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11.发明申请Method for Controlling Acoustic Echo Cancellation and Audio Processing Apparatus 有权控制声学回声消除和音频处理装置的方法公开(公告)号：US20150332704A1
公开(公告)日：2015-11-19
申请号：US14651564
申请日：2013-11-25
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Xuejing SUN , Dong SHI , Kai LI
IPC: G10L21/0208 , G10L21/0264
CPC classification number: G10L21/0208 , G10L21/0264 , G10L2021/02082 , H04B3/23 , H04L49/90 , H04M9/082
Abstract: A method for controlling acoustic echo cancellation and an audio processing apparatus are described. In one embodiment, the audio processing apparatus includes an acoustic echo canceller for suppressing acoustic echo in a microphone signal, a jitter buffer for reducing delay jitter of a received signal, and a joint controller for controlling the acoustic echo canceller by referring to at least one future frame in the jitter buffer.
Abstract translation: 描述了一种用于控制声学回波消除的方法和一种音频处理装置。 在一个实施例中，音频处理装置包括用于抑制麦克风信号中的声学回声的声学回声消除器，用于减少接收信号的延迟抖动的抖动缓冲器以及用于通过参考至少一个 抖动缓冲区中的未来帧。
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公开(公告)号：US20230121651A1
公开(公告)日：2023-04-20
申请号：US18082470
申请日：2022-12-15
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Dong SHI , Kai LI , Hannes MUESCH , David GUNAWAN , Paul HOLMBERG , Glenn N. DICKINS
IPC: G10L21/0232 , H04R3/02 , G10L21/0264 , H04R3/04
Abstract: Methods for echo estimation or echo management (echo suppression or cancellation) on an input audio signal, with at least one of adaptation of a sparse prediction filter set, modification (for example, truncation) of adapted prediction filter impulse responses, generation of a composite impulse response from adapted prediction filter impulse responses, or use of echo estimation and/or echo management resources in a manner determined at least in part by classification of the input audio signal as being (or not being) echo free. Other aspects are systems configured to perform any embodiment of any of the methods.
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公开(公告)号：US20190156852A1
公开(公告)日：2019-05-23
申请号：US16308761
申请日：2017-06-07
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Dong SHI , Kai LI , Hannes MUESCH , David GUNAWAN , Paul HOLMBERG , Glenn N. DICKINS
IPC: G10L21/0232 , G10L21/0264 , H04R3/04
Abstract: Methods for echo estimation or echo management (echo suppression or cancellation) on an input audio signal, with at least one of adaptation of a sparse prediction filter set, modification (for example, truncation) of adapted prediction filter impulse responses, generation of a composite impulse response from adapted prediction filter impulse responses, or use of echo estimation and/or echo management resources in a manner determined at least in part by classification of the input audio signal as being (or not being) echo free. Other aspects are systems configured to perform any embodiment of any of the methods.
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公开(公告)号：US20180018984A1
公开(公告)日：2018-01-18
申请号：US15648111
申请日：2017-07-12
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Glenn N. DICKINS , Paul HOLMBERG , Dong SHI
IPC: G10L21/02 , H04R29/00 , G10L21/0232 , G10L21/0216 , G10L21/0208
CPC classification number: G10L21/0205 , G10L21/0232 , G10L25/48 , G10L2021/02082 , G10L2021/02163 , H04R29/00 , H04S7/301 , H04S7/305
Abstract: Example embodiments disclosed herein relate to assessment and adjustment for an audio environment. A computer-implemented method is provided. The method includes obtaining a first audio signal captured by a device located in an environment. The method also includes analyzing a characteristic of the first audio signal to determine an acoustic performance metric for the environment. The method further includes, in response to the acoustic performance metric being below a threshold, providing a first task for a user to perform based on the characteristic of the first audio signal. The first task is related to an adjustment to a setting of the environment. Embodiments in this regard further provide a corresponding computer program product. Corresponding system and computer program product are also disclosed.
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公开(公告)号：US20170324931A1
公开(公告)日：2017-11-09
申请号：US15527181
申请日：2015-11-17
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Xuejing SUN , Dong SHI , Shen HUANG , Kai LI , Hannes MUESCH , Glenn N. DICKINS , Gary SPITTLE
CPC classification number: H04N7/147 , H04L12/1827 , H04N7/15 , H04S2400/15
Abstract: Example embodiments disclosed herein relate to spatial congruency adjustment. A method for adjusting spatial congruency in a video conference is disclosed. The method includes detecting spatial congruency between a visual scene captured by a video endpoint device and an auditory scene captured by an audio endpoint device that is positioned in relation to the video endpoint device, the spatial congruency being a degree of alignment between the auditory scene and the visual scene, comparing the detected spatial congruency with a predefined threshold and in response to the detected spatial congruency being below the threshold, adjusting the spatial congruency. Corresponding system and computer program products are also disclosed.
