公开(公告)号：US20200227063A1

公开(公告)日：2020-07-16

申请号：US16631159

申请日：2018-07-13

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Glenn N. Dickins ,  Tet Fei Yap ,  Guodong Li ,  Paul Holmberg

IPC: G10L21/0232 ,  G10L21/0264 ,  H04S3/00 ,  H04R5/02 ,  G10L25/21 ,  H04S7/00

Abstract: Systems and methods are described for compensating for inaccurate echo prediction in audio systems. A signal may be received at a microphone of an audio system, the signal including audio rendered using a spatial audio renderer across a multi-channel audio output. A signal may be received from the spatial audio renderer that indicates a change in rendering of audio. The audio system may then determine if there is echo power within the received signal greater than an expected echo power. After the signal from the spatial audio renderer has been received, the echo suppression applied to the received signal may be modified in response to a determination that the echo power is greater than the expected echo power, the echo suppression attenuating pre-selected frequency bands of the received signal.

公开(公告)号：US11803351B2

公开(公告)日：2023-10-31

申请号：US17601199

申请日：2020-04-03

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Glenn N. Dickins ,  Feng Deng ,  Michael Eckert ,  Craig Johnston ,  Paul Holmberg

IPC: G06F3/16 ,  H04L65/403 ,  H04M3/56

CPC classification number: G06F3/165 ,  H04L65/403 ,  H04M3/568

Abstract: A communication system, method, and computer-readable medium therefor comprise a media server configured to receive a plurality of audio streams from a corresponding plurality of client devices, the media server including circuitry configured to rank the plurality of audio streams based on a predetermined metric, group a first portion of the plurality of audio streams into a first set, the first portion of the plurality of audio streams being the N highest-ranked audio streams, group a second portion of the plurality of audio streams into a second set, the second portion of the plurality of audio streams being the M lowest-ranked audio streams, forward respective audio streams of the first set to a receiver device, and discard respective audio streams of the second set, wherein N and M are independent integers.

公开(公告)号：US11100942B2

公开(公告)日：2021-08-24

申请号：US16631159

申请日：2018-07-13

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Glenn N. Dickins ,  Tet Fei Yap ,  Guodong Li ,  Paul Holmberg

IPC: G10L21/0232 ,  G10L21/0264 ,  G10L25/21 ,  H04R5/02 ,  H04S3/00 ,  H04S7/00 ,  G10L21/0208 ,  H04M9/08

Abstract: Systems and methods are described for compensating for inaccurate echo prediction in audio systems. A signal may be received at a microphone of an audio system, the signal including audio rendered using a spatial audio renderer across a multi-channel audio output. A signal may be received from the spatial audio renderer that indicates a change in rendering of audio. The audio system may then determine if there is echo power within the received signal greater than an expected echo power. After the signal from the spatial audio renderer has been received, the echo suppression applied to the received signal may be modified in response to a determination that the echo power is greater than the expected echo power, the echo suppression attenuating pre-selected frequency bands of the received signal.

公开(公告)号：US20150078594A1

公开(公告)日：2015-03-19

申请号：US14385083

申请日：2013-03-21

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： David S. Mcgrath ,  Glenn N. Dickins ,  Paul Holmberg ,  Gary Spittle ,  Michael Eckert

IPC: H04S3/00 ,  H04M3/56

CPC classification number: H04S3/002 ,  H04M3/568 ,  H04S7/30 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/01

Abstract: A method of outputting audio in a teleconferencing environment includes receiving audio streams, processing the audio streams according to information regarding effective spatial positions, and outputting, by at least three speakers arranged in more than one dimension, the audio streams having been processed. The information regarding the plurality of effective spatial positions corresponds to a perceived spatial scene that extends beyond the speakers in at least two dimensions. In this manner, participants in the teleconference perceive the audio from the remote participants as originating at different positions in the teleconference room.

Abstract translation: 在电话会议环境中输出音频的方法包括接收音频流，根据关于有效空间位置的信息来处理音频流，并且通过至少三个扬声器以多于一维的方式输出已经处理的音频流。 关于多个有效空间位置的信息对应于在至少两个维度上延伸超出扬声器的感知空间场景。 以这种方式，电话会议中的参与者将来自远程参与者的音频感知为来自电话会议室中的不同位置。