专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10142484B2 Nearby talker obscuring, duplicate dialogue amelioration and automatic muting of acoustically proximate participants 有权
公开(公告)号：US10142484B2
公开(公告)日：2018-11-27
申请号：US15549581
申请日：2016-02-08
申请人： Dolby Laboratories Licensing Corporation
发明人： Gary Spittle , Glenn Dickins , David Gunawan , Guilin Ma
IPC分类号： H04M3/56 , H04M3/00 , H04M3/34 , H04M9/08 , H04R27/00 , H04S7/00 , H04R1/10
摘要： In an audio conferencing environment, including multiple users participating by means of a series of associated audio input devices for the provision of audio input, and a series of audio output devices for the output of audio output streams to the multiple users, with the audio input and output devices being interconnected to a mixing control server for the control and mixing of the audio inputs from each audio input devices to present a series of audio streams to the audio output devices, a method of reducing the effects of cross talk pickup of at least a first audio conversation by multiple audio input devices, the method including the steps of: (a) monitoring the series of audio input devices for the presence of a duplicate audio conversation input from at least two input audio sources in an audio output stream; and (b) where a duplicate audio conversation input is detected, suppressing the presence of the duplicate audio conversation input in the audio output stream.

2. 发明授权

US09460729B2 Layered approach to spatial audio coding 有权
标题翻译：分层方法进行空间音频编码
公开(公告)号：US09460729B2
公开(公告)日：2016-10-04
申请号：US14427589
申请日：2013-09-10
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Glenn Dickins , Heiko Purnhagen , Leif Jonas Samuelsson
IPC分类号： G10L19/02 , G10L19/012 , H04M3/56 , G10L21/0208 , G10L19/008 , G10L21/0216
CPC分类号： G10L19/012 , G10L19/008 , G10L19/02 , G10L19/0208 , G10L19/032 , G10L19/22 , G10L19/24 , G10L21/02 , G10L21/0208 , G10L21/0216 , H04M3/56
摘要： The invention provides a layered audio coding format with a monophonic layer and at least one sound field layer. A plurality of audio signals is decomposed, in accordance with decomposition parameters controlling the quantitative properties of an orthogonal energy-compacting transform, into rotated audio signals. Further, a time-variable gain profile specifying constructively how the rotated audio signals may be processed to attenuate undesired audio content is derived. The monophonic layer may comprise one of the rotated signals and the gain profile. The sound field layer may comprise the rotated signals and the decomposition parameters. In one embodiment, the gain profile comprises a cleaning gain profile with the main purpose of eliminating non-speech components and/or noise. The gain profile may also comprise mutually independent broadband gains. Because signals in the audio coding format can be mixed with a limited computational effort, the invention may advantageously be applied in a tele-conferencing application.
摘要翻译：本发明提供了具有单声道层和至少一个声场层的分层音频编码格式。根据控制正交能量压缩变换的定量特性的分解参数将多个音频信号分解成旋转音频信号。此外，推导出时间变量增益曲线，其具体地指定旋转的音频信号如何被处理以衰减不需要的音频内容。单声道层可以包括旋转的信号之一和增益分布。声场层可以包括旋转的信号和分解参数。在一个实施例中，增益分布包括清除增益曲线，其主要目的是消除非语音分量和/或噪声。增益曲线也可以包括相互独立的宽带增益。因为音频编码格式的信号可以以有限的计算量来混合，所以本发明可以有利地应用于远程会议应用中。

