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公开(公告)号：US20090003612A1
公开(公告)日：2009-01-01
申请号：US12206778
申请日：2008-09-09
IPC分类号： H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , G10L19/032 , H04S3/008 , H04S2400/03 , H04S2420/03
摘要： In processing a multi-channel audio signal having at least three original channels, a first downmix channel and a second downmix channel are provided, which are derived from the original channels. For a selected original channel of the original channels, channel side information are calculated such that a downmix channel or a combined downmix channel including the first and the second downmix channels, when weighted using the channel side information, results in an approximation of the selected original channel. The channel side information and the first and second downmix channels form output data to be transmitted to a decoder, which, in case of a low level decoder only decodes the first and second downmix channels or, in case of a high level decoder provides a full multi-channel audio signal based on the downmix channels and the channel side information. Since the channel side information only occupy a low number of bits, and since the decoder does not use dematrixing, an efficient and high quality multi-channel extension for stereo players and enhanced multi-channel players is obtained.
摘要翻译： 在处理具有至少三个原始信道的多声道音频信号时，提供从原始信道导出的第一下混通道和第二下混通道。 对于原始频道的所选择的原始频道，计算频道侧信息，使得当使用频道侧信息加权时，包括第一和第二下混频道的下混频道或组合缩混频道导致所选原稿的近似 渠道。 信道侧信息以及第一和第二下混频道形成要发送到解码器的输出数据，其在低电平解码器的情况下仅解码第一和第二下混通道，或者在高电平解码器提供满 基于下混频道的多声道音频信号和频道侧信息。 由于信道侧信息仅占用少量的比特，并且由于解码器不使用解矩阵，因此可以获得用于立体声播放器和增强型多声道播放器的有效且高质量的多声道扩展。
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公开(公告)号：US08270618B2
公开(公告)日：2012-09-18
申请号：US12206778
申请日：2008-09-09
CPC分类号： H04S3/02 , G10L19/008 , G10L19/032 , H04S3/008 , H04S2400/03 , H04S2420/03
摘要： In processing a multi-channel audio signal having at least three original channels, a first downmix channel and a second downmix channel are provided, which are derived from the original channels. For a selected original channel of the original channels, channel side information are calculated such that a downmix channel or a combined downmix channel including the first and the second downmix channels, when weighted using the channel side information, results in an approximation of the selected original channel. The channel side information and the first and second downmix channels form output data to be transmitted to a decoder, which, in case of a low level decoder only decodes the first and second downmix channels or, in case of a high level decoder provides a full multi-channel audio signal based on the downmix channels and the channel side information. Since the channel side information only occupy a low number of bits, and since the decoder does not use dematrixing, an efficient and high quality multi-channel extension for stereo players and enhanced multi-channel players is obtained.
摘要翻译： 在处理具有至少三个原始信道的多声道音频信号时，提供从原始信道导出的第一下混通道和第二下混通道。 对于原始频道的所选择的原始频道，计算频道侧信息，使得当使用频道侧信息加权时，包括第一和第二下混频道的下混频道或组合缩混频道导致所选原稿的近似 渠道。 信道侧信息以及第一和第二下混通道形成要发送到解码器的输出数据，其在低电平解码器的情况下仅解码第一和第二下混通道，或者在高电平解码器提供满 基于下混频道的多声道音频信号和频道侧信息。 由于信道侧信息仅占用少量的比特，并且由于解码器不使用解矩阵，因此可以获得用于立体声播放器和增强型多声道播放器的有效且高质量的多声道扩展。
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3.发明申请公开(公告)号：US20110200198A1
公开(公告)日：2011-08-18
申请号：US13004453
申请日：2011-01-11
申请人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
摘要翻译： 音频编码器具有通用的预处理级，诸如频域编码分支的基于信息宿的编码分支，诸如LPC域编码分支的基于信息源的编码分支以及用于在这些分支的输入处切换这些分支之间的切换，或 这些分支的输出由决策阶段控制。 音频解码器具有频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级 信号。
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4.发明申请DEVICE AND METHOD FOR GENERATING A MULTI-CHANNEL SIGNAL OR A PARAMETER DATA SET 有权用于产生多信道信号或参数数据集的装置和方法公开(公告)号：US20070206690A1
公开(公告)日：2007-09-06
申请号：US11683741
申请日：2007-03-08
CPC分类号： G10L19/008
摘要： For flexibly signaling a synchronous mode or an asynchronous mode in the multi-channel parameter reconstruction, a parameter configuration cue is inserted in the data stream, which is used by a configurator on the side of a multi-channel decoder to configure a multi-channel reconstructor. If the parameter configuration cue has a first meaning, the configurator will look for further configuration information in its input data, while, when the parameter configuration cue has another meaning, the configurator performs a configuration setting of the multi-channel reconstructor based on information on a coding algorithm with which transmission channel data have been coded, so that it is ensured efficiently on the one hand and flexibly on the other hand that there will always be obtained a correct association between parameter data and decoded transmission channel data.
