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61. 发明授权

US08908873B2 Method and apparatus for conversion between multi-channel audio formats 有权
标题翻译：用于多声道音频格式之间转换的方法和装置
公开(公告)号：US08908873B2
公开(公告)日：2014-12-09
申请号：US12530645
申请日：2008-02-01
申请人： Juergen Herre , Ville Pulkki
发明人： Juergen Herre , Ville Pulkki
IPC分类号： H04R5/00
CPC分类号： G10L19/173 , G10L19/008 , H04S3/02 , H04S2420/11
摘要： An input multi-channel representation is converted into a different output multi-channel representation of a spatial audio signal, in that an intermediate representation of the spatial audio signal is derived, the intermediate representation having direction parameters indicating a direction of origin of a portion of the spatial audio signal; and in that the output multi-channel representation of the spatial audio signal is generated using the intermediate representation of the spatial audio signal.
摘要翻译：输入多声道表示被转换成空间音频信号的不同输出多声道表示，因为导出空间音频信号的中间表示，中间表示具有指示一部分的原点方向的方向参数空间音频信号; 并且使用空间音频信号的中间表示来生成空间音频信号的输出多声道表示。

62. 发明授权

US08731950B2 Apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation, audio signal decoder, audio signal transcoder, audio signal encoder, audio bitstream, method and computer program using an object-related parametric information 有权
标题翻译：用于提供一个或多个经调整的参数的装置，用于基于下混合信号表示，音频信号解码器，音频信号代码转换器，音频信号编码器，音频比特流，使用对象相关参数的方法和计算机程序提供上混合信号表示信息
公开(公告)号：US08731950B2
公开(公告)日：2014-05-20
申请号：US13284583
申请日：2011-10-28
申请人： Juergen Herre , Andreas Hoelzer , Leonid Terentiev , Thorsten Kastner , Cornelia Falch , Heiko Purnhagen , Jonas Engdegard , Falko Ridderbusch
发明人： Juergen Herre , Andreas Hoelzer , Leonid Terentiev , Thorsten Kastner , Cornelia Falch , Heiko Purnhagen , Jonas Engdegard , Falko Ridderbusch
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/20
摘要： An apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information includes a parameter adjuster. The parameter adjuster is configured to receive one or more input parameters and to provide, on the basis thereof, one or more adjusted parameters. The parameter adjuster is configured to provide the one or more adjusted parameters in dependence on the one or more input parameters and the object-related parametric information, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for input parameters deviating from optimal parameters by more than a predetermined deviation.
摘要翻译：基于下混合信号表示和对象相关参数信息，提供用于提供上混合信号表示的一个或多个调整参数的装置包括参数调整器。参数调整器被配置为接收一个或多个输入参数并且在其基础上提供一个或多个调整的参数。参数调整器被配置为根据一个或多个输入参数和对象相关参数信息来提供一个或多个经调整的参数，使得由使用非最优参数引起的上混信号表示的失真减少至少对于偏离最佳参数的输入参数大于预定偏差。

63. 发明授权

US08706480B2 Audio encoder for encoding an audio signal having an impulse-like portion and stationary portion, encoding methods, decoder, decoding method, and encoding audio signal 有权
标题翻译：用于编码具有脉冲状部分和静止部分的音频信号的音频编码器，编码方法，解码器，解码方法和编码音频信号
公开(公告)号：US08706480B2
公开(公告)日：2014-04-22
申请号：US12663828
申请日：2008-06-05
申请人： Juergen Herre , Ralf Geiger , Stefan Bayer , Guillaume Fuchs , Ulrich Kraemer , Nikolaus Rettelbach , Bernhard Grill
发明人： Juergen Herre , Ralf Geiger , Stefan Bayer , Guillaume Fuchs , Ulrich Kraemer , Nikolaus Rettelbach , Bernhard Grill
IPC分类号： G10L19/14
CPC分类号： G10L19/20
摘要： An audio encoder for encoding an audio signal includes an impulse extractor for extracting an impulse-like portion from the audio signal. This impulse-like portion is encoded and forwarded to an output interface. Furthermore, the audio encoder includes a signal encoder which encodes a residual signal derived from the original audio signal so that the impulse-like portion is reduced or eliminated in the residual audio signal. The output interface forwards both, the encoded signals, i.e., the encoded impulse signal and the encoded residual signal for transmission or storage. On the decoder-side, both signal portions are separately decoded and then combined to obtain a decoded audio signal.
摘要翻译：用于对音频信号进行编码的音频编码器包括用于从音频信号中提取脉冲状部分的脉冲提取器。该脉冲状部分被编码并转发到输出接口。此外，音频编码器包括信号编码器，其对从原始音频信号导出的残留信号进行编码，从而在残留音频信号中减少或消除脉冲状部分。输出接口转发编码的信号，即编码的脉冲信号和编码的残留信号用于传输或存储。在解码器侧，两个信号部分被单独解码，然后被组合以获得解码的音频信号。

