公开(公告)号：US07340391B2

公开(公告)日：2008-03-04

申请号：US11464315

申请日：2006-08-14

申请人： Juergen Herre ,  Michael Schug ,  Alexander Groeschel

发明人： Juergen Herre ,  Michael Schug ,  Alexander Groeschel

IPC分类号： G10L19/04

CPC分类号： G10L19/03 ,  G10L19/008

摘要： An apparatus for processing a multi-channel signal includes a means for determining a similarity between a first one of two channels and a second one of the two channels. Furthermore, a means for performing a prediction filtering of the spectral coefficients is provided, which is formed to perform a prediction filtering with only a single prediction filter for both channels in case of high similarity between the first and the second channel, and to perform a prediction filtering with two separate prediction filters in case of a dissimilarity between the first and the second channel. With this, an introduction of stereo artifacts and a deterioration of the coding gain in stereo coding techniques are avoided.

摘要翻译： 用于处理多信道信号的装置包括用于确定两个信道中的第一个信道和两个信道中的第二信道之间的相似性的装置。 此外，提供了一种用于执行频谱系数的预测滤波的装置，其被形成为在第一和第二信道之间具有高相似性的情况下仅对两个信道执行预测滤波，并且执行 在第一和第二信道之间具有不相似性的情况下，使用两个单独的预测滤波器进行预测滤波。 由此，避免立体声伪影的引入和立体声编码技术中的编码增益的恶化。

公开(公告)号：US20070127717A1

公开(公告)日：2007-06-07

申请号：US11557023

申请日：2006-11-06

申请人： Juergen Herre ,  Eric Allamanche ,  Oliver Hellmuth ,  Thorsten Kastner

发明人： Juergen Herre ,  Eric Allamanche ,  Oliver Hellmuth ,  Thorsten Kastner

IPC分类号： H04N7/167

CPC分类号： G10L25/48

摘要： For analyzing an information signal having a sequence of blocks of information units, wherein a plurality of consecutive blocks of the sequence of blocks represents an information entity, using a sequence of fingerprints for the sequence of blocks, identification results are provided for consecutive fingerprints, wherein an identification result represents an association of a block of information units with a predetermined information entity. Then at least two hypotheses are formed from the identification results for the consecutive fingerprints, wherein a first hypothesis is an assumption for the association of the sequence of blocks with a first information entity, and wherein the second hypothesis is an assumption for the association of the sequence of blocks with the second information entity. Then various hypotheses are examined to obtain an examination result on the basis of which there is then made a statement on the information signal. This achieves a meaningful and reliable time-continuous analysis of an information signal.

摘要翻译： 为了分析具有信息单元块序列的信息信号，其中块序列的多个连续块表示信息实体，使用块序列的指纹序列，为连续指纹提供识别结果，其中 识别结果表示信息单元块与预定信息实体的关联。 然后，从连续指纹的识别结果形成至少两个假设，其中第一假设是块的序列与第一信息实体的关联的假设，并且其中第二假设是关于 具有第二信息实体的块序列。 然后检查各种假设以获得检查结果，然后根据该结果对信息信号进行声明。 这实现了对信息信号的有意义和可靠的时间连续分析。

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。

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。

公开(公告)号：US07003448B1

公开(公告)日：2006-02-21

申请号：US09980534

申请日：2000-04-12

申请人： Pierre Lauber ,  Martin Dietz ,  Juergen Herre ,  Reinhold Boehm ,  Ralph Sperschneider ,  Daniel Homm

发明人： Pierre Lauber ,  Martin Dietz ,  Juergen Herre ,  Reinhold Boehm ,  Ralph Sperschneider ,  Daniel Homm

IPC分类号： G10L19/00

CPC分类号： G10L19/005

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20050105726A1

公开(公告)日：2005-05-19

申请号：US10502622

申请日：2003-02-25

申请人： Christian Neubauer ,  Juergen Herre ,  Ralph Kulessa ,  Frank Siebenhaar ,  Wolfgang Spinnler

发明人： Christian Neubauer ,  Juergen Herre ,  Ralph Kulessa ,  Frank Siebenhaar ,  Wolfgang Spinnler

IPC分类号： G06T1/00 ,  H04N7/167

CPC分类号： G06T1/0085 ,  G06T1/005 ,  G06T2201/0065

摘要： 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.

