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1. 发明申请

WO2017035281A2 AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS 审中-公开
标题翻译：使用演示变换参数进行音频编码和解码
公开(公告)号：WO2017035281A2
公开(公告)日：2017-03-02
申请号：PCT/US2016/048497
申请日：2016-08-24
申请人： DOLBY INTERNATIONAL AB , DOLBY LABORATORIES LICENSING CORPORATION
发明人： BREEBAART, Dirk J. , COOPER, David M. , SAMUELSSON, Leif J. , KOPPENS, Jeroen , WILSON, Rhonda J. , PURNHAGEN, Heiko , GROESCHEL, Alexander
IPC分类号： H04S1/00
CPC分类号： H04S3/008 , G10L19/008 , H04S1/002 , H04S1/007 , H04S3/004 , H04S7/306 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01 , H04S2420/03
摘要： A method for encoding an input audio stream including the steps of obtaining a first playback stream presentation of the input audio stream intended for reproduction on a first audio reproduction system, obtaining a second playback stream presentation of the input audio stream intended for reproduction on a second audio reproduction system, determining a set of transform parameters suitable for transforming an intermediate playback stream presentation to an approximation of the second playback stream presentation, wherein the transform parameters are determined by minimization of a measure of a difference between the approximation of the second playback stream presentation and the second playback stream presentation, and encoding the first playback stream presentation and the set of transform parameters for transmission to a decoder.
摘要翻译：一种用于对输入音频流进行编码的方法，包括以下步骤：在第一音频再现系统上获得用于再现的输入音频流的第一重放流呈现步骤，在第二音频再现系统中获得用于再现的输入音频流的第二播放流呈现音频再现系统，确定适合于将中间回放流呈现变换为第二重放流呈现的近似的一组变换参数，其中通过最小化第二重放流的近似之间的差的度量来确定变换参数呈现和第二播放流呈现，以及对第一重放流呈现和变换参数集合进行编码以便传输到解码器。

2. 发明公开

EP4224887A1 AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS 审中-实审
公开(公告)号：EP4224887A1
公开(公告)日：2023-08-09
申请号：EP23162644.1
申请日：2016-08-24
申请人： Dolby International AB , Dolby Laboratories Licensing Corporation
发明人： BREEBAART, Dirk Jeroen , COOPER, David M. , SAMUELSSON, Leif J. , KOPPENS, Jeroen , WILSON, Rhonda Joy , PURNHAGEN, Heiko , STAHLMANN, Alexander
IPC分类号： H04S1/00 , H04S3/00 , H04S7/00
摘要： A method for encoding an input audio stream including the steps of obtaining a first playback stream presentation of the input audio stream intended for reproduction on a first audio reproduction system, obtaining a second playback stream presentation of the input audio stream intended for reproduction on a second audio reproduction system, determining a set of transform parameters suitable for transforming an intermediate playback stream presentation to an approximation of the second playback stream presentation, wherein the transform parameters are determined by minimization of a measure of a difference between the approximation of the second playback stream presentation and the second playback stream presentation, and encoding the first playback stream presentation and the set of transform parameters for transmission to a decoder.

3. 发明公开

EP3342186A2 AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS 有权转让
公开(公告)号：EP3342186A2
公开(公告)日：2018-07-04
申请号：EP16770381.8
申请日：2016-08-24
申请人： Dolby International AB , Dolby Laboratories Licensing Corporation
发明人： BREEBAART, Dirk Jeroen , COOPER, David M. , SAMUELSSON, Leif J. , KOPPENS, Jeroen , WILSON, Rhonda Joy , PURNHAGEN, Heiko , STAHLMANN, Alexander
IPC分类号： H04S1/00 , H04S3/00 , H04S7/00
CPC分类号： H04S3/008 , G10L19/008 , H04S1/002 , H04S1/007 , H04S3/004 , H04S7/306 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01 , H04S2420/03
摘要： A method for encoding an input audio stream including the steps of obtaining a first playback stream presentation of the input audio stream intended for reproduction on a first audio reproduction system, obtaining a second playback stream presentation of the input audio stream intended for reproduction on a second audio reproduction system, determining a set of transform parameters suitable for transforming an intermediate playback stream presentation to an approximation of the second playback stream presentation, wherein the transform parameters are determined by minimization of a measure of a difference between the approximation of the second playback stream presentation and the second playback stream presentation, and encoding the first playback stream presentation and the set of transform parameters for transmission to a decoder.

4. 发明申请

WO2015102920A1 GENERATING BINAURAL AUDIO IN RESPONSE TO MULTI-CHANNEL AUDIO USING AT LEAST ONE FEEDBACK DELAY NETWORK 审中-公开
标题翻译：使用至少一个反馈延迟网络生成多声道音频响应的音频
公开(公告)号：WO2015102920A1
公开(公告)日：2015-07-09
申请号：PCT/US2014/071100
申请日：2014-12-18
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： YEN, Kuan-Chieh , BREEBAART, Dirk J. , DAVIDSON, Grant A. , WILSON, Rhonda , COOPER, David M. , SHUANG, Zhiwei
IPC分类号： H04S3/00
CPC分类号： H04S3/004 , H04S2420/01
摘要： In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.
摘要翻译：在一些实施例中，用于响应于多通道音频信号的信道产生双耳信号的虚拟化方法，该多声道音频信号通过使用至少一个反馈延迟网络（FDN）来应用每个信道的双耳房间脉冲响应（BRIR）来应用一个通常的晚期混响到频道的混合。在一些实施例中，输入信号信道在第一处理路径中被处理以向每个信道应用用于信道的单信道BRIR的直接响应和早期反射部分，并且在第二处理路径中处理信道的混合，包括至少一个FDN应用公共的后期混响。通常，常见的后期混响模拟了至少一些单通道BRIR的后期混响部分的集体宏属性。其他方面是被配置为执行该方法的任何实施例的耳机虚拟器。

5. 发明授权

EP3090573B1 GENERATING BINAURAL AUDIO IN RESPONSE TO MULTI-CHANNEL AUDIO USING AT LEAST ONE FEEDBACK DELAY NETWORK 有权转让
公开(公告)号：EP3090573B1
公开(公告)日：2018-12-05
申请号：EP14824318.1
申请日：2014-12-18
申请人： Dolby Laboratories Licensing Corporation
发明人： YEN, Kuan-Chieh , BREEBAART, Dirk J. , DAVIDSON, Grant A. , WILSON, Rhonda , COOPER, David M. , SHUANG, Zhiwei
IPC分类号： H04S3/00
CPC分类号： H04S7/306 , G10L19/008 , H04S3/004 , H04S7/307 , H04S2400/03 , H04S2400/13 , H04S2420/01
摘要： In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.

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