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1. 发明申请

US20090319282A1 DIFFUSE SOUND SHAPING FOR BCC SCHEMES AND THE LIKE 有权
公开(公告)号：US20090319282A1
公开(公告)日：2009-12-24
申请号：US12550519
申请日：2009-08-31
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , H04S3/02
摘要： In one embodiment, C input audio channels are encoded to generate E transmitted audio channel(s), where one or more cue codes are generated for two or more of the C input channels, and the C input channels are downmixed to generate the E transmitted channel(s), where C>E≧1. One or more of the C input channels and the E transmitted channel(s) are analyzed to generate a flag indicating whether or not a decoder of the E transmitted channel(s) should perform envelope shaping during decoding of the E transmitted channel(s). In one implementation, envelope shaping adjusts a temporal envelope of a decoded channel generated by the decoder to substantially match a temporal envelope of a corresponding transmitted channel.
摘要翻译：在一个实施例中，对C个输入音频信道进行编码以产生E个发送的音频信道，其中为两个或更多个C个输入信道生成一个或多个提示码，并且将C个输入信道下混合以产生E个发送的通道，其中C> E> = 1。分析C个输入信道和E个发送信道中的一个或多个，以产生一个标志，该标志指示E个被发送的信道的解码器是否应在E个发送的信道的解码期间执行包络整形，。在一个实现中，包络整形调整由解码器产生的解码信道的时间包络，以使其对应的传输信道的时间包络基本匹配。

2. 发明授权

US08238562B2 Diffuse sound shaping for BCC schemes and the like 有权
标题翻译： BCC方案的漫射声音整形等
公开(公告)号：US08238562B2
公开(公告)日：2012-08-07
申请号：US12550519
申请日：2009-08-31
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04S3/02
摘要： In one embodiment, C input audio channels are encoded to generate E transmitted audio channel(s), where one or more cue codes are generated for two or more of the C input channels, and the C input channels are downmixed to generate the E transmitted channel(s), where C>E≧1. One or more of the C input channels and the E transmitted channel(s) are analyzed to generate a flag indicating whether or not a decoder of the E transmitted channel(s) should perform envelope shaping during decoding of the E transmitted channel(s). In one implementation, envelope shaping adjusts a temporal envelope of a decoded channel generated by the decoder to substantially match a temporal envelope of a corresponding transmitted channel.
摘要翻译：在一个实施例中，对C个输入音频信道进行编码以产生E个发送的音频信道，其中为两个或更多个C个输入信道生成一个或多个提示码，并且将C个输入信道下混合以产生E个发送的通道，其中C>E≥1。分析C个输入信道和E个发送信道中的一个或多个，以产生一个标志，该标志指示E个被发送的信道的解码器是否应在E个发送的信道的解码期间执行包络整形，。在一个实现中，包络整形调整由解码器产生的解码信道的时间包络，以使其对应的传输信道的时间包络基本匹配。

3. 发明授权

US08204261B2 Diffuse sound shaping for BCC schemes and the like 有权
标题翻译： BCC方案的漫射声音整形等
公开(公告)号：US08204261B2
公开(公告)日：2012-06-19
申请号：US11006492
申请日：2004-12-07
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： H04R5/02
CPC分类号： G10L19/008 , H04S3/02
摘要： An input audio signal having an input temporal envelope is converted into an output audio signal having an output temporal envelope. The input temporal envelope of the input audio signal is characterized. The input audio signal is processed to generate a processed audio signal, wherein the processing de-correlates the input audio signal. The processed audio signal is adjusted based on the characterized input temporal envelope to generate the output audio signal, wherein the output temporal envelope substantially matches the input temporal envelope.
摘要翻译：具有输入时间包络的输入音频信号被转换成具有输出时间包络的输出音频信号。表征输入音频信号的输入时间包络。输入音频信号被处理以产生经处理的音频信号，其中该处理使输入音频信号去相关。经处理的音频信号基于表征的输入时间包络被调整以产生输出音频信号，其中输出时间包络基本上与输入的时间包络相匹配。