摘要翻译： 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。

公开(公告)号：US09361896B2

公开(公告)日：2016-06-07

申请号：US14151152

申请日：2014-01-09

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： G10L19/008 ,  H04S3/00

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。

公开(公告)号：US09245530B2

公开(公告)日：2016-01-26

申请号：US13446747

申请日：2012-04-13

申请人： Juergen Herre ,  Cornelia Falch ,  Leon Terentiv

发明人： Juergen Herre ,  Cornelia Falch ,  Leon Terentiv

IPC分类号： H04R5/00 ,  G10L19/008

CPC分类号： G10L19/008

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 a parametric side information associated with the downmix signal representation has a parameter adjuster. The parameter adjuster is configured to receive one or more 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 an average value of a plurality of parameter values, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for parameters deviating from optimal parameters by more than a predetermined deviation.

摘要翻译： 基于降混信号表示和与下混合信号表示相关联的参数侧信息来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具有参数调整器。 参数调整器被配置为接收一个或多个参数，并且在其基础上提供一个或多个调整参数。 参数调整器被配置为根据多个参数值的平均值来提供一个或多个经调整的参数，使得至少由于使用非最佳参数引起的上混信号表示的失真至少对于参数 偏离最佳参数大于预定偏差。

公开(公告)号：US08891797B2

公开(公告)日：2014-11-18

申请号：US13289252

申请日：2011-11-04

申请人： Oliver Thiergart ,  Cornelia Falch ,  Fabian Kuech ,  Giovanni Del Galdo ,  Juergen Herre ,  Markus Kallinger

发明人： Oliver Thiergart ,  Cornelia Falch ,  Fabian Kuech ,  Giovanni Del Galdo ,  Juergen Herre ,  Markus Kallinger

IPC分类号： H04R11/04 ,  G06F17/00 ,  G10L21/0272 ,  G10L19/008

CPC分类号： G10L21/0272 ,  G10L19/008

摘要： An audio format transcoder for transcoding an input audio signal, the input audio signal having at least two directional audio components. The audio format transcoder including a converter for converting the input audio signal into a converted signal, the converted signal having a converted signal representation and a converted signal direction of arrival. The audio format transcoder further includes a position provider for providing at least two spatial positions of at least two spatial audio sources and a processor for processing the converted signal representation based on the at least two spatial positions to obtain at least two separated audio source measures.

摘要翻译： 一种用于对输入音频信号进行代码转换的音频格式转码器，所述输入音频信号具有至少两个方向音频分量。 音频格式转码器包括用于将输入音频信号转换成转换信号的转换器，转换后的信号具有转换的信号表示和转换的信号到达方向。 音频格式转码器还包括用于提供至少两个空间音频源的至少两个空间位置的位置提供器和用于基于至少两个空间位置处理转换的信号表示的处理器，以获得至少两个分离的音频源测量。

公开(公告)号：US08571877B2

公开(公告)日：2013-10-29

申请号：US13475084

申请日：2012-05-18

申请人： Jonas Engdegard ,  Heiko Purnhagen ,  Juergen Herre ,  Cornelia Falch ,  Oliver Hellmuth ,  Leon Terentiv

发明人： Jonas Engdegard ,  Heiko Purnhagen ,  Juergen Herre ,  Cornelia Falch ,  Oliver Hellmuth ,  Leon Terentiv

IPC分类号： G10L19/00

CPC分类号： G10L19/008

摘要： An apparatus for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information, which are included in a bitstream representation of an audio content, in independence on a user-specified rendering matrix, the apparatus has a distortion limiter configured to obtain a modified rendering matrix using a linear combination of a user-specified rendering matrix in a target rendering matrix in dependence on a linear combination parameter. The apparatus also has a signal processor configured to obtain the upmix signal representation on the basis of the downmix signal representation and the object-related parametric information using the modified rendering matrix. The apparatus is also configured to evaluate a bitstream element representing the linear combination parameter in order to obtain the linear combination parameter.

摘要翻译： 一种用于根据用户指定的渲染矩阵独立地包括在音频内容的比特流表示中的下混信号表示和对象相关的参数信息来提供上混合信号表示的装置，该装置具有 失真限制器被配置为根据线性组合参数在目标渲染矩阵中使用用户指定的渲染矩阵的线性组合来获得修改的渲染矩阵。 该装置还具有信号处理器，其被配置为基于下混合信号表示和使用修改的渲染矩阵的对象相关参数信息来获得上混信号表示。 该装置还被配置为评估表示线性组合参数的比特流元件，以便获得线性组合参数。