公开(公告)号：US20050175252A1

公开(公告)日：2005-08-11

申请号：US10220651

申请日：2001-02-16

申请人： Juergen Herre ,  Martin Dietz ,  Thomas Sporer ,  Michael Schug ,  Wolfgang Schildbach

发明人： Juergen Herre ,  Martin Dietz ,  Thomas Sporer ,  Michael Schug ,  Wolfgang Schildbach

IPC分类号： H04N19/00 ,  H04N19/126 ,  H04N19/40 ,  H04N19/60 ,  G06K9/36

CPC分类号： H04N19/00 ,  H04N19/126 ,  H04N19/40 ,  H04N19/60

摘要： An apparatus for analyzing an analysis time signal that has been generated from encoding and decoding an original time signal according to an encoding algorithm first, wherein first the encoding block raster underlying the analysis time signal used by the encoding algorithm is determined. Thereupon, the analysis time signal will be converted from its timely representation comprising a plurality of analysis spectral coefficients, to a spectral representation by using the established encoding block raster. Then, at least two analysis spectral coefficients or at least two spectral coefficients derived from the analysis spectral coefficients by multiplication of an encoding amplification factor or by multiplication with a compression function are grouped. Then, the greatest common divisor of the analysis spectral coefficients or the spectral coefficients derived from the analysis spectral coefficients will be calculated, corresponding to the quantization step width used when quantizing the encoding algorithm or an integer multiple of it. Then, in the case of an audio signal, the scale factor can easily be established for this group of spectral coefficients, i.e. for a scale factor band, from the quantization step width. Thus, all parameters used for the quantization of the original time signal are known, so that for quantizing the analysis time signal no longer full iteration loops have to be performed, which are, on the one hand, very computing time intensive and, on the other hand, introduce tandem encoding distortions.

摘要翻译： 一种用于分析根据编码算法首先对原始时间信号进行编码和解码而产生的分析时间信号的装置，其中首先确定编码算法使用的分析时间信号下面的编码块光栅。 因此，分析时间信号将通过使用所建立的编码块光栅从包括多个分析频谱系数的及时表示转换成频谱表示。 然后，将通过编码放大因子的乘法或通过与压缩函数相乘而从分析频谱系数导出的至少两个分析频谱系数或至少两个频谱系数分组。 然后，对应于当量化编码算法或其整数倍时使用的量化步长，将计算分析频谱系数的最大公约数或从分析频谱系数导出的频谱系数。 然后，在音频信号的情况下，从量化步长可以容易地为该组频谱系数建立比例因子，即缩放因子频带。 因此，用于原始时间信号的量化的所有参数是已知的，使得对于分析时间信号的量化不再必须执行完整的迭代循环，这一方面一方面非常计算时间密集，并且在 另一方面，引入串联编码失真。

公开(公告)号：US07181079B2

公开(公告)日：2007-02-20

申请号：US10220651

申请日：2001-02-16

申请人： Juergen Herre ,  Martin Dietz ,  Thomas Sporer ,  Michael Schug ,  Wolfgang Schildbach

发明人： Juergen Herre ,  Martin Dietz ,  Thomas Sporer ,  Michael Schug ,  Wolfgang Schildbach

IPC分类号： G06K9/36 ,  H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  G10L19/00 ,  G10L21/00

CPC分类号： H04N19/00 ,  H04N19/126 ,  H04N19/40 ,  H04N19/60

摘要： Analyzing an analysis time signal that has been generated from encoding and decoding and original time signal according to an encoding algorithm. The encoding block raster underlying the analysis time signal used by the encoding algorithm is determined. The analysis time signal is converted from its timely representation of analysis spectral coefficients to a spectral representation by using the established encoding block raster. At least two analysis spectral coefficients are grouped. The greatest common divisor of the analysis spectral coefficients are calculated, corresponding to the quantization step width used when quantizing the encoding algorithm or an integer multiple of it. In the case of an audio signal, the scale factor can easily be established for this group of spectral coefficients, i.e., for a scale factor band, from the quantization step width. All parameters used for the quantization of the original time signal are known; full iteration loops need not be performed.