64. 发明授权

US08644972B2 Temporal and spatial shaping of multi-channel audio signals 有权
标题翻译：多通道音频信号的时空整形
公开(公告)号：US08644972B2
公开(公告)日：2014-02-04
申请号：US13007441
申请日：2011-01-14
申请人： Sascha Disch , Juergen Herre , Matthias Neusinger , Dirk Jeroen Breebaart , Gerard Hotho
发明人： Sascha Disch , Juergen Herre , Matthias Neusinger , Dirk Jeroen Breebaart , Gerard Hotho
IPC分类号： G06F19/00 , H04R5/00
CPC分类号： G10L19/008 , H04S3/008
摘要： A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form parameter representation representing a wave form of an intermediate resolution representation of the selected channel is derived, the wave form parameter representation including a sequence of intermediate wave form parameters having a time resolution lower than the high time resolution of the sampling values and higher than a time resolution defined by a frame repetition rate. The wave form parameter representation with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to that one of the selected original channel. The time scale on which the shaping is performed is shorter than the time scale of a framewise processing, thus enhancing the quality of the reconstructed channel. On the other hand, the shaping time scale is larger than the time scale of the sampling values, significantly reducing the amount of data needed by the wave form parameter representation.
摘要翻译：当表示所选频道的中间分辨率表示的波形的波形参数表示被导出时，由具有高时间分辨率的采样值组成的帧表示的多信道信号的选择信道可以被更高质量地编码波形参数表示，包括具有低于采样值的高时间分辨率的时间分辨率并且高于由帧重复率定义的时间分辨率的中间波形参数序列。具有中间分辨率的波形参数表示可用于对重建的信道进行整形以检索具有接近所选择的原始信道中的那一个的信号包络的信道。进行整形的时间标度比框架处理的时间标度短，从而提高重构信道的质量。另一方面，成形时间尺度大于采样值的时间尺度，显着减少波形参数表示所需的数据量。

65. 发明授权

US08588427B2 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
标题翻译：用于在装置中提取环境信号的装置和方法以及用于获得用于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：US08588427B2
公开(公告)日：2013-11-19
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： H04R5/00
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。

66. 发明授权

US08407060B2 Audio decoder, audio object encoder, method for decoding a multi-audio-object signal, multi-audio-object encoding method, and non-transitory computer-readable medium therefor 有权
公开(公告)号：US08407060B2
公开(公告)日：2013-03-26
申请号：US13451649
申请日：2012-04-20
申请人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
发明人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
IPC分类号： G10L19/00
CPC分类号： G10L19/04 , G10L19/008 , G10L19/20 , H04S3/002 , H04S2420/03 , H04S2420/07
摘要： An audio decoder for decoding a multi-audio-object signal having an audio signal of a first type and an audio signal of a second type encoded therein is described, the multi-audio-object signal having a downmix signal and side information, the side information having level information of the audio signals of the first and second types in a first predetermined time/frequency resolution, and a residual signal specifying residual level values in a second predetermined time/frequency resolution, the audio decoder having a processor for computing prediction coefficients based on the level information; and an up-mixer for up-mixing the downmix signal based on the prediction coefficients and the residual signal to obtain a first up-mix audio signal approximating the audio signal of the first type and/or a second up-mix audio signal approximating the audio signal of the second type.

67. 发明授权

US08401862B2 Audio encoder, method for providing output signal, bandwidth extension decoder, and method for providing bandwidth extended audio signal 有权
标题翻译：音频编码器，用于提供输出信号的方法，带宽扩展解码器和用于提供带宽扩展音频信号的方法
公开(公告)号：US08401862B2
公开(公告)日：2013-03-19
申请号：US13158547
申请日：2011-06-13
申请人： Frederik Nagel , Sascha Disch , Guillaume Fuchs , Juergen Herre , Christian Greibel
发明人： Frederik Nagel , Sascha Disch , Guillaume Fuchs , Juergen Herre , Christian Greibel
IPC分类号： G10L19/00
CPC分类号： G10L19/265 , G10L19/00 , G10L19/24 , G10L21/038
摘要： An audio encoder for providing an output signal using an input audio signal includes a patch generator, a comparator and an output interface. The patch generator generates at least one bandwidth extension high-frequency signal, wherein a bandwidth extension high-frequency signal includes a high-frequency band. The high-frequency band of the bandwidth extension high-frequency signal is based on a low frequency band of the input audio signal. A comparator calculates a plurality of comparison parameters. A comparison parameter is calculated based on a comparison of the input audio signal and a generated bandwidth extension high-frequency signal. Each comparison parameter of the plurality of comparison parameters is calculated based on a different offset frequency between the input audio signal and a generated bandwidth extension high-frequency signal. Further, the comparator determines a comparison parameter from the plurality of comparison parameters, wherein the determined comparison parameter fulfils a predefined criterion.
摘要翻译：用于使用输入音频信号提供输出信号的音频编码器包括片生成器，比较器和输出接口。贴片发生器产生至少一个带宽扩展高频信号，其中带宽扩展高频信号包括高频带。带宽扩展高频信号的高频带基于输入音频信号的低频带。比较器计算多个比较参数。基于输入音频信号和产生的带宽扩展高频信号的比较来计算比较参数。基于输入音频信号与生成的带宽扩展高频信号之间的不同偏移频率来计算多个比较参数的每个比较参数。此外，比较器确定来自多个比较参数的比较参数，其中确定的比较参数满足预定标准。

