audio source (200). The method (700) includes capturing (701) first and second microphone signals at two or more microphone arrays (210, 220, 230), wherein the two or more microphone arrays (210, 220, 230) are placed at different positions. The two or more microphone arrays (210, 220, 230) each comprise at least a first microphone capsule to capture a first microphone signal and a second microphone capsule to capture a second microphone signal, wherein the first and second microphone capsules have differently oriented spatial directivities. Furthermore, the method (700) comprises determining (702), for each microphone array (210, 220, 230) and based on the respective first and second microphone signals, an incident direction (211, 221, 231) of at least one audio source (200) at the respective microphone array (210, 220, 230). In addition, the method (700) comprises determining (703) the position of the audio source (200) based on the incident directions (211, 221, 231) at the two or more microphone arrays (210, 220, 230).
摘要翻译：本文件描述了用于确定至少一个音频源（200）的位置的方法（700）。该方法（700）包括在两个或更多个麦克风阵列（210,220,230）捕获（701）第一和第二麦克风信号，其中两个或更多麦克风阵列（210,220,230）被放置在不同的位置。两个或更多个麦克风阵列（210,220,230）每个都包括至少第一麦克风胶囊以捕获第一麦克风信号，第二麦克风胶囊以捕获第二麦克风信号，其中第一麦克风胶囊和第二麦克风胶囊具有不同定向的空间方向性。此外，方法（700）包括针对每个麦克风阵列（210,220,230）并且基于相应的第一和第二麦克风信号确定（702）至少一个音频的入射方向（211,221,231）源（200）在相应的麦克风阵列（210,220,230）处。此外，方法（700）包括基于两个或更多个麦克风阵列（210,220,230）处的入射方向（211,221,231）来确定（703）音频源（200）的位置。 / p>

20. 发明申请

WO2022119990A1 AUDIBILITY AT USER LOCATION THROUGH MUTUAL DEVICE AUDIBILITY 审中-公开
公开(公告)号：WO2022119990A1
公开(公告)日：2022-06-09
申请号：PCT/US2021/061506
申请日：2021-12-02
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： THOMAS, Mark R. P. , ARTEAGA, Daniel , HINES, Christopher Graham , SCAINI, Davide , SOUTHWELL, Benjamin, John , BRUNI, Avery , TOWNSEND, Olha, Michelle
IPC分类号： H04S7/00
摘要： Some methods involve causing a plurality of audio devices in an audio environment to reproduce audio data, each audio device of the plurality of audio devices including at least one loudspeaker and at least one microphone, determining audio device location data including an audio device location for each audio device of the plurality of audio devices and obtaining microphone data from each audio device of the plurality of audio devices. Some methods involve determining a mutual audibility for each audio device of the plurality of audio devices relative to each other audio device of the plurality of audio devices, determining a user location of a person in the audio environment, determining a user location audibility of each audio device of the plurality of audio devices at the user location and controlling one or more aspects of audio device playback based, at least in part, on the user location audibility.

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