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1. 发明公开

EP2898508A1 METHODS AND SYSTEMS FOR SELECTING LAYERS OF ENCODED AUDIO SIGNALS FOR TELECONFERENCING 有权转让
标题翻译：方法和系统层层选拔编码的音频信号，用于电话会议
公开(公告)号：EP2898508A1
公开(公告)日：2015-07-29
申请号：EP13766821.6
申请日：2013-09-11
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： CARTWRIGHT, Richard James , DICKINS, Glenn
IPC分类号： G10L19/24 , G10L19/008 , H04M3/56 , G10L19/02 , G10L21/02 , H03G9/02
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： A method for encoding sound field signals includes allocating coding rate by application of a uniform criterion to all subbands of all signals in a joint process. An allocation criterion may be based on a comparison, in a given subband, between a spectral envelope of the signals to be encoded and a coding noise profile, wherein the noise profile may be a sum of a noise shape and a noise offset, which noise offset is computed on the basis of the coding bit budget. The rate allocation process may be combined with an energy-compacting orthogonal transform, for which there is proposed a parameterization susceptible of efficient coding and having adjustable directivity. In a further aspect, the invention provides a corresponding decoding method.

2. 发明授权

EP2898509B1 AUDIO CODING WITH GAIN PROFILE EXTRACTION AND TRANSMISSION FOR SPEECH ENHANCEMENT AT THE DECODER 有权转让
标题翻译：有加强轮廓提取和传输技术的语音改进的解码器的声音编码
公开(公告)号：EP2898509B1
公开(公告)日：2016-10-12
申请号：EP13763440.8
申请日：2013-09-11
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： DICKINS, Glenn , PURNHAGEN, Heiko , SAMUELSSON, Leif Jonas
IPC分类号： G10L21/0208 , G10L21/02 , H04M3/56 , H03G9/02 , G10L19/008 , 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： A method for encoding sound field signals includes allocating coding rate by application of a uniform criterion to all subbands of all signals in a joint process. An allocation criterion may be based on a comparison, in a given subband, between a spectral envelope of the signals to be encoded and a coding noise profile, wherein the noise profile may be a sum of a noise shape and a noise offset, which noise offset is computed on the basis of the coding bit budget. The rate allocation process may be combined with an energy-compacting orthogonal transform, for which there is proposed a parameterization susceptible of efficient coding and having adjustable directivity. In a further aspect, the invention provides a corresponding decoding method.

3. 发明授权

EP2898508B1 METHODS AND SYSTEMS FOR SELECTING LAYERS OF ENCODED AUDIO SIGNALS FOR TELECONFERENCING 有权转让
标题翻译：方法和系统选择层编码的音频信号，用于电话会议
公开(公告)号：EP2898508B1
公开(公告)日：2017-05-31
申请号：EP13766821.6
申请日：2013-09-11
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： CARTWRIGHT, Richard James , DICKINS, Glenn
IPC分类号： G10L19/24 , G10L19/008 , G10L21/02 , 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： A method for encoding sound field signals includes allocating coding rate by application of a uniform criterion to all subbands of all signals in a joint process. An allocation criterion may be based on a comparison, in a given subband, between a spectral envelope of the signals to be encoded and a coding noise profile, wherein the noise profile may be a sum of a noise shape and a noise offset, which noise offset is computed on the basis of the coding bit budget. The rate allocation process may be combined with an energy-compacting orthogonal transform, for which there is proposed a parameterization susceptible of efficient coding and having adjustable directivity. In a further aspect, the invention provides a corresponding decoding method.
摘要翻译：一种用于编码的声场信号方法包括：通过一个统一标准的应用到所有信号的所有子带中的联合过程中分配的编码率。的分配准则可以基于比较，在给定的子带，该信号的频谱包络要被编码和编码噪声分布之间，worin噪声分布可以是噪声形状的总和和一个噪声偏移，噪声偏移计算的编码比特预算的基础上。率分配过程可以与能量密实正交变换组合，为此，有人提出敏感有效的编码和具有可调节指向性的参数化。在进一步的方面，本发明提供相应的解码方法。

4. 发明公开

EP3092784A1 DETECTING CONFERENCE CALL PERFORMANCE ISSUE FROM ABERRANT BEHAVIOR 有权
标题翻译： ERKENNUNG VON KONFERENZRUFLEISTUNGSPROBLEMEN ANHAND ABELLANTEN VERHALTENS
公开(公告)号：EP3092784A1
公开(公告)日：2016-11-16
申请号：EP15700822.8
申请日：2015-01-06
申请人： Dolby Laboratories Licensing Corporation
发明人： LI, Kai , DICKINS, Glenn , SUN, Xuejing
IPC分类号： H04M3/22 , H04M3/56 , G10L25/60
摘要： In a conference call having a plurality of participants interacting in a conference exchange of information in a digital transmission environment, the interaction being across a variable network transmission resource, a method of allocating the level of transmission resource, the methods including the steps of: (a) monitoring predetermined aspects of the participant's behavior during the conference call; (b) determining a divergence of participants behavior from normative values; (c) utilizing any divergence as an indicator of aberrant operation of the participants; and (d) allocating the resource determinative on the divergence of participants behavior from normative values.
摘要翻译：在具有多个参与者在数字传输环境中的会议信息交换中进行交互的电话会议中，所述交互是跨可变网络传输资源，分配传输资源级别的方法，所述方法包括以下步骤：（ a）在电话会议期间监视参与者的行为的预定方面; （b）确定参与者行为与规范价值的差异; （c）利用任何分歧作为参与者异常运作的指标; 和（d）将参与者行为与规范价值观分歧的决定因素分配。