4. 发明申请

US20060085200A1 Diffuse sound shaping for BCC schemes and the like 有权
标题翻译： BCC方案的漫射声音整形等
公开(公告)号：US20060085200A1
公开(公告)日：2006-04-20
申请号：US11006492
申请日：2004-12-07
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： G10L21/00
CPC分类号： G10L19/008 , H04S3/02
摘要： An input audio signal having an input temporal envelope is converted into an output audio signal having an output temporal envelope. The input temporal envelope of the input audio signal is characterized. The input audio signal is processed to generate a processed audio signal, wherein the processing de-correlates the input audio signal. The processed audio signal is adjusted based on the characterized input temporal envelope to generate the output audio signal, wherein the output temporal envelope substantially matches the input temporal envelope.
摘要翻译：具有输入时间包络的输入音频信号被转换成具有输出时间包络的输出音频信号。表征输入音频信号的输入时间包络。输入音频信号被处理以产生经处理的音频信号，其中该处理使输入音频信号去相关。经处理的音频信号基于表征的输入时间包络被调整以产生输出音频信号，其中输出时间包络基本上与输入的时间包络相匹配。

5. 发明申请

US20060083385A1 Individual channel shaping for BCC schemes and the like 有权
标题翻译： BCC方案的单个通道整形等
公开(公告)号：US20060083385A1
公开(公告)日：2006-04-20
申请号：US11006482
申请日：2004-12-07
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： H04R5/00
CPC分类号： G10L19/008
摘要： At an audio encoder, cue codes are generated for one or more audio channels, wherein an envelope cue code is generated by characterizing a temporal envelope in an audio channel. At an audio decoder, E transmitted audio channel(s) are decoded to generate C playback audio channels, where C>E≧1. Received cue codes include an envelope cue code corresponding to a characterized temporal envelope of an audio channel corresponding to the transmitted channel(s). One or more transmitted channel(s) are upmixed to generate one or more upmixed channels. One or more playback channels are synthesized by applying the cue codes to the one or more upmixed channels, wherein the envelope cue code is applied to an upmixed channel or a synthesized signal to adjust a temporal envelope of the synthesized signal based on the characterized temporal envelope such that the adjusted temporal envelope substantially matches the characterized temporal envelope.
摘要翻译：在音频编码器中，为一个或多个音频通道生成提示码，其中通过表征音频通道中的时间包络来产生包络线索码。在音频解码器处，E个发送的音频信道被解码以产生C个播放音频信道，其中C> E> = 1。接收的提示码包括与对应于所发送的频道的音频信道的特征化时间包络对应的信封提示码。一个或多个传输的信道被混合以产生一个或多个上混频道。通过将提示码应用于一个或多个上混合通道来合成一个或多个回放通道，其中，将包络提示码应用于上混合通道或合成信号，以基于表征的时间包络线来调整合成信号的时间包络使得调整的时间包络基本上与所表征的时间包络相匹配。

6. 发明授权

US07720230B2 Individual channel shaping for BCC schemes and the like 有权
标题翻译： BCC方案的单个通道整形等
公开(公告)号：US07720230B2
公开(公告)日：2010-05-18
申请号：US11006482
申请日：2004-12-07
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： H04R5/00
CPC分类号： G10L19/008
摘要： At an audio encoder, cue codes are generated for one or more audio channels, wherein an envelope cue code is generated by characterizing a temporal envelope in an audio channel. At an audio decoder, E transmitted audio channel(s) are decoded to generate C playback audio channels, where C>E≧1. Received cue codes include an envelope cue code corresponding to a characterized temporal envelope of an audio channel corresponding to the transmitted channel(s). One or more transmitted channel(s) are upmixed to generate one or more upmixed channels. One or more playback channels are synthesized by applying the cue codes to the one or more upmixed channels, wherein the envelope cue code is applied to an upmixed channel or a synthesized signal to adjust a temporal envelope of the synthesized signal based on the characterized temporal envelope such that the adjusted temporal envelope substantially matches the characterized temporal envelope.
摘要翻译：在音频编码器中，为一个或多个音频通道生成提示码，其中通过表征音频通道中的时间包络来产生包络线索码。在音频解码器处，对E个发送的音频信道进行解码以生成C个回放音频信道，其中C>E≥1。接收的提示码包括与对应于所发送的频道的音频信道的特征化时间包络对应的信封提示码。一个或多个传输的信道被混合以产生一个或多个上混频道。通过将提示码应用于一个或多个上混合通道来合成一个或多个回放通道，其中，将包络提示码应用于上混合通道或合成信号，以基于表征的时间包络线来调整合成信号的时间包络使得调整的时间包络基本上与所表征的时间包络相匹配。