3. 发明申请

US20150071446A1 Audio Processing Method and Audio Processing Apparatus 有权
标题翻译：音频处理方法和音频处理装置
公开(公告)号：US20150071446A1
公开(公告)日：2015-03-12
申请号：US14365072
申请日：2012-12-12
申请人： Dolby Laboratories Licensing Corporation
发明人： Xuejing Sun , Glenn Dickins , Huiqun Deng , Zhiwei Shuang , Bin Cheng
IPC分类号： H04S5/00 , G10L19/26 , H04S7/00
CPC分类号： H04S5/00 , G10L19/26 , G10L21/0364 , H04S7/302
摘要： An audio processing method and an audio processing apparatus are described. A mono-channel audio signal is transformed into a plurality of first subband signals. Proportions of a desired component and a noise component are estimated in each of the subband signals. Second subband signals corresponding respectively to a plurality of channels are generated from each of the first subband signals. Each of the second subband signals comprises a first component and a second component obtained by assigning a spatial hearing property and a perceptual hearing property different from the spatial hearing property to the desired component and the noise component in the corresponding first subband signal respectively, based on a multi-dimensional auditory presentation method. The second subband signals are transformed into signals for rendering with the multi-dimensional auditory presentation method. By assigning different hearing properties to desired sound and noise, the intelligibility of the audio signal can be improved.
摘要翻译：描述了音频处理方法和音频处理装置。单声道音频信号被变换成多个第一子带信号。在每个子带信号中估计所需分量和噪声分量的比例。从第一子带信号中的每一个产生分别对应于多个信道的第二子带信号。每个第二子带信号包括第一分量和第二分量，该第一分量和第二分量通过分别将空间听觉特性和不同于空间听觉特性的感知听觉特性分配给相应的第一子带信号中的期望分量和噪声分量，基于多维听觉呈现方法。第二子带信号被转换成用于用多维听觉呈现方法渲染的信号。通过将不同的听觉属性分配给期望的声音和噪声，可以提高音频信号的可懂度。

4. 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。

5. 发明申请

US20150248889A1 LAYERED APPROACH TO SPATIAL AUDIO CODING 有权
标题翻译：空间音频编码的层次化方法
公开(公告)号：US20150248889A1
公开(公告)日：2015-09-03
申请号：US14427589
申请日：2013-09-10
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Glenn Dickins , Heiko Purnhagen , Leif Jonas Samuelsson
IPC分类号： G10L19/008
CPC分类号： G10L19/012 , G10L19/008 , G10L19/02 , G10L19/0208 , G10L19/032 , G10L19/22 , G10L19/24 , G10L21/02 , G10L21/0208 , G10L21/0216 , H04M3/56
摘要： The invention provides a layered audio coding format with a monophonic layer and at least one sound field layer. A plurality of audio signals is decomposed, in accordance with decomposition parameters controlling the quantitative properties of an orthogonal energy-compacting transform, into rotated audio signals. Further, a time-variable gain profile specifying constructively how the rotated audio signals may be processed to attenuate undesired audio content is derived. The monophonic layer may comprise one of the rotated signals and the gain profile. The sound field layer may comprise the rotated signals and the decomposition parameters. In one embodiment, the gain profile comprises a cleaning gain profile with the main purpose of eliminating non-speech components and/or noise. The gain profile may also comprise mutually independent broadband gains. Because signals in the audio coding format can be mixed with a limited computational effort, the invention may advantageously be applied in a tele-conferencing application.
摘要翻译：本发明提供了具有单声道层和至少一个声场层的分层音频编码格式。根据控制正交能量压缩变换的定量特性的分解参数将多个音频信号分解成旋转音频信号。此外，推导出时间变量增益曲线，其具体地指定旋转的音频信号如何被处理以衰减不需要的音频内容。单声道层可以包括旋转的信号之一和增益分布。声场层可以包括旋转的信号和分解参数。在一个实施例中，增益分布包括清除增益曲线，其主要目的是消除非语音分量和/或噪声。增益曲线也可以包括相互独立的宽带增益。因为音频编码格式的信号可以以有限的计算量来混合，所以本发明可以有利地应用于远程会议应用中。