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Patent Agency Ranking
公开(公告)号：US20190066654A1
公开(公告)日：2019-02-28
申请号：US16073390
申请日：2017-02-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Glenn N. DICKINS , Dong SHI , David GUNAWAN
IPC: G10K11/178
Abstract: Described herein is a method and audio capture system for suppressing noise due to mechanical disturbances in an audio capture system. In one embodiment a method includes the steps of: a) receiving an input audio signal from a microphone; b) receiving an input reference signal separate from the input audio signal; c) processing the input reference signal to generate a control signal for identifying a noise event; d) in response to the control signal, estimating a contribution of the noise event to the input audio signal by applying an adaptive filter to a sliding temporal window of the control signal in the frequency domain; and e) based on the estimated contribution, selectively modifying the input audio signal to generate an output audio signal in which the noise arising from the noise event is at least partially suppressed.
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公开(公告)号：US20180254053A1
公开(公告)日：2018-09-06
申请号：US15753070
申请日：2016-09-15
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Dong SHI , Xuejing SUN
CPC classification number: G10L25/18 , G10L25/48 , H03H17/0227 , H03H17/0294 , H03H21/0025 , H03H21/0043
Abstract: Example embodiments disclosed herein relate to filter coefficient updating in time domain filtering. A method of processing an audio signal is disclosed. The method includes obtaining a predetermined number of target gains for a first portion of the audio signal by analyzing the first portion of the audio signal. Each of the target gains is corresponding to a linear subband of the audio signal. The method also includes determining a filter coefficients for time domain filtering the first portion of the audio signal so as to approximate a frequency response given by the target gains. The filter coefficients are determined by iteratively selecting at least one target gain from the target gains and updating the filter coefficient based on the selected at least one target gain. Corresponding system and computer program product for processing an audio signal are also disclosed.
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公开(公告)号：US20180167515A1
公开(公告)日：2018-06-14
申请号：US15573049
申请日：2016-05-26
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Dong SHI , Xuejing SUN , Zhiwei SHUANG
CPC classification number: H04M3/568 , G10L21/02 , H04M1/2471 , H04M1/2477 , H04M3/563 , H04M9/082 , H04M2203/053 , H04N7/147 , H04N7/15
Abstract: Example embodiments disclosed herein relate to audio signal processing based on remote user control. A method of processing an audio signal in an audio sender device is disclosed. The method includes receiving, at a current device, a control parameter from a remote device, the control parameter being generated based on a user input of the remote device and specifying a user preference for an audio signal to be transmitted to the remote device. The method also includes processing the audio signal based on the received control parameter and transmitting the processed audio signal to the remote device. Corresponding computer program product of processing an audio signal and corresponding device are also disclosed. Corresponding method in an audio receiver device and computer program product of processing an audio signal as well as corresponding device are also disclosed.
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公开(公告)号：US20180139537A1
公开(公告)日：2018-05-17
申请号：US15577618
申请日：2016-05-26
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Dong SHI , Xuejing SUN
CPC classification number: H04R3/04 , G06F3/165 , G10L21/02 , G10L21/0232 , G10L25/18 , G10L25/21 , G10L25/48 , H03G3/3005 , H03G5/025 , H03G5/165
Abstract: Example embodiments disclosed herein relate to separated audio analysis and processing. A system for processing an audio signal is disclosed. The system includes an audio analysis module configured to analyze an input audio signal to determine a processing parameter for the input audio signal, the input audio signal being represented in time domain. The system also includes an audio processing module configured to process the input audio signal in parallel with the audio analysis module. The audio processing module includes a time domain filter configured to filter the input audio signal to obtain an output audio signal in the time domain, and a filter controller configured to control a filter coefficient of the time domain filter based on the processing parameter determined by the audio analysis module. Corresponding method and computer program product of processing an audio signal are also disclosed.
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公开(公告)号：US20180132038A1
公开(公告)日：2018-05-10
申请号：US15803456
申请日：2017-11-03
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Glenn N. DICKINS , Dong SHI , Andrew BORDER , David GUNAWAN
IPC: H04R3/02 , G10L21/0232 , H04R3/04 , H04R29/00
CPC classification number: H04R3/02 , G10L21/0232 , G10L2021/02082 , H04M3/56 , H04M9/082 , H04N7/147 , H04R3/04 , H04R27/00 , H04R29/001
Abstract: Systems and methods are described for analyzing and resolving feedback caused by having multiple audio links in a conference room. An audio system may detect the presence of duplicated audio caused by multiple audio links in the conference room. Marker signals may be injected into the conference room or over the network in response to detecting the duplicated audio. Echoes of the marker signals may be received, and the system may determine which case corresponds to the detected duplicated audio based on the received echo of the marker signals. Based on the determined case, operation of at least one of the speaker and the microphone may be modified. After the modification, audio playback in the conference room may be monitored to verify that far end audio playback is taking place and that the duplicated audio has been resolved.
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