7. 发明授权

US07391870B2 Apparatus and method for generating a multi-channel output signal 有权
标题翻译：用于产生多通道输出信号的装置和方法
公开(公告)号：US07391870B2
公开(公告)日：2008-06-24
申请号：US10935061
申请日：2004-09-07
申请人： Jürgen Herre , Christof Faller , Sascha Disch , Johannes Hilpert
发明人： Jürgen Herre , Christof Faller , Sascha Disch , Johannes Hilpert
IPC分类号： H04R5/00 , G06F17/00 , G10L19/00
CPC分类号： G10L19/008 , H04S3/00 , H04S2420/03
摘要： An apparatus for generating a multi-channel output signal performs a center channel cancellation to obtain improved base channels for reconstructing left-side output channels or right-side output channels. In particular, the apparatus includes a cancellation channel calculator for calculating a cancellation channel using information related to the original center channel available at the decoder. The device furthermore includes a combiner for combining a transmission channel with the cancellation channel. Finally, the apparatus includes a reconstructor for generating the multi-channel output signal. Due to the center channel cancellation, the channel reconstructor not only uses a different base channel for reconstructing the center channel but also uses base channels different from the transmission channels for reconstructing left and right output channels which have a reduced or even completely cancelled influence of the original center channel.
摘要翻译：用于产生多通道输出信号的装置执行中心信道消除以获得用于重建左侧输出信道或右侧输出信道的改进的基本信道。具体地，该装置包括消除信道计算器，用于使用与解码器可用的原始中心信道相关的信息来计算消除信道。该装置还包括用于将传输信道与消除信道组合的组合器。最后，该装置包括用于产生多声道输出信号的重建器。由于中心信道消除，信道重构器不仅使用不同的基本信道来重构中心信道，而且还使用与传输信道不同的基本信道来重构左右输出信道，这些信道具有减少甚至完全消除的影响原中心频道。

8. 发明申请

US20060009225A1 Apparatus and method for generating a multi-channel output signal 有权
标题翻译：用于产生多通道输出信号的装置和方法
公开(公告)号：US20060009225A1
公开(公告)日：2006-01-12
申请号：US10935061
申请日：2004-09-07
申请人： Jurgen Herre , Christof Faller , Sascha Disch , Johannes Hilpert
发明人： Jurgen Herre , Christof Faller , Sascha Disch , Johannes Hilpert
IPC分类号： H04Q7/20
CPC分类号： G10L19/008 , H04S3/00 , H04S2420/03
摘要： An apparatus for generating a multi-channel output signal performs a center channel cancellation to obtain improved base channels for reconstructing left-side output channels or right-side output channels. In particular, the apparatus includes a cancellation channel calculator for calculating a cancellation channel using information related to the original center channel available at the decoder. The device furthermore includes a combiner for combining a transmission channel with the cancellation channel. Finally, the apparatus includes a reconstructor for generating the multi-channel output signal. Due to the center channel cancellation, the channel reconstructor not only uses a different base channel for reconstructing the center channel but also uses base channels different from the transmission channels for reconstructing left and right output channels which have a reduced or even completely cancelled influence of the original center channel.
摘要翻译：用于产生多通道输出信号的装置执行中心信道消除以获得用于重建左侧输出信道或右侧输出信道的改进的基本信道。具体地，该装置包括消除信道计算器，用于使用与解码器可用的原始中心信道相关的信息来计算消除信道。该装置还包括用于将传输信道与消除信道组合的组合器。最后，该装置包括用于产生多声道输出信号的重建器。由于中心信道消除，信道重构器不仅使用不同的基本信道来重构中心信道，而且还使用与传输信道不同的基本信道来重构左右输出信道，这些信道具有减少甚至完全消除的影响原中心频道。