6. 发明申请

US20150221319A1 METHODS AND SYSTEMS FOR SELECTING LAYERS OF ENCODED AUDIO SIGNALS FOR TELECONFERENCING 有权
标题翻译：用于选择编码音频信号层的方法和系统
公开(公告)号：US20150221319A1
公开(公告)日：2015-08-06
申请号：US14421419
申请日：2013-09-11
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Richard James Cartwright , Glenn Dickins
IPC分类号： G10L19/02 , G10L19/008 , H04M3/56
CPC分类号： G10L19/012 , G10L19/008 , G10L19/02 , G10L19/0208 , G10L19/032 , G10L19/22 , G10L19/24 , G10L21/02 , G10L21/0208 , G10L21/0216 , H04M3/56
摘要： In some embodiments, a method for selecting at least one layer of a spatially layered, encoded audio signal. Typical embodiments are teleconferencing methods in which at least one of a set of nodes (endpoints, each of which is a telephone system, and optionally also a server) is configured to perform audio coding in response to soundfield audio data to generate spatially layered encoded audio including any of a number of different subsets of a set of layers, the set of layers including at least one monophonic layer, at least one soundfield layer, and optionally also at least one metadata layer comprising metadata indicative of at least one processing operation to be performed on the encoded audio. Other aspects are systems configured (e.g., programmed) to perform any embodiment of the method, and computer readable media which store code for implementing any embodiment of the method or steps thereof.
摘要翻译：在一些实施例中，一种用于选择至少一层空间分层编码音频信号的方法。典型的实施例是电话会议方法，其中一组节点（端点，其中每一个都是电话系统，并且可选地还包括服务器）中的至少一个被配置为响应于声场音频数据执行音频编码，以生成空间分层的编码音频包括一组层的多个不同子集中的任何一个，所述层的集合包括至少一个单声道层，至少一个声场层，以及可选地还包括至少一个元数据层，所述元数据层包括指示至少一个处理操作的元数据对编码音频执行。其他方面是配置（例如，编程）以执行方法的任何实施例的系统，以及存储用于实现该方法或其步骤的任何实施例的代码的计算机可读介质。

7. 发明授权

US09858936B2 Methods and systems for selecting layers of encoded audio signals for teleconferencing 有权
公开(公告)号：US09858936B2
公开(公告)日：2018-01-02
申请号：US14421419
申请日：2013-09-11
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Richard James Cartwright , Glenn Dickins
IPC分类号： G10L19/012 , G10L19/008 , G10L19/02 , H04M3/56 , G10L21/0208 , G10L19/032 , G10L19/24 , G10L19/22 , G10L21/02 , G10L21/0216
CPC分类号： G10L19/012 , G10L19/008 , G10L19/02 , G10L19/0208 , G10L19/032 , G10L19/22 , G10L19/24 , G10L21/02 , G10L21/0208 , G10L21/0216 , H04M3/56
摘要： In some embodiments, a method for selecting at least one layer of a spatially layered, encoded audio signal. Typical embodiments are teleconferencing methods in which at least one of a set of nodes (endpoints, each of which is a telephone system, and optionally also a server) is configured to perform audio coding in response to soundfield audio data to generate spatially layered encoded audio including any of a number of different subsets of a set of layers, the set of layers including at least one monophonic layer, at least one soundfield layer, and optionally also at least one metadata layer comprising metadata indicative of at least one processing operation to be performed on the encoded audio. Other aspects are systems configured (e.g., programmed) to perform any embodiment of the method, and computer readable media which store code for implementing any embodiment of the method or steps thereof.

8. 发明授权

US09525845B2 Near-end indication that the end of speech is received by the far end in an audio or video conference 有权
标题翻译：在音频或视频会议中远端接收到语音结束的近端指示
公开(公告)号：US09525845B2
公开(公告)日：2016-12-20
申请号：US14426134
申请日：2013-09-27
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Dong Shi , Xuejing Sun , Kai Li , Shen Huang , Harald Mundt , Heiko Purnhagen , Glenn Dickins
IPC分类号： H04N7/14 , H04N7/15
CPC分类号： H04N7/147 , H04M3/569 , H04M9/082 , H04M2201/12 , H04M2201/14 , H04M2201/38 , H04M2203/258 , H04M2203/352 , H04N7/15
摘要： Embodiments of client device and method for audio or video conferencing are described. An embodiment includes an offset detecting unit, a configuring unit, an estimator and an output unit. The offset detecting unit detects an offset of speech input to the client device. The configuring unit determines a voice latency from the client device to every far end. The estimator estimates a time when a user at the far end perceives the offset based on the voice latency. The output unit outputs a perceivable signal indicating that a user at the far end perceives the offset based on the time estimated for the far end. The perceivable signal is helpful to avoid collision between parties.
摘要翻译：描述用于音频或视频会议的客户端设备和方法的实施例。实施例包括偏移检测单元，配置单元，估计器和输出单元。偏移检测单元检测输入到客户端设备的语音偏移。配置单元确定从客户端设备到每个远端的语音延迟。估计器估计在远端的用户基于语音延迟感知到偏移的时间。输出单元输出可感知的信号，指示远端的用户基于为远端估计的时间感知偏移。可感知的信号有助于避免各方之间的冲突。

