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公开(公告)号：US20230359430A1
公开(公告)日：2023-11-09
申请号：US18351357
申请日：2023-07-12
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Mark Alexander , Chunjian Li , Joshua Brandon Lando , Alan J. Seefeldt , C. Phillip Brown , Dirk Jeroen Breebaart
CPC classification number: G06F3/165 , H04B15/00 , H04R1/1041 , H04R1/1083 , H04R3/04 , H04R29/001 , H04R5/033 , H04R2430/01
Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.
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公开(公告)号：US12164832B2
公开(公告)日：2024-12-10
申请号：US18351357
申请日：2023-07-12
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Mark Alexander , Chunjian Li , Joshua Brandon Lando , Alan J. Seefeldt , C. Phillip Brown , Dirk Jeroen Breebaart
Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.
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公开(公告)号：US20220253274A1
公开(公告)日：2022-08-11
申请号：US17660951
申请日：2022-04-27
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Mark Alexander , Chunjian Li , Joshua Brandon Lando , Alan J. Seefeldt , C. Phillip Brown , Dirk Jeroen Breebaart
Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.
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公开(公告)号：US20190179604A1
公开(公告)日：2019-06-13
申请号：US16309230
申请日：2017-06-14
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Mark Alexander , Chunjian Li , Joshua Brandon Lando , Alan J. Seefeldt , Phillip C. Brown , Dirk Jeroen Breebaart
Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.
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公开(公告)号：US11354088B2
公开(公告)日：2022-06-07
申请号：US17248992
申请日：2021-02-16
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Mark Alexander , Chunjian Li , Joshua Brandon Lando , Alan J. Seefeldt , C. Phillip Brown , Dirk Jeroen Breebaart
Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.
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Patent Agency Ranking
公开(公告)号：US10923132B2
公开(公告)日：2021-02-16
申请号：US16073663
申请日：2017-02-15
Applicant: Dolby Laboratories Licensing Corporation
Inventor： David Gunawan , Chunjian Li
IPC: G10L19/00 , G10L19/008 , G10L21/034 , H03G3/30 , H03G3/34 , H03G5/00 , H04R5/04 , H04S7/00 , H03G5/16 , H03G3/32
Abstract: A sound processing system operative to measure the level of diffusivity of the sounds present in the input sound signal. The system includes a plurality of input channels for receiving audio signals from an audio scene, the audio scene comprising at least one target sound in the presence of background noise. A diffusivity measurement unit is included so as to be operably coupled to the plurality of input channels to receive the audio signals therefrom and measure a level of diffusivity of the sounds present therein. A leveler unit is operably coupled to the plurality of input channels for receiving the audio signals therefrom and for applying a gain to the audio signals to minimize variations in the audio signal levels. A controller is operably coupled to the diffusivity measurement unit and the leveler unit to control the gain applied to the audio signals by the leveler unit based on the level of diffusivity of the sounds present therein.
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公开(公告)号：US11863952B2
公开(公告)日：2024-01-02
申请号：US17979385
申请日：2022-11-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Chunjian Li
CPC classification number: H04R5/027 , H04R1/265 , H04R5/04 , H04R29/005
Abstract: Audio signals from microphones of a mobile device are received. Each audio signal is generated by a respective microphone of the microphones. First microphones are selected from among the microphones to generate a front audio signal. Second microphones are selected from among the microphones to generate a back audio signal. A first audio signal portion, which is determined based at least in part on the back audio signal, is removed from the front audio signal to generate a modified front audio signal. A second audio signal portion is removed from the modified front audio signal to generate a left-front audio signal. A third audio signal portion is removed from the modified front audio signal to generate a right-front audio signal.
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公开(公告)号：US11740859B2
公开(公告)日：2023-08-29
申请号：US17660951
申请日：2022-04-27
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Mark Alexander , Chunjian Li , Joshua Brandon Lando , Alan J. Seefeldt , C. Phillip Brown , Dirk Jeroen Breebaart
CPC classification number: G06F3/165 , H04B15/00 , H04R1/1041 , H04R1/1083 , H04R3/04 , H04R29/001 , H04R5/033 , H04R5/04 , H04R2201/107 , H04R2430/01 , H04R2460/01
Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.
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公开(公告)号：US11640830B2
公开(公告)日：2023-05-02
申请号：US17475064
申请日：2021-09-14
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Chunjian Li
IPC: G10L21/0208 , H04R3/00 , G10L21/0216
Abstract: Microphone signals are received from microphones of a computer device. Each microphone signal of the microphone signals is acquired by a respective microphone of the microphones. A previously unselected microphone is selected from the microphones as a reference microphone, which generates a reference microphone signal. An adaptive filter is used to create, based on microphone signals of the microphones other than the reference microphone, predicted microphone signals for the reference microphone. Based on the predicted microphone signals for the reference microphone, an enhanced microphone signal is outputted for the reference microphone. The enhanced microphone signal may be used as microphone signal for the reference microphone in subsequent audio processing operations.
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公开(公告)号：US20210165629A1
公开(公告)日：2021-06-03
申请号：US17248992
申请日：2021-02-16
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Mark Alexander , Chunjian Li , Joshua Brandon Lando , Alan J. Seefeldt , C. Phillip Brown , Dirk Jeroen Breebaart
Abstract: Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second plurality of frequency bands based on the perceived loudness of the microphone input audio data, of the microphone output audio data, of the media output audio data and the media input audio data. One or more processes may be modified upon receipt of a mode-switching indication.
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