公开(公告)号：US12273698B2

公开(公告)日：2025-04-08

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 ,  H04B1/707

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.

公开(公告)号：US20240267469A1

公开(公告)日：2024-08-08

申请号：US18638588

申请日：2024-04-17

Applicant: Dolby Laboratories Licensing Corporation ,  Dolby International AB

Inventor： Glenn N. DICKINS ,  Christopher Graham Hines ,  David GUNAWAN ,  Richard J. CARTWRIGHT ,  Alan J. SEEFELDT ,  Daniel ARTEAGA ,  Mark R.P. THOMAS ,  Joshua B. LANDO

IPC: H04M9/08 ,  G10L15/22

CPC classification number: H04M9/082 ,  G10L15/22 ,  G10L2015/223

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.

公开(公告)号：US20240163340A1

公开(公告)日：2024-05-16

申请号：US18415544

申请日：2024-01-17

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  Dolby International AB

Inventor： Glenn N. Dickins ,  Mark R.P. Thomas ,  Alan J. Seefeldt ,  Joshua B. Lando ,  Daniel Arteaga ,  Carlos Medaglia Dyonisio ,  David Gunawan ,  Richard J. Cartwright ,  Christopher Graham Hines

IPC: H04L67/141 ,  H04R1/32 ,  H04R1/40 ,  H04R3/00 ,  H04R3/12 ,  H04S7/00

CPC classification number: H04L67/141 ,  H04R1/326 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/12 ,  H04S7/303

Abstract: 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.

公开(公告)号：US11895369B2

公开(公告)日：2024-02-06

申请号：US16640035

申请日：2018-08-22

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Christopher Graham Hines

IPC: H04N21/433 ,  H04N21/472 ,  H04N21/435 ,  H04N21/439 ,  H04N21/44 ,  H04N21/462 ,  H04N21/4728 ,  H04N21/6587 ,  H04N21/845 ,  H04N21/43

CPC classification number: H04N21/47217 ,  H04N21/435 ,  H04N21/4333 ,  H04N21/43072 ,  H04N21/4394 ,  H04N21/4398 ,  H04N21/44016 ,  H04N21/4621 ,  H04N21/4728 ,  H04N21/6587 ,  H04N21/8455

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.

公开(公告)号：US20230208921A1

公开(公告)日：2023-06-29

申请号：US17630779

申请日：2020-07-28

Applicant: DOLBY INTERNATIONAL AB ,  DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Glenn N. Dickins ,  Mark Richard Paul Thomas ,  Alan J. Seefeldt ,  Joshua B. Lando ,  Daniel Arteaga ,  Carlos Medaglia Dyonisio ,  David Gunawan ,  Richard J. Cartwright ,  Christopher Graham Hines

IPC: H04L67/141 ,  H04S7/00 ,  H04R1/32 ,  H04R1/40 ,  H04R3/00 ,  H04R3/12

CPC classification number: H04L67/141 ,  H04S7/303 ,  H04R1/326 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/12

Abstract: 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.

公开(公告)号：US11195539B2

公开(公告)日：2021-12-07

申请号：US17261884

申请日：2019-07-26

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Christopher Graham Hines ,  Glenn N. Dickins

IPC: G10L21/0232 ,  G10K11/178 ,  G10L21/0208

Abstract: A pervasive listening method including steps of inserting at least one forced gap in a playback signal (thus generating a modified playback signal), and during playback of the modified playback signal, monitoring non-playback content (e.g., including by generating an estimate of background noise) in a playback environment using output of a microphone in the playback environment. Optionally, the method includes generation of the playback signal, including by processing of (e.g., performing noise compensation on) an input signal using a result (e.g., a background noise estimate) of the monitoring of non-playback content. Other aspects are systems configured to perform any embodiment of the pervasive listening method.