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1. 发明授权

US10959032B2 System and method for spatial processing of soundfield signals 有权
公开(公告)号：US10959032B2
公开(公告)日：2021-03-23
申请号：US16077040
申请日：2017-02-09
申请人： Dolby Laboratories Licensing Corporation
发明人： Glenn N. Dickins , David Gunawan
IPC分类号： H04S7/00 , H04S3/00 , G06F3/01 , G06F3/0481 , G10L19/008 , H04R1/40
摘要： A method for interactive and user guided manipulation of multichannel audio content, the method including the steps of: providing a content preview facility for replay and review of multichannel audio content by a user; providing a user interface for the user selection of a segment of multichannel audio content having an unsatisfactory audio content; processing the audio content to include associated audio object activity spatial or signal space regions, to create a time line of activity where one or more spatial or signal space regions are active at any given time; matching the user's gesture input against at least one of the active spatial or signal space regions; signal processing the audio emanating from selected active spatial or signal space region using a number of differing techniques to determine at least one processed alternative; providing the user with an interactive playback facility to listen to the processed alternative.

2. 发明授权

US10079941B2 Audio capture and render device having a visual display and user interface for use for audio conferencing 有权
公开(公告)号：US10079941B2
公开(公告)日：2018-09-18
申请号：US14788963
申请日：2015-07-01
申请人： Dolby Laboratories Licensing Corporation
发明人： Glenn N. Dickins , Gary Spittle , David Gunawan , Anthony Tucker
IPC分类号： H04M9/08 , H04M3/56
CPC分类号： H04M9/085 , G10L21/0272 , H04M3/567 , H04M3/568
摘要： A method in a soundfield-capturing endpoint and the capturing endpoint that comprises a microphone array capturing soundfield, and an input processor pre-processing and performing auditory scene analysis to detect local sound objects and positions, de-clutter the sound objects, and integrate with auxiliary audio signals to form a de-cluttered local auditory scene that has a measure of plausibility and perceptual continuity. The input processor also codes the resulting de-cluttered auditory scene to form coded scene data comprising mono audio and additional scene data to send to others. The endpoint includes an output processor generating signals for a display unit that displays a summary of the de-cluttered local auditory scene and/or a summary of activity in the communication system from received data, the display including a shaped ribbon display element that has an extent with locations on the extent representing locations and other properties of different sound objects.

3. 发明授权

US09451379B2 Sound field analysis system 有权
标题翻译：声场分析系统
公开(公告)号：US09451379B2
公开(公告)日：2016-09-20
申请号：US14187616
申请日：2014-02-24
申请人： Dolby Laboratories Licensing Corporation
发明人： David Gunawan , Dong Shi , Glenn N. Dickins
IPC分类号： H04S1/00 , H04R3/00 , H04R5/027 , H04S3/00 , H04S7/00 , G01S3/802 , G10L19/008
CPC分类号： H04S7/30 , G01S3/802 , G10L19/008 , H04S2400/15
摘要： In one embodiment, a sound field is mapped by extracting spatial angle information, diffusivity information, and optionally, sound level information. The extracted information is mapped for representation in the form of a Riemann sphere, wherein spatial angle varies longitudinally, diffusivity varies latitudinally, and level varies radially along the sphere. A more generalized mapping employs mapping the spatial angle and diffusivity information onto a representative region exhibiting variations in direction of arrival that correspond to the extracted spatial information and variations in distance that correspond to the extracted diffusivity information.
摘要翻译：在一个实施例中，通过提取空间角度信息，扩散性信息和可选地声级信息来映射声场。所提取的信息被映射为黎曼球形式的表示，其中空间角度纵向变化，扩散性在纬度上变化，并且水平面沿球体径向变化。更广义的映射将空间角度和扩散度信息映射到呈现对应于提取的空间信息的距离方向的变化方向的代表区域和对应于提取的扩散率信息的距离变化。