摘要翻译： 根据编码算法分析从编码和解码产生的分析时间信号和原始时间信号。 确定由编码算法使用的分析时间信号的编码块光栅。 分析时间信号通过使用建立的编码块光栅从分析频谱系数的及时表示转换为频谱表示。 至少两个分析光谱系数被分组。 计算分析频谱系数的最大公约数，对应于量化编码算法时使用的量化步长或其整数倍。 在音频信号的情况下，从量化步长可以容易地为该组频谱系数（即，比例因子频带）建立比例因子。 用于量化原始时间信号的所有参数是已知的; 不需要执行完整的迭代循环。

公开(公告)号：US06750789B2

公开(公告)日：2004-06-15

申请号：US10168456

申请日：2002-10-25

申请人： Juergen Herre ,  Karlheinz Brandenburg ,  Thomas Sporer ,  Michael Schug ,  Wolfgang Schildbach

发明人： Juergen Herre ,  Karlheinz Brandenburg ,  Thomas Sporer ,  Michael Schug ,  Wolfgang Schildbach

IPC分类号： H03M700

CPC分类号： G10L19/02

摘要： In determining a coding block raster on which a decoded signal is based, a segment of the decoded signal is picked out first, said segment beginning at a certain output sampling value of the decoded signal. Said segment is then converted into a spectral representation, whereupon said spectral representation is then evaluated in relation to a predetermined criterion in order to obtain an evaluation result for the segment. This procedure is repeated for a plurality of different segments beginning at different output sampling values each, in order to obtain a plurality of evaluation results. Finally, the plurality of the evaluation results is searched in order to establish the evaluation result that has an extreme value as compared to the other evaluation results, in such a way that it can be assumed that the segment to which this evaluation result is allocated matches the coding block raster on which the decoded signal is based. This method can be used to determine the coding block raster for any decoded signal that has no explicit information about its coding block raster.

摘要翻译： 在确定解码信号所基于的编码块光栅时，首先选择解码信号的片段，所述片段以解码信号的特定输出采样值开始。 然后将所述段转换为频谱表示，然后根据预定标准对所述频谱表示进行评估，以获得该段的评估结果。 对于从不同的输出采样值开始的多个不同的段重复该过程，以获得多个评估结果。 最后，搜索多个评估结果以便建立与其他评估结果相比具有极值的评估结果，使得可以假定分配了该评估结果的分段匹配 解码信号所基于的编码块光栅。 该方法可以用于确定任何没有关于其编码块光栅的显式信息的解码信号的编码块栅格。

公开(公告)号：US07275036B2

公开(公告)日：2007-09-25

申请号：US10966780

申请日：2004-10-15

申请人： Ralf Geiger ,  Thomas Sporer ,  Karlheinz Brandenburg ,  Juergen Herre ,  Juergen Koller ,  Joachim Deguara

发明人： Ralf Geiger ,  Thomas Sporer ,  Karlheinz Brandenburg ,  Juergen Herre ,  Juergen Koller ,  Joachim Deguara

IPC分类号： G10L19/00

CPC分类号： G10L19/16 ,  G10L19/022 ,  G10L19/20 ,  G10L2019/0005

摘要： A time-discrete audio signal is processed to provide a quantization block with quantized spectral values. Furthermore, an integer spectral representation is generated from the time-discrete audio signal using an integer transform algorithm. The quantization block having been generated using a psychoacoustic model is inversely quantized and rounded to then form a difference between the integer spectral values and the inversely quantized rounded spectral values. The quantization block alone provides a lossy psychoacoustically coded/decoded audio signal after the decoding, whereas the quantization block, together with the combination block, provides a lossless or almost lossless coded and again decoded audio signal in the decoding. By generating the differential signal in the frequency domain, a simpler coder/decoder structure results.

摘要翻译： 处理时间离散音频信号以向量化块提供量化的频谱值。 此外，使用整数变换算法从时间离散音频信号生成整数谱表示。 已经使用心理声学模型产生的量化块被逆量化并舍入，从而形成整数频谱值和逆量化的舍入频谱值之间的差。 量化块单独提供在解码之后的有损心理声学编码/解码音频信号，而量化块与组合块一起在解码中提供无损或几乎无损的编码和再次解码的音频信号。 通过在频域中产生差分信号，可以得到更简单的编码器/解码器结构。

公开(公告)号：US07343287B2

公开(公告)日：2008-03-11

申请号：US10636149

申请日：2003-08-07

申请人： Ralf Geiger ,  Thomas Sporer ,  Karlheinz Brandenburg ,  Juergen Herre ,  Juergen Koller ,  Gerald Schuller

发明人： Ralf Geiger ,  Thomas Sporer ,  Karlheinz Brandenburg ,  Juergen Herre ,  Juergen Koller ,  Gerald Schuller

IPC分类号： G10