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公开(公告)号：US20220270601A1
公开(公告)日：2022-08-25
申请号：US17626617
申请日：2020-07-30
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Christopher Graham HINES , Rowan James KATEKAR , Glenn N. DICKINS , Richard J. CARTWRIGHT , Jeremiha Emile DOUGLAS , Mark R.P. THOMAS
Abstract: A method may involve receiving output signals from each microphone of a plurality of microphones in the environment, each of the plurality of microphones residing in a microphone location of the environment, the output signals corresponding to an utterance of a person. The method may involve determining, based at least in part on the output signals, a zone within the environment that has at least a threshold probability of including the person's location and generating a plurality of spatially-varying attentiveness signals within the zone. Each attentiveness signal may be generated by a device located within the zone. Each attentiveness signal may indicate that a corresponding device is in an operating mode in which the corresponding device is awaiting a command and may indicate a relevance metric of the corresponding device.
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公开(公告)号：US20240107252A1
公开(公告)日：2024-03-28
申请号：US18254962
申请日：2021-12-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Christopher Graham HINES , Benjamin John SOUTHWELL
CPC classification number: H04S7/301 , H04S3/008 , H04S7/307 , H04S2400/01 , H04S2400/15
Abstract: An attenuation or “gap” may be inserted into at least a first frequency range of at least first and second audio playback signals of a content stream during at least a first time interval to generate at least first and second modified audio playback signals. Corresponding audio device playback sound may be provided by at least first and second audio devices. At least one microphone may detect at least the first audio device playback sound and the second audio device playback sound and may generate corresponding microphone signals. Audio data may be extracted from the microphone signals in at least the first frequency range, to produce extracted audio data. A far-field audio environment impulse response and/or audio environment noise may be estimated based, at least in part, on the extracted audio data.
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3.发明公开公开(公告)号：US20240056757A1
公开(公告)日：2024-02-15
申请号：US18255550
申请日：2021-12-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Benjamin John SOUTHWELL , David GUNAWAN , Mark R.P. THOMAS , Christopher Graham HINES
IPC: H04S7/00
Abstract: Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first direct sequence spread spectrum (DSSS) signals, generating first modified audio playback signals by inserting the first DSSS signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound. The method(s) may involve receiving microphone signals corresponding to at least the first audio device playback sound and to second through Nth audio device playback sound corresponding to second through Nth modified audio playback signals (including second through Nth DSSS signals) played back by second through Nth audio devices, extracting second through Nth DSSS signals from the microphone signals and estimating at least one acoustic scene metric based, at least partly, on the second through Nth DSSS signals.
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4.发明公开公开(公告)号：US20240048931A1
公开(公告)日：2024-02-08
申请号：US18255499
申请日：2021-12-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Benjamin John SOUTHWELL , David GUNAWAN , Mark R.P. THOMAS , Christopher Graham HINES
CPC classification number: H04S7/301 , H04S7/307 , H04R5/02 , H04R5/04 , H04S2400/15
Abstract: Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first direct sequence spread spectrum (DSSS) signals, generating first modified audio playback signals by inserting the first DSSS signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound. The method(s) may involve receiving microphone signals corresponding to at least the first audio device playback sound and to second through Nth audio device playback sound corresponding to second through Nth modified audio playback signals (including second through Nth DSSS signals) played back by second through Nth audio devices, extracting second through Nth DSSS signals from the microphone signals and estimating at least one acoustic scene metric based, at least partly, on the second through Nth DSSS signals.
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Patent Agency Ranking
公开(公告)号：US20200236440A1
公开(公告)日：2020-07-23
申请号：US16640035
申请日：2018-08-22
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Christopher Graham HINES
IPC: H04N21/472 , H04N21/439 , H04N21/44 , H04N21/435 , H04N21/4728 , H04N21/462 , H04N21/6587 , H04N21/845 , H04N21/433
Abstract: The present disclosure relates to methods and apparatus for processing media content having video content and associated audio content. A method of processing media content having video content and associated audio content comprises the method includes receiving the video content and the associated audio content, analyzing the associated audio content, determining one or more navigation points for enabling navigation of the media content based on the analysis, wherein the one or more navigation points indicate points of interest in the associated audio content for short-term rewinding and/or fast forwarding, embedding the one or more navigation points into metadata for the media content, and outputting the video content, the associated audio content, and the metadata.