4. 发明授权

US09373343B2 Method and system for signal transmission control 有权
标题翻译：信号传输控制方法与系统
公开(公告)号：US09373343B2
公开(公告)日：2016-06-21
申请号：US14382667
申请日：2013-03-21
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Glenn N. Dickins , Zhiwei Shuang , David Gunawan , Xuejing Sun
IPC分类号： G10L25/78 , G10L25/48 , G10L25/84
CPC分类号： G10L25/84 , G10L25/78 , G10L2025/783
摘要： An audio signal with a temporal sequence of blocks or frames is received or accessed. Features are determined as characterizing aggregately the sequential audio blocks/frames that have been processed recently, relative to current time. The feature determination exceeds a specificity criterion and is delayed, relative to the recently processed audio blocks/frames. Voice activity indication is detected in the audio signal. VAD is based on a decision that exceeds a preset sensitivity threshold and is computed over a brief time period, relative to blocks/frames duration, and relates to current block/frame features. The VAD and the recent feature determination are combined with state related information, which is based on a history of previous feature determinations that are compiled from multiple features, determined over a time prior to the recent feature determination time period. Decisions to commence or terminate the audio signal, or related gains, are outputted based on the combination.
摘要翻译：具有块或帧的时间序列的音频信号被接收或访问。确定特征是综合表征最近相对于当前时间最近处理的顺序音频块/帧。相对于最近处理的音频块/帧，特征确定超过特定性标准并被延迟。在音频信号中检测到语音活动指示。 VAD基于超过预设灵敏度阈值的决定，并且相对于块/帧持续时间在短时间段内计算，并且涉及当前块/帧特征。 VAD和最近的特征确定与状态相关信息相结合，状态相关信息基于在最近的特征确定时间段之前的时间确定的从多个特征编译的先前特征确定的历史。基于该组合输出开始或终止音频信号或相关增益的决定。

5. 发明授权

US09373341B2 Method and system for bias corrected speech level determination 有权
标题翻译：用于偏差校正语音级别确定的方法和系统
公开(公告)号：US09373341B2
公开(公告)日：2016-06-21
申请号：US14384586
申请日：2013-03-21
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： David Gunawan , Glenn Dickins
IPC分类号： G10L25/78 , G10L21/0316 , G10L25/48 , G10L25/18 , G10L25/21
CPC分类号： G10L21/0316 , G10L25/18 , G10L25/21 , G10L25/48 , G10L25/78
摘要： Method for measuring level of speech determined by an audio signal in a manner which corrects for and reduces the effect of modification of the signal by the addition of noise thereto and/or amplitude compression thereof, and a system configured to perform any embodiment of the method. In some embodiments, the method includes steps of generating frequency banded, frequency-domain data indicative of an input speech signal, determining from the data a Gaussian parametric spectral model of the speech signal, and determining from the parametric spectral model an estimated mean speech level and a standard deviation value for each frequency band of the data; and generating speech level data indicative of a bias corrected mean speech level for each frequency band, including using at least one correction value to correct the estimated mean speech level for the frequency band, where each correction value has been predetermined using a reference speech model.
摘要翻译：一种用音频信号测定的语音水平的方法，该方法通过增加噪声对其进行修正和/或降低其变化的影响和/或对其进行幅度压缩，以及被配置为执行该方法的任何实施例的系统。在一些实施例中，该方法包括以下步骤：产生表示输入语音信号的频带，频域数据，根据数据确定语音信号的高斯参数频谱模型，以及从参数频谱模型确定估计的平均语音电平和数据的每个频带的标准偏差值; 以及生成指示针对每个频带的偏置校正的平均语音电平的语音电平数据，包括使用至少一个校正值来校正所述频带的估计平均语音电平，其中每个校正值已经使用参考语音模型预先确定。

6. 发明授权

US11264045B2 Adaptive audio filtering 有权
公开(公告)号：US11264045B2
公开(公告)日：2022-03-01
申请号：US16564532
申请日：2019-09-09
申请人： Dolby Laboratories Licensing Corporation
发明人： Dong Shi , Glenn N. Dickins , David Gunawan , Xuejing Sun
IPC分类号： G10L21/0232 , G10L21/0208 , H04M9/08 , G10L21/028 , G10L25/21
摘要： In an audio processing system (300), a filtering section (350, 400): receives subband signals (410, 420, 430) corresponding to audio content of a reference signal (301) in respective frequency subbands; receives subband signals (411, 421, 431) corresponding to audio content of a response signal (304) in the respective subbands; and forms filtered inband references (412, 422, 432) by applying respective filters (413, 423, 433) to the subband signals of the reference signal. For a frequency subband: filtered crossband references (424, 425) are formed by multiplying, by scalar factors (426, 427), filtered inband references of other subbands; a composite filtered reference (428) is formed by summing the filtered inband reference of the subband (422) and the filtered crossband references; a residual signal (429) is computed as a difference between the composite filtered reference and the subband signal of the response signal corresponding to the subband; and the scalar factors and the filter applied to the subband signal of the reference signal corresponding to the subband are adjusted based on the residual signal.