9. 发明授权

US09495970B2 Audio coding with gain profile extraction and transmission for speech enhancement at the decoder 有权
标题翻译：具有增益分布提取和传输的音频编码，用于解码器处的语音增强
公开(公告)号：US09495970B2
公开(公告)日：2016-11-15
申请号：US14427908
申请日：2013-09-11
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Glenn Dickins , Heiko Purnhagen , Leif Jonas Samuelsson
IPC分类号： G10L19/012 , G10L19/008 , H04M3/56 , G10L21/0208 , G10L19/032 , G10L19/02 , G10L21/0216
CPC分类号： G10L19/012 , G10L19/008 , G10L19/02 , G10L19/0208 , G10L19/032 , G10L19/22 , G10L19/24 , G10L21/02 , G10L21/0208 , G10L21/0216 , H04M3/56
摘要： The invention provides a layered audio coding format with a monophonic layer and at least one sound field layer. A plurality of audio signals is decomposed, in accordance with decomposition parameters controlling the quantitative properties of an orthogonal energy-compacting transform, into rotated audio signals. Further, a time-variable gain profile specifying constructively how the rotated audio signals may be processed to attenuate undesired audio content is derived. The monophonic layer may comprise one of the rotated signals and the gain profile. The sound field layer may comprise the rotated signals and the decomposition parameters. In one embodiment, the gain profile comprises a cleaning gain profile with the main purpose of eliminating non-speech components and/or noise. The gain profile may also comprise mutually independent broadband gains. Because signals in the audio coding format can be mixed with a limited computational effort, the invention may advantageously be applied in a tele-conferencing application.
摘要翻译：本发明提供了具有单声道层和至少一个声场层的分层音频编码格式。根据控制正交能量压缩变换的定量特性的分解参数将多个音频信号分解成旋转音频信号。此外，推导出时间变量增益曲线，其具体地指定旋转的音频信号如何被处理以衰减不需要的音频内容。单声道层可以包括旋转的信号之一和增益分布。声场层可以包括旋转的信号和分解参数。在一个实施例中，增益分布包括清除增益曲线，其主要目的是消除非语音分量和/或噪声。增益曲线也可以包括相互独立的宽带增益。因为音频编码格式的信号可以以有限的计算量来混合，所以本发明可以有利地应用于远程会议应用中。

10. 发明授权

US09282419B2 Audio processing method and audio processing apparatus 有权
标题翻译：音频处理方法和音频处理装置
公开(公告)号：US09282419B2
公开(公告)日：2016-03-08
申请号：US14365072
申请日：2012-12-12
申请人： Dolby Laboratories Licensing Corporation
发明人： Xuejing Sun , Glenn Dickins , Huiqun Deng , Zhiwei Shuang , Bin Cheng
IPC分类号： H04S5/00 , G10L21/0364 , G10L19/26 , H04S7/00
CPC分类号： H04S5/00 , G10L19/26 , G10L21/0364 , H04S7/302
摘要： An audio processing method and an audio processing apparatus are described. A mono-channel audio signal is transformed into a plurality of first subband signals. Proportions of a desired component and a noise component are estimated in each of the subband signals. Second subband signals corresponding respectively to a plurality of channels are generated from each of the first subband signals. Each of the second subband signals comprises a first component and a second component obtained by assigning a spatial hearing property and a perceptual hearing property different from the spatial hearing property to the desired component and the noise component in the corresponding first subband signal respectively, based on a multi-dimensional auditory presentation method. The second subband signals are transformed into signals for rendering with the multi-dimensional auditory presentation method. By assigning different hearing properties to desired sound and noise, the intelligibility of the audio signal can be improved.
摘要翻译：描述了音频处理方法和音频处理装置。单声道音频信号被变换成多个第一子带信号。在每个子带信号中估计所需分量和噪声分量的比例。从第一子带信号中的每一个产生分别对应于多个信道的第二子带信号。每个第二子带信号包括第一分量和第二分量，该第一分量和第二分量通过分别将空间听觉特性和不同于空间听觉特性的感知听觉特性分配给相应的第一子带信号中的期望分量和噪声分量，基于多维听觉呈现方法。第二子带信号被转换成用于用多维听觉呈现方法渲染的信号。通过将不同的听觉属性分配给期望的声音和噪声，可以提高音频信号的可懂度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式