摘要翻译： 为了在多信道参数重建中灵活地发信号通知同步模式或异步模式，参数配置提示被插入数据流中，由多通道解码器侧的配置器使用该配置提示来配置多通道 重建。 如果参数配置提示具有第一个含义，则配置器将在其输入数据中查找更多配置信息，而当参数配置提示具有其他含义时，配置器将根据有关信息的信息执行多通道重建器的配置设置 已经编码了传输信道数据的编码算法，从而一方面有效地确保并且灵活地确保总是获得参数数据和解码的传输信道数据之间的正确关联。
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5.发明授权公开(公告)号：US08804970B2
公开(公告)日：2014-08-12
申请号：US13004453
申请日：2011-01-11
申请人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L21/00
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
摘要翻译： 音频编码器具有通用的预处理级，诸如频域编码分支的基于信息宿的编码分支，诸如LPC域编码分支的基于信息源的编码分支以及用于在这些分支的输入处切换这些分支之间的切换，或 这些分支的输出由决策阶段控制。 音频解码器具有频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级 信号。
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6.发明授权Device and method for generating a multi-channel signal or a parameter data set 有权用于产生多声道信号或参数数据组的装置和方法公开(公告)号：US08731204B2
公开(公告)日：2014-05-20
申请号：US11683741
申请日：2007-03-08
IPC分类号： H04R5/00
CPC分类号： G10L19/008
摘要： For flexibly signaling a synchronous mode or an asynchronous mode in the multi-channel parameter reconstruction, a parameter configuration cue is inserted in the data stream, which is used by a configurator on the side of a multi-channel decoder to configure a multi-channel reconstructor. If the parameter configuration cue has a first meaning, the configurator will look for further configuration information in its input data, while, when the parameter configuration cue has another meaning, the configurator performs a configuration setting of the multi-channel reconstructor based on information on a coding algorithm with which transmission channel data have been coded, so that it is ensured efficiently on the one hand and flexibly on the other hand that there will always be obtained a correct association between parameter data and decoded transmission channel data.
摘要翻译： 为了在多信道参数重建中灵活地发信号通知同步模式或异步模式，参数配置提示被插入数据流中，由多通道解码器侧的配置器使用该配置提示来配置多通道 重建。 如果参数配置提示具有第一个含义，则配置器将在其输入数据中查找更多配置信息，而当参数配置提示具有其他含义时，配置器将根据有关信息的信息执行多通道重建器的配置设置 已经编码了传输信道数据的编码算法，从而一方面有效地确保并且灵活地确保总是获得参数数据和解码的传输信道数据之间的正确关联。
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公开(公告)号：US09326085B2
公开(公告)日：2016-04-26
申请号：US13442649
申请日：2012-04-09
IPC分类号： H04S5/00 , G10L19/008 , H04R5/04
CPC分类号： H04S5/005 , G10L19/008 , H04R5/04
摘要： A transient detector is provided for generating an ambience signal suitable for being emitted via loudspeakers for which there is no special loudspeaker signal to detect a transient period. A synthesis signal generator produces a synthesis signal which fulfills the transient condition on the one hand and the continuity condition for the synthesis signal on the other hand. A signal substituter will then substitute a portion of the examination signal by the synthesis signal to obtain an ambience signal for the surround channels.
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8.发明申请APPARATUS AND METHOD FOR EXTRACTING AN AMBIENT SIGNAL IN AN APPARATUS AND METHOD FOR OBTAINING WEIGHTING COEFFICIENTS FOR EXTRACTING AN AMBIENT SIGNAL AND COMPUTER PROGRAM 有权用于提取装置的环境信号的装置和方法以及用于获取提取环境信号和计算机程序的加权系数的方法公开(公告)号：US20090080666A1
公开(公告)日：2009-03-26
申请号：US12055787
申请日：2008-03-26
申请人： Christian Uhle , Juergen Herre , Stefan Geyersberger , Falko Ridderbusch , Andreas Walter , Oliver Moser
发明人： Christian Uhle , Juergen Herre , Stefan Geyersberger , Falko Ridderbusch , Andreas Walter , Oliver Moser
IPC分类号： H04R5/04
CPC分类号： H04R5/04
摘要： An apparatus for extracting an ambient signal from an input audio signal comprises a gain-value determinator configured to determine a sequence of time-varying ambient signal gain values for a given frequency band of the time-frequency distribution of the input audio signal in dependence on the input audio signal. The apparatus comprises a weighter configured to weight one of the sub-band signals representing the given frequency band of the time-frequency-domain representation with the time-varying gain values, to obtain a weighted sub-band signal. The gain-value determinator is configured to obtain one or more quantitative feature-values describing one or more features of the input audio signal and to provide the gain-value as a function of the one or more quantitative feature values such that the gain values are quantitatively dependent on the quantitative values. The gain value determinator is configured to determine the gain values such that ambience components are emphasized over non-ambience components in the weighted sub-band signal.