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公开(公告)号：US20240381046A1
公开(公告)日：2024-11-14
申请号：US18254597
申请日：2021-12-02
Inventor： Mark R.P. THOMAS , Benjamin John SOUTHWELL , Avery BRUNI , Olha Michelle TOWNSEND , Daniel ARTEAGA , Davide SCAINI , Christopher Graham HINES , Alan J. SEEFELDT , David GUNAWAN , C. Phillip Brown
Abstract: Some methods may involve receiving a first content stream that includes first audio signals, rendering the first audio signals to produce first audio playback signals, generating first calibration signals, generating first modified audio playback signals by inserting the first calibration signals into the first audio playback signals, and causing a loudspeaker system to play back the first modified audio playback signals, to generate first audio device playback sound. The method(s) may involve receiving microphone signals corresponding to at least the first audio device playback sound and to second through Nth audio device playback sound corresponding to second through Nth modified audio playback signals (including second through Nth calibration signals) played back by second through Nth audio devices, extracting second through Nth calibration signals from the microphone signals and estimating at least one acoustic scene metric based, at least partly, on the second through Nth calibration signals.
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公开(公告)号：US20240304171A1
公开(公告)日：2024-09-12
申请号：US18263956
申请日：2022-02-07
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Benjamin John SOUTHWELL , Christopher Graham HINES , David GUNAWAN
IPC: G10K11/178
CPC classification number: G10K11/17823 , G10K11/17873 , G10K2210/30231 , G10K2210/3027 , G10K2210/505
Abstract: Some implementations involve obtaining a plurality of echo references, the plurality of echo references including at least one echo reference for each audio device of a plurality of audio devices in an audio environment, each echo reference corresponding to audio data being played back by one or more loudspeakers of one audio device of the plurality of audio devices. Some examples involve making an importance estimation for each echo reference of the plurality of echo references. Making the importance estimation may involve determining an expected contribution of each echo reference to mitigation of echo by at least one echo management system of at least one audio device of the audio environment. Some implementations involve selecting, based at least in part on the importance estimation, one or more selected echo references and providing the one or more selected echo references to the at least one echo management system.
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公开(公告)号：US20230319190A1
公开(公告)日：2023-10-05
申请号：US17628732
申请日：2020-07-29
Inventor： Glenn N. DICKINS , Christopher Graham HINES , David GUNAWAN , Richard J. CARTWRIGHT , Alan J. SEEFELDT , Daniel Arteaga , Mark R.P. THOMAS , Joshua B. LANDO
CPC classification number: H04M9/082 , G10L2015/223 , G10L15/22
Abstract: An audio processing method may involve receiving output signals from each microphone of a plurality of microphones in an audio environment, the output signals corresponding to a current utterance of a person and determining, based on the output signals, one or more aspects of context information relating to the person, including an estimated current proximity of the person to one or more microphone locations. The method may involve selecting two or more loudspeaker-equipped audio devices based, at least in part, on the one or more aspects of the context information, determining one or more types of audio processing changes to apply to audio data being rendered to loudspeaker feed signals for the audio devices and causing one or more types of audio processing changes to be applied. In some examples, the audio processing changes have the effect of increasing a speech to echo ratio at one or more microphones.
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公开(公告)号：US20220345820A1
公开(公告)日：2022-10-27
申请号：US17631024
申请日：2020-07-27
Inventor： Glenn N. DICKINS , Richard J. CARTWRIGHT , David GUNAWAN , Christopher Graham HINES , Mark R. P. THOMAS , Alan J. SEEFELDT , Joshua B. LANDO , Carlos Eduardo Medaglia DYONISIO , Daniel ARTEAGA
Abstract: An audio session management method for an audio environment having multiple audio devices may involve receiving, from a first device implementing a first application and by a device implementing an audio session manager, a first route initiation request to initiate a first route for a first audio session. The first route initiation request may indicate a first audio source and a first audio environment destination. The first audio environment destination may correspond with at least a first person in the audio environment, but in some instances will not indicate an audio device. The method may involve establishing a first route corresponding to the first route initiation request. Establishing the first route may involve determining a first location of at least the first person in the audio environment, determining at least one audio device for a first stage of the first audio session and initiating or scheduling the first audio session.
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