9. 发明申请

US20060153408A1 Compact side information for parametric coding of spatial audio 有权
标题翻译：用于空间音频参数编码的紧凑侧面信息
公开(公告)号：US20060153408A1
公开(公告)日：2006-07-13
申请号：US11032689
申请日：2005-01-10
申请人： Christof Faller , Juergen Herre
发明人： Christof Faller , Juergen Herre
IPC分类号： H04R5/02
CPC分类号： G10L19/008
摘要： At an audio encoder, cue codes are generated for one or more audio channels, wherein a combined cue code (e.g., a combined inter-channel correlation (ICC) code) is generated by combining two or more estimated cue codes, each estimated cue code estimated from a group of two or more channels. At an audio decoder, E transmitted audio channel(s) are decoded to generate C playback audio channels. Received cue codes include a combined cue code (e.g., a combined ICC code). One or more transmitted channel(s) are upmixed to generate one or more upmixed channels. One or more playback channels are synthesized by applying the cue codes to the one or more upmixed channels, wherein two or more derived cue codes are derived from the combined cue code, and each derived cue code is applied to generate two or more synthesized channels.
摘要翻译：在音频编码器处，为一个或多个音频通道生成提示码，其中通过组合两个或多个估计的提示码来生成组合的提示码（例如，组合的信道间相关（ICC）码），每个估计的提示码从一组两个或多个渠道估计。在音频解码器处，E个发送的音频信道被解码以产生C个播放音频信道。接收的提示码包括组合的提示码（例如，组合的ICC码）。一个或多个传输的信道被混合以产生一个或多个上混频道。通过将提示码应用于一个或多个上混合信道来合成一个或多个播放频道，其中从组合提示码导出两个或更多个派生提示码，并且应用每个派生的提示码以生成两个或多个合成频道。

10. 发明授权

US07805313B2 Frequency-based coding of channels in parametric multi-channel coding systems 有权
标题翻译：参数化多通道编码系统中频道的频率编码
公开(公告)号：US07805313B2
公开(公告)日：2010-09-28
申请号：US10827900
申请日：2004-04-20
申请人： Christof Faller , Juergen Herre
发明人： Christof Faller , Juergen Herre
IPC分类号： G10L19/00 , H04R5/00
CPC分类号： H04S3/00 , G10L19/008 , H04S2420/03
摘要： For a multi-channel audio signal, parametric coding is applied to different subsets of audio input channels for different frequency regions. For example, for a 5.1 surround sound signal having five regular channels and one low-frequency (LFE) channel, binaural cue coding (BCC) can be applied to all six audio channels for sub-bands at or below a specified cut-off frequency, but to only five audio channels (excluding the LFE channel) for sub-bands above the cut-off frequency. Such frequency-based coding of channels can reduce the encoding and decoding processing loads and/or size of the encoded audio bitstream relative to parametric coding techniques that are applied to all input channels over the entire frequency range.
摘要翻译：对于多声道音频信号，参数编码被应用于不同频率区域的音频输入通道的不同子集。例如，对于具有五个常规频道和一个低频（LFE）频道的5.1环绕声信号，可以将双耳提示编码（BCC）应用于所有六个音频通道，用于等于或小于指定截止频率的子频带，但对于截止频率以上的子频带，只有五个音频通道（不包括LFE通道）。通道的这种基于频率的编码可以相对于在整个频率范围上应用于所有输入通道的参数编码技术来减少编码和解码处理负载和/或编码音频比特流的大小。

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