68. 发明授权

US08280744B2 Audio decoder, audio object encoder, method for decoding a multi-audio-object signal, multi-audio-object encoding method, and non-transitory computer-readable medium therefor 有权
标题翻译：音频解码器，音频对象编码器，用于解码多音频对象信号的方法，多音频对象编码方法及其非暂时性的计算机可读介质
公开(公告)号：US08280744B2
公开(公告)日：2012-10-02
申请号：US12253515
申请日：2008-10-17
申请人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
发明人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
IPC分类号： G10L19/00
CPC分类号： G10L19/04 , G10L19/008 , G10L19/20 , H04S3/002 , H04S2420/03 , H04S2420/07
摘要： An audio decoder for decoding a multi-audio-object signal having an audio signal of a first type and an audio signal of a second type encoded therein is described, the multi-audio-object signal having a downmix signal and side information, the side information having level information of the audio signals of the first and second types in a first predetermined time/frequency resolution, and a residual signal specifying residual level values in a second predetermined time/frequency resolution, the audio decoder having a processor for computing prediction coefficients based on the level information; and an up-mixer for up-mixing the downmix signal based on the prediction coefficients and the residual signal to obtain a first up-mix audio signal approximating the audio signal of the first type and/or a second up-mix audio signal approximating the audio signal of the second type.
摘要翻译：描述用于解码具有第一类型的音频信号和其中编码的第二类型的音频信号的多音频对象信号的音频解码器，具有下混信号和侧信息的多音频对象信号在第一预定时间/频率分辨率中具有第一和第二类型的音频信号的电平信息的信息，以及指定第二预定时间/频率分辨率中的剩余电平值的残差信号，该音频解码器具有用于计算预测系数的处理器基于等级信息; 以及上混频器，用于基于预测系数和残差信号对混合信号进行混频，以获得近似第一类型的音频信号的第一上混合音频信号和/或接近第第二种类型的音频信号。

69. 发明申请

US20120245947A1 MULTI-MODE AUDIO SIGNAL DECODER, MULTI-MODE AUDIO SIGNAL ENCODER, METHODS AND COMPUTER PROGRAM USING A LINEAR-PREDICTION-CODING BASED NOISE SHAPING 有权
标题翻译：多模式音频信号解码器，多模式音频信号编码器，使用基于线性预测编码的噪声形状的方法和计算机程序
公开(公告)号：US20120245947A1
公开(公告)日：2012-09-27
申请号：US13441469
申请日：2012-04-06
申请人： Max Neuendorf , Guillaume Fuchs , Nikolaus Rettelbach , Tom Baeckstroem , Jeremie Lecomte , Juergen Herre
发明人： Max Neuendorf , Guillaume Fuchs , Nikolaus Rettelbach , Tom Baeckstroem , Jeremie Lecomte , Juergen Herre
IPC分类号： G10L19/00
CPC分类号： G10L19/20 , G10L19/022
摘要： A multi-mode audio signal decoder has a spectral value determinator to obtain sets of decoded spectral coefficients for a plurality of portions of an audio content and a spectrum processor configured to apply a spectral shaping to a set of spectral coefficients in dependence on a set of linear-prediction-domain parameters for a portion of the audio content encoded in a linear-prediction mode, and in dependence on a set of scale factor parameters for a portion of the audio content encoded in a frequency-domain mode. The audio signal decoder has a frequency-domain-to-time-domain converter configured to obtain a time-domain audio representation on the basis of a spectrally-shaped set of decoded spectral coefficients for a portion of the audio content encoded in the linear-prediction mode and for a portion of the audio content encoded in the frequency domain mode. An audio signal encoder is also described.
摘要翻译：多模式音频信号解码器具有频谱值确定器，以获得用于音频内容的多个部分的解码频谱系数集合;以及频谱处理器，被配置为将频谱整形应用于一组频谱系数用于以线性预测模式编码的音频内容的一部分的线性预测域参数，并且依赖于以频域模式编码的音频内容的一部分的一组比例因子参数。音频信号解码器具有频域 - 时域转换器，其被配置为基于频谱形式的解码频谱系数集来获得时域音频表示，所述解码频谱系数被编码在线性 - 预测模式和频域模式中编码的音频内容的一部分。还描述了音频信号编码器。

70. 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。

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