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    • 82. 发明申请
    • Individual channel shaping for BCC schemes and the like
    • BCC方案的单个通道整形等
    • US20060083385A1
    • 2006-04-20
    • US11006482
    • 2004-12-07
    • Eric AllamancheSascha DischChristof FallerJuergen Herre
    • Eric AllamancheSascha DischChristof FallerJuergen Herre
    • H04R5/00
    • G10L19/008
    • 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.
    • 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。
    • 83. 发明授权
    • Method and device for error concealment in an encoded audio-signal and method and device for decoding an encoded audio signal
    • 用于编码音频信号中的错误隐藏的方法和装置,以及用于对编码的音频信号进行解码的方法和装置
    • US07003448B1
    • 2006-02-21
    • US09980534
    • 2000-04-12
    • Pierre LauberMartin DietzJuergen HerreReinhold BoehmRalph SperschneiderDaniel Homm
    • Pierre LauberMartin DietzJuergen HerreReinhold BoehmRalph SperschneiderDaniel Homm
    • G10L19/00
    • G10L19/005
    • In a method for concealing an error in an encoded audio signal a set of spectral coefficients is subdivided into at least two sub-bands (14), whereupon the sub-bands are subjected to a re-verse transform (16). A specific prediction is performed (18) for each quasi time signal of a sub-band to obtain an estimated temporal representation for a sub-band of a set of spectral coefficients following the current set. A forward transform (20) of the time signal of each sub-band provides estimated spectral coefficients which can be used (28) instead of erroneous spectral coefficients of a following set of spectral coefficients, e.g. in order to conceal transmission errors. Transforming at the sub-band level provides independence from transform characteristics such as block length, window type and MDCT algorithm while at the same time preserving spectral processing for error concealment. Thus the spectral characteristics of audio signals can also be taken into account during error concealment.
    • 在用于隐藏编码音频信号中的错误的方法中,一组频谱系数被细分为至少两个子带(14),于是子带经受逆变换(16)。 对于子带的每个准时间信号执行特定的预测(18),以获得在当前集合之后的一组频谱系数的子带的估计时间表示。 每个子带的时间信号的正向变换(20)提供可以使用的估计的频谱系数(28),而不是以下的频谱系数集合的错误频谱系数,例如。 以掩盖传输错误。 在子带级变换提供独立于诸如块长度,窗口类型和MDCT算法的变换特征,同时保留用于错误隐藏的频谱处理。 因此,在错误隐藏期间也可以考虑音频信号的频谱特性。
    • 84. 发明申请
    • Method and device for embedding watermark information and method and device for extracting embedded watermark information
    • 用于嵌入水印信息的方法和装置以及用于提取嵌入水印信息的方法和装置
    • US20050105726A1
    • 2005-05-19
    • US10502622
    • 2003-02-25
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • G06T1/00H04N7/167
    • G06T1/0085G06T1/005G06T2201/0065
    • For embedding watermark information into an information signal including audio and/or video information, first of all a synchronization sequence with a plurality of synchronization sequence units and a data sequence with a plurality of data sequence units are provided, wherein between the data sequence and the synchronization sequence a time shift is present and wherein a degree of shifting depends on the watermark information. A combination means generates a combination sequence having a plurality of combination sequence units from the synchronization sequence and the data sequence shifted with regard to the synchronization sequence, wherein the combination sequence units are derived from synchronization sequence units and shifted data sequence units. The combination sequence is combined with the information signal in order to embed the watermark information into the information signal. A watermark extractor receives a synchronization sequence correlation peak for every data sequence correlation peak associated with the same and therefore determines the watermark information on the basis of the time interval between the synchronization sequence correlation peak and the data sequence correlation peak in a secure and robust way. The concept is robust, provides a high data rate and is simultaneously flexible with regard to the weighting of synchronization energy and data energy and with regard to the robustness on the one hand and data rate on the other hand, respectively.
    • 为了将水印信息嵌入到包括音频和/或视频信息的信息信号中,首先提供具有多个同步序列单元的同步序列和具有多个数据序列单元的数据序列,其中在数据序列和 同步序列存在时移,其中移位程度取决于水印信息。 组合装置根据同步序列产生具有多个组合序列单元的组合序列和相对于同步序列移位的数据序列,其中组合序列单元从同步序列单元和移位数据序列单元导出。 将组合序列与信息信号组合,以将水印信息嵌入到信息信号中。 水印提取器接收与其相关联的每个数据序列相关峰值的同步序列相关峰值,因此以安全和鲁棒的方式基于同步序列相关峰值与数据序列相关峰值之间的时间间隔来确定水印信息 。 该概念是鲁棒的,提供高数据速率,并且在同步能量和数据能量的加权方面以及另一方面一方面的鲁棒性和数据速率方面同时是灵活的。
    • 85. 发明授权
    • Temporal and spatial shaping of multi-channel audio signal
    • 多声道音频信号的时空整形
    • US09361896B2
    • 2016-06-07
    • US14151152
    • 2014-01-09
    • Sascha DischJuergen HerreMatthias NeusingerDirk Jeroen BreebaartGerard Hotho
    • Sascha DischJuergen HerreMatthias NeusingerDirk Jeroen BreebaartGerard Hotho
    • G10L19/008H04S3/00
    • G10L19/008H04S3/008
    • 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.
    • 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。
    • 90. 发明授权
    • Device and method for generating a multi-channel signal or a parameter data set
    • 用于产生多声道信号或参数数据组的装置和方法
    • US08731204B2
    • 2014-05-20
    • US11683741
    • 2007-03-08
    • Ralph SperschneiderJuergen HerreJohannes HilpertChristian ErtelStefan Geyersberger
    • Ralph SperschneiderJuergen HerreJohannes HilpertChristian ErtelStefan Geyersberger
    • H04R5/00
    • G10L19/008
    • 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.
    • 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。