5. 发明公开

EP2898506A1 LAYERED APPROACH TO SPATIAL AUDIO CODING 有权转让
标题翻译： GESCHICHTERTER ANSATZFÜRRÄUMLICHEAUDIOCODIERUNG
公开(公告)号：EP2898506A1
公开(公告)日：2015-07-29
申请号：EP13763433.3
申请日：2013-09-10
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： DICKINS, Glenn , PURNHAGEN, Heiko , SAMUELSSON, Leif Jonas
IPC分类号： G10L19/008 , G10L21/02 , H03G9/02 , G10L19/02
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： A method for encoding sound field signals includes allocating coding rate by application of a uniform criterion to all subbands of all signals in a joint process. An allocation criterion may be based on a comparison, in a given subband, between a spectral envelope of the signals to be encoded and a coding noise profile, wherein the noise profile may be a sum of a noise shape and a noise offset, which noise offset is computed on the basis of the coding bit budget. The rate allocation process may be combined with an energy-compacting orthogonal transform, for which there is proposed a parameterization susceptible of efficient coding and having adjustable directivity. In a further aspect, the invention provides a corresponding decoding method.
摘要翻译：用于编码声场信号的方法包括：通过在联合处理中对所有信号的所有子带应用均匀标准来分配编码速率。分配标准可以基于在给定子带中在待编码的信号的频谱包络与编码噪声分布之间的比较，其中噪声分布可以是噪声形状和噪声偏移的和，哪个噪声基于编码比特预算来计算偏移量。速率分配过程可以与能量压缩正交变换组合，其中提出了易于有效编码并且具有可调方向性的参数化。另一方面，本发明提供了相应的解码方法。

6. 发明授权

EP3092784B1 DETECTING CONFERENCE CALL PERFORMANCE ISSUE FROM ABERRANT BEHAVIOR 有权
公开(公告)号：EP3092784B1
公开(公告)日：2020-05-27
申请号：EP15700822.8
申请日：2015-01-06
申请人： Dolby Laboratories Licensing Corporation
发明人： LI, Kai , DICKINS, Glenn , SUN, Xuejing
IPC分类号： H04M3/22 , H04M3/56 , G10L25/60

7. 发明授权

EP2898506B1 LAYERED APPROACH TO SPATIAL AUDIO CODING 有权转让
标题翻译：空间音频编码的分层方法
公开(公告)号：EP2898506B1
公开(公告)日：2018-01-17
申请号：EP13763433.3
申请日：2013-09-10
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： DICKINS, Glenn , PURNHAGEN, Heiko , SAMUELSSON, Leif Jonas
IPC分类号： G10L19/008 , G10L21/02 , G10L19/24 , 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： A method for encoding sound field signals includes allocating coding rate by application of a uniform criterion to all subbands of all signals in a joint process. An allocation criterion may be based on a comparison, in a given subband, between a spectral envelope of the signals to be encoded and a coding noise profile, wherein the noise profile may be a sum of a noise shape and a noise offset, which noise offset is computed on the basis of the coding bit budget. The rate allocation process may be combined with an energy-compacting orthogonal transform, for which there is proposed a parameterization susceptible of efficient coding and having adjustable directivity. In a further aspect, the invention provides a corresponding decoding method.

8. 发明公开

EP2901669A1 NEAR-END INDICATION THAT THE END OF SPEECH IS RECEIVED BY THE FAR END IN AN AUDIO OR VIDEO CONFERENCE 有权转让
标题翻译：都由远端讲起终止音频或视频会议近结束时显示
公开(公告)号：EP2901669A1
公开(公告)日：2015-08-05
申请号：EP13779658.7
申请日：2013-09-27
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： SHI, Dong , SUN, Xuejing , LI, Kai , HUANG, Shen , MUNDT, Harald , PURNHAGEN, Heiko , DICKINS, Glenn
IPC分类号： H04M3/56 , H04M9/08
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.

9. 发明公开

EP2828853A1 METHOD AND SYSTEM FOR BIAS CORRECTED SPEECH LEVEL DETERMINATION 有权转让
标题翻译： VERFAHREN UND系统ZUR BIAS-KORRIGIERTEN SPRACHPEGEL-BESTIMMUNG
公开(公告)号：EP2828853A1
公开(公告)日：2015-01-28
申请号：EP13714815.1
申请日：2013-03-21
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： GUNAWAN, David , DICKINS, Glenn
IPC分类号： G10L21/0316 , G10L25/48 , G10L25/78 , G10L25/21 , G10L25/18
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：用于通过以下方式测量由音频信号确定的语音水平的方法，所述方法通过增加噪声来修正和减少信号修改的影响和/或幅度压缩，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：产生指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; 以及生成指示每个频带的偏差校正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。

10. 发明授权

EP2828853B1 METHOD AND SYSTEM FOR BIAS CORRECTED SPEECH LEVEL DETERMINATION 有权转让
公开(公告)号：EP2828853B1
公开(公告)日：2018-09-12
申请号：EP13714815.1
申请日：2013-03-21
申请人： Dolby Laboratories Licensing Corporation
发明人： GUNAWAN, David , DICKINS, Glenn
IPC分类号： G10L21/0316 , G10L25/48 , G10L25/78 , G10L25/21 , G10L25/18
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.

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