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公开(公告)号：US20220272454A1
公开(公告)日：2022-08-25
申请号：US17630917
申请日：2020-07-27
Inventor： Alan J. SEEFELDT , Joshua B. LANDO , Daniel ARTEAGA , Mark R.P THOMAS , Glenn N. DICKINS
Abstract: A multi-stream rendering system and method may render and play simultaneously a plurality of audio program streams over a plurality of arbitrarily placed loudspeakers. At least one of the program streams may be a spatial mix. The rendering of said spatial mix may be dynamically modified as a function of the simultaneous rendering of one or more additional program streams. The rendering of one or more additional program streams may be dynamically modified as a function of the simultaneous rendering of the spatial mix.
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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：US20210337299A1
公开(公告)日：2021-10-28
申请号：US17273915
申请日：2019-09-09
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Glenn N. DICKINS , Joshua Brandon LANDO , Andy JASPAR , C. Phillip BROWN , Phillip WILLIAMS
Abstract: An audio processing method may involve receiving media input audio data corresponding to a media stream and headphone microphone input audio data, determining a media audio gain for at least one of a plurality of frequency bands of the media input audio data and determining a headphone microphone audio gain for at least one of a plurality of frequency bands of the headphone microphone input audio data. Determining the headphone microphone audio gain may involve determining a feedback risk control value, for at least one of the plurality of frequency bands, corresponding to a risk of headphone feedback between at least one external microphone of a headphone microphone system and at least one headphone speaker and determining a headphone microphone audio gain that will mitigate actual or potential headphone feedback in at least one of the plurality of frequency bands, based at least partly upon the feedback risk control value.
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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：US20190058944A1
公开(公告)日：2019-02-21
申请号：US16078563
申请日：2017-02-23
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： David GUNAWAN , Glenn N. DICKINS
Abstract: A method of processing a series of microphone inputs of an audio conference, the method including the steps of: (a) conducting a spatial analysis and feature extraction of the audio conference based on current audio activity; (b) aggregating historical information to obtain information about the approximate relative location of recent sound objects relative to the series of microphone inputs; (c) utilising the relative location or distance of the sound objects from the series of microphone inputs to determine if beam forming should be utilised to enhance the audio reception from recent sound objects.
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Patent Agency Ranking
公开(公告)号：US20180167581A1
公开(公告)日：2018-06-14
申请号：US15838728
申请日：2017-12-12
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Erwin GOESNAR , Hannes MUESCH , David GUNAWAN , Michael ECKERT , Glenn N. DICKINS
CPC classification number: H04N7/15 , G01S3/80 , G06K9/00664 , G06K9/3275 , G06K2009/3225 , G06K2209/03 , G06T7/70 , H04L12/1827 , H04M3/56 , H04M3/567 , H04N7/142 , H04N7/147 , H04R3/12 , H04R2499/11 , H04S7/303 , H04S2400/15
Abstract: Systems and methods are described for determining orientation of an external audio device in a video conference, which may be used to provide congruent multimodal representation for a video conference. A camera of a video conferencing system may be used to detect a potential location of an external audio device within a room in which the video conferencing system is providing a video conference. Within the detected potential location, a visual pattern associated with the external audio device may be identified. Using the identified visual pattern, the video conferencing system may estimate an orientation of the external audio device, the orientation being used by the video conferencing system to provide spatial audio video congruence to a far end audience.
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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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公开(公告)号：US20170208409A1
公开(公告)日：2017-07-20
申请号：US15480163
申请日：2017-04-05
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Richard J. CARTWRIGHT , David S. MCGRATH , Glenn N. DICKINS
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 comprises apparatus to deliver the audio soundfields to the listener. The delivery apparatus delivers the audio soundfields to the listener with first and second audio elements perceived by the listener as emanating from first and second virtual source locations, respectively, and with the first audio element and/or the second audio element delivered to the listener from a third virtual source location. The first virtual source location and the second virtual source location are perceived by the listener as being located to the front of the listener, and the third virtual source location is located to the rear or the side of the listener.
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公开(公告)号：US20170118142A1
公开(公告)日：2017-04-27
申请号：US15397990
申请日：2017-01-04
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Glenn N. DICKINS , Xuejing SUN , Brendon COSTA
IPC: H04L12/861 , G10L25/78 , G10L19/16 , H04M3/56 , H04L29/06
CPC classification number: H04L49/90 , G10L19/167 , G10L25/78 , H04L65/1066 , H04M3/569
Abstract: Voice communication method and apparatus and method and apparatus for operating jitter buffer are described. Audio blocks are acquired in sequence. Each of the audio blocks includes one or more audio frames. Voice activity detection is performed on the audio blocks. In response to deciding voice onset for a present one of the audio blocks, a subsequence of the sequence of the acquired audio blocks is retrieved. The subsequence precedes the present audio block immediately. The subsequence has a predetermined length and non-voice is decided for each audio block in the subsequence. The present audio block and the audio blocks in the subsequence are transmitted to a receiving party. The audio blocks in the subsequence are identified as reprocessed audio blocks. In response to deciding non-voice for the present audio block, the present audio block is cached.
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公开(公告)号：US20170078488A1
公开(公告)日：2017-03-16
申请号：US15121859
申请日：2015-02-17
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Richard J. CARTWRIGHT , Glenn N. DICKINS
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.
Abstract translation: 在采用会议参与者的输入音频信息的多个音频输入流的类型的音频会议混合系统中，包括混合转换事件并输出包括输出音频信息的多个音频输出流，一种将音频输出流混合的方法 为了降低混合转移事件的可检测性，该方法包括以下步骤：（a）确定发生转移事件; （b）确定将发生掩蔽触发; （c）当所述屏蔽事件发生时，调度所述转换事件基本上发生。 改变失明机制来掩盖音频会议组合的变化，并维持感知连续性。
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