摘要翻译： 一种用于从输入音频信号中提取环境信号的装置包括：增益值确定器，被配置为根据输入音频信号的时间 - 频率分布的给定频带来确定时变环境信号增益值的序列，依赖于 输入音频信号。 该装置包括被配置为将表示时间 - 频域表示的给定频带的子带信号中的一个与时变增益值加权的权重器，以获得加权子带信号。 增益值确定器被配置为获得描述输入音频信号的一个或多个特征的一个或多个定量特征值，并且将增益值提供为一个或多个定量特征值的函数，使得增益值为 定量依赖于定量值。 增益值确定器被配置为确定增益值，使得氛围分量在加权子带信号中的非环境分量上被强调。
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9.发明授权Noise filer, noise filling parameter calculator encoded audio signal representation, methods and computer program 有权噪声滤波器，噪声填充参数计算器编码音频信号表示，方法和计算机程序公开(公告)号：US08983851B2
公开(公告)日：2015-03-17
申请号：US13004493
申请日：2011-01-11
申请人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L19/00 , G10L19/032 , G10L19/02 , G10L19/028 , G10L19/035 , G10L25/18
CPC分类号： G10L19/035 , G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/028 , G10L19/032 , G10L25/18
摘要： A noise filler for providing a noise-filled spectral representation of an audio signal on the basis of an input spectral representation of the audio signal has a spectral region identifier configured to identify spectral regions of the input spectral representation spaced from non-zero spectral regions of the input spectral representation by at least one intermediate spectral region, to obtain identified spectral regions, and a noise inserter configured to selectively introduce noise into the identified spectral regions to obtain the noise-filled spectral representation of the audio signal. A noise filling parameter calculator for providing a noise filling parameter on the basis of a quantized spectral representation of an audio signal has a spectral region identifier, as mentioned above, and a noise value calculator configured to selectively consider quantization errors of the identified spectral regions for a calculation of the noise filling parameter. Accordingly, an encoded audio signal representation representing the audio signal can be obtained.
摘要翻译： 用于基于音频信号的输入频谱表示来提供音频信号的噪声填充频谱表示的噪声填充器具有频谱区域标识符，其被配置为识别从非零频谱区域间隔开的输入频谱表示的频谱区域 通过至少一个中间光谱区域的输入光谱表示，以获得所识别的光谱区域，以及噪声插入器，被配置为选择性地将噪声引入所识别的光谱区域中，以获得音频信号的噪声填充的频谱表示。 用于根据音频信号的量化频谱表示提供噪声填充参数的噪声填充参数计算器具有如上所述的频谱区域标识符，以及噪声值计算器，被配置为选择性地考虑所识别的频谱区域的量化误差 噪声填充参数的计算。 因此，可以获得表示音频信号的编码音频信号表示。
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10.发明授权Encoder, decoder and methods for encoding and decoding data segments representing a time-domain data stream 有权用于编码和解码表示时域数据流的数据段的编码器，解码器和方法公开(公告)号：US08818796B2
公开(公告)日：2014-08-26
申请号：US12518627
申请日：2007-12-07
申请人： Ralf Geiger , Max Neuendorf , Yoshikazu Yokotani , Nikolaus Rettelbach , Juergen Herre , Stefan Geyersberger
发明人： Ralf Geiger , Max Neuendorf , Yoshikazu Yokotani , Nikolaus Rettelbach , Juergen Herre , Stefan Geyersberger
IPC分类号： G10L21/00
CPC分类号： G10L19/18 , G10L19/00 , G10L19/02 , G10L19/022 , G10L19/032 , G10L19/265 , H04N19/00 , H04N21/2368 , H04N21/2383 , H04N21/2662 , H04N21/4341 , H04N21/4382
摘要： An apparatus for decoding data segments representing a time-domain data stream, a data segment being encoded in the time domain or in the frequency domain, a data segment being encoded in the frequency domain having successive blocks of data representing successive and overlapping blocks of time-domain data samples. The apparatus includes a time-domain decoder for decoding a data segment being encoded in the time domain and a processor for processing the data segment being encoded in the frequency domain and output data of the time-domain decoder to obtain overlapping time-domain data blocks. The apparatus further includes an overlap/add-combiner for combining the overlapping time-domain data blocks to obtain a decoded data segment of the time-domain data stream.
摘要翻译： 一种用于解码表示时域数据流的数据段的装置，在时域或频域中被编码的数据段，在频域中编码的数据段具有表示连续和重叠的时间块的连续的数据块 - 域数据样本。 该装置包括用于对在时域中编码的数据段进行解码的时域解码器和用于处理在频域中编码的数据段的处理器，并输出时域解码器的数据以获得重叠的时域数据块 。 该装置还包括用于组合重叠的时域数据块以获得时域数据流的解码数据段的重叠/加法组合器。
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