公开(公告)号：US12243548B2

公开(公告)日：2025-03-04

申请号：US17781622

申请日：2020-12-08

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Benjamin Alexander Jancovich ,  Timothy Alan Port ,  Andrew P. Reilly ,  Richard J. Cartwright

IPC: G10L21/0232 ,  G06F3/16 ,  G10L15/22 ,  G10L25/51 ,  H03G3/32 ,  H03G9/02 ,  H04M9/08 ,  H04R1/08 ,  H04R1/40 ,  H04R3/00 ,  H04R3/02 ,  H04R3/04 ,  H04R3/12 ,  H04R29/00

Abstract: Some noise compensation methods involve receiving microphone signals corresponding to ambient noise from a noise source location in or near an audio environment, determining or estimating a listener position in the audio environment and estimating at least one critical distance, which is a distance from the noise source location at which directly propagated sound pressure is equal to diffuse field sound pressure. Some examples involve estimating whether the listener position is within the at least one critical distance and implementing a noise compensation method for the ambient noise based, at least in part, on an estimate of whether the listener position is within the critical distance.

公开(公告)号：US11996108B2

公开(公告)日：2024-05-28

申请号：US17632220

申请日：2020-07-30

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jia Dai ,  Kai Li ,  Richard J. Cartwright

IPC: G06N20/00 ,  G10L19/005 ,  G10L19/02 ,  G10L25/18 ,  G10L25/21 ,  H04M3/56

CPC classification number: G10L19/0208 ,  G06N20/00 ,  G10L19/005 ,  G10L25/18 ,  G10L25/21 ,  H04M3/568

Abstract: The present disclosure relates to the field of audio enhancement, and in particular to methods, devices and software for supervised training of a machine learning model, MLM, the MLM trained to enhance a degraded audio signal by calculating gains to be applied to frequency bands of the degraded audio signal. The present disclosure further relates to methods, devices and software for use of such a trained MLM.

公开(公告)号：US20220270625A1

公开(公告)日：2022-08-25

申请号：US17632220

申请日：2020-07-30

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jia Dai ,  Kai Li ,  Richard J. Cartwright

IPC: G10L19/02 ,  G10L25/18 ,  G10L25/21 ,  G10L19/005 ,  G06N20/00

Abstract: The present disclosure relates to the field of audio enhancement, and in particular to methods, devices and software for supervised training of a machine learning model, MLM, the MLM trained to enhance a degraded audio signal by calculating gains to be applied to frequency bands of the degraded audio signal. The present disclosure further relates to methods, devices and software for use of such a trained MLM.

公开(公告)号：US10057707B2

公开(公告)日：2018-08-21

申请号：US15546576

申请日：2016-02-03

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Richard J. Cartwright ,  Hannes Muesch

IPC: H04S7/00 ,  H04S3/00 ,  G10L25/78 ,  H04M3/42 ,  H04M3/56

CPC classification number: H04S7/303 ,  G10L25/78 ,  H04M3/42221 ,  H04M3/56 ,  H04M3/568 ,  H04R1/1016 ,  H04R2420/07 ,  H04S3/008 ,  H04S7/302 ,  H04S2400/01 ,  H04S2400/11

Abstract: Various disclosed implementations involve processing and/or playback of a recording of a conference involving a plurality of conference participants. Some implementations involve receiving or determining conversational dynamics data. One or more variables of a cost function may be based, at least in part, on the conversational dynamics data. The cost function may be a spatial optimization cost function of a vector describing a virtual conference participant position for each of the conference participants in a virtual acoustic space. The virtual acoustic space may be determined relative to a listener's head. The virtual conference participant positions may be assigned according to a solution of the cost function.

公开(公告)号：US09876913B2

公开(公告)日：2018-01-23

申请号：US15121859

申请日：2015-02-17

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Richard J. Cartwright ,  Glenn N. Dickins

IPC: H04M3/56 ,  G10L15/08 ,  G10L21/02 ,  G10L25/78 ,  H04W52/02 ,  H04R3/00 ,  G10L25/87

CPC classification number: H04M3/568 ,  G10L15/08 ,  G10L21/02 ,  G10L25/78 ,  G10L25/87 ,  H04M3/563 ,  H04M2201/14 ,  H04R3/005 ,  H04R2420/01 ,  H04W52/0229 ,  Y02D70/23 ,  Y02D70/25

Abstract: In an audio conferencing mixing system of the type taking a plurality of audio input streams of input audio information of conference participants, including mixing transition events and outputting a plurality of audio output streams including output audio information, a method of mixing the audio output streams so as to reduce the detectability of the mixing transition events, the method including the steps of (a) determining that a transition event is to occur; (b) determining that a masking trigger is to occur; (c) scheduling the transition event to substantially occur when the masking event occurs. Change blindness mechanism to mask changes in audio conference mix and maintain perceptual continuity.

公开(公告)号：US09648439B2

公开(公告)日：2017-05-09

申请号：US14774943

申请日：2014-03-11

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Richard J. Cartwright ,  David S. McGrath ,  Glenn N. Dickins

IPC: H04R5/02 ,  H04S7/00 ,  H04M3/56

CPC classification number: H04S1/005 ,  H04M3/568 ,  H04S7/30 ,  H04S7/304 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/01 ,  H04S2420/11

Abstract: A computer implemented system for rendering captured audio soundfields to a listener (4) comprises apparatus (10) to deliver the audio soundfields to the listener (4). The delivery apparatus (10) delivers the audio soundfields to the listener (4) with first and second audio elements perceived by the listener (4) as emanating from first and second virtual source locations (1), respectively, and with the first audio element and/or the second audio element delivered to the listener (4) from a third virtual source location (3). The first virtual source location (1) and the second virtual source location (2) are perceived by the listener (4) as being located to the front of the listener (4), and the third virtual source location (3) is located to the rear or the side of the listener (4).

公开(公告)号：US12175965B2

公开(公告)日：2024-12-24

申请号：US17629924

申请日：2020-07-25

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Richard J. Cartwright

IPC: G10L15/02 ,  G10L15/16 ,  G10L15/22 ,  G10L15/30

Abstract: A feature vector may be extracted from each frame of input digitized microphone audio data. The feature vector may include a power value for each frequency band of a plurality of frequency bands. A feature history data structure, including a plurality of feature vectors, may be formed. A normalized feature set that includes a normalized feature data structure may be produced by determining normalized power values for a plurality of frequency bands of each feature vector of the feature history data structure. A signal recognition or modification process may be based, at least in part, on the normalized feature data structure.

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：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：US20230037824A1

公开(公告)日：2023-02-09

申请号：US17781632

申请日：2020-12-08

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Benjamin Alexander Jancovich ,  Timothy Alan Port ,  Andrew P. Reilly ,  Richard J. Cartwright

IPC: H04R3/12 ,  G06F3/16 ,  H04R1/40 ,  H04R3/00 ,  H04R29/00

Abstract: Noise compensation method comprising: (a) receiving a content stream including content audio data; (b) receiving first microphone signals from a first device; (c) detecting ambient noise from a noise source location in or near the audio environment; (d) causing a first wireless signal to be transmitted from the first device to a second device, the first wireless signal including instructions for the second device to record an audio segment (e) receiving a second wireless signal from the second device; (f) determining a content stream audio segment time interval for a content stream audio segment; (g) receiving a third wireless signal from the second device, including a recorded audio segment captured via a second device microphone; (h) determining a second device ambient noise signal at the second device location; and (i) implementing a noise compensation method for the content audio data based, at least in part, on the second device ambient noise signal.