7. 发明申请

US20210037319A1 ESTIMATING USER LOCATION IN A SYSTEM INCLUDING SMART AUDIO DEVICES 有权
公开(公告)号：US20210037319A1
公开(公告)日：2021-02-04
申请号：US16929215
申请日：2020-07-15
申请人： Dolby Laboratories Licensing Corporation
发明人： Carlos Medaglia Dyonisio , David Gunawan
IPC分类号： H04R5/04 , H04R3/00 , H04R3/12 , H04S7/00 , G10L15/08 , G06N20/00
摘要： Methods and systems for performing at least one audio activity (e.g., conducting a phone call or playing music or other audio content) in an environment including by determining an estimated location of a user in the environment in response to sound uttered by the user (e.g., a voice command), and controlling the audio activity in response to determining the estimated user location. The environment may have zones which are indicated by a zone map and estimation of the user location may include estimating in which of the zones the user is located. The audio activity may be performed using microphones and loudspeakers which are implemented in or coupled to smart audio devices.

8. 发明授权

US10825464B2 Suppression of breath in audio signals 有权
公开(公告)号：US10825464B2
公开(公告)日：2020-11-03
申请号：US16063225
申请日：2016-12-15
申请人： Dolby Laboratories Licensing Corporation
发明人： Dong Shi , David Gunawan , Glenn N. Dickins
IPC分类号： G10L21/0264 , G10L21/0208 , G10L25/21 , G10L25/51 , H04M3/56 , G10L21/0324 , A61B7/00 , G10L21/0232
摘要： Example embodiments disclosed herein relate to audio signal processing. A method of processing an audio signal is disclosed. The method includes detecting, based on a power distribution of the audio signal, a type of content of a frame of the audio signal, generating a first gain based on a sound level of the frame for adjusting the sound level, processing the audio signal by applying the first gain to the frame; and in response to the type of content being detected to be a breath sound, generating a second gain for mitigating the breath sound and processing the audio signal by applying the second gain to the frame. Corresponding system and computer program product are also disclosed.

9. 发明授权

US10334362B2 Intrinsically safe audio system management for conference rooms 有权
公开(公告)号：US10334362B2
公开(公告)日：2019-06-25
申请号：US15803456
申请日：2017-11-03
申请人： Dolby Laboratories Licensing Corporation
发明人： Glenn N. Dickins , Dong Shi , Andrew Border , David Gunawan
IPC分类号： H04R3/02 , H04R29/00 , G10L21/0232 , H04R3/04 , H04M3/56 , H04N7/14 , G10L21/0208 , H04M9/08 , H04R27/00
摘要： 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.

10. 发明申请

US20180366136A1 Nuisance Notification 审中-公开
公开(公告)号：US20180366136A1
公开(公告)日：2018-12-20
申请号：US16061771
申请日：2016-12-14
申请人： Dolby Laboratories Licensing Corporation
发明人： Dong Shi , David Gunawan , Glenn N. Dickins
IPC分类号： G10L21/0232 , G10L25/18 , G10L25/72
摘要： Example embodiments disclosed herein relate to audio signal processing. A method of indicating a presence of a nuisance in an audio signal is disclosed. The method includes determining a probability of the presence of the nuisance in a frame of the audio signal based on a feature of the audio signal, the nuisance representing an unwanted sound made by a user, in response to the probability of the presence of the nuisance exceeding a threshold, tracking the audio signal based on a metric over a plurality of frames following the frame, determining, based on the tracking, that the presence of the nuisance is to be indicated to the user, and in response to the determination, presenting to the user a notification of the presence of the nuisance. Corresponding system and computer program product are also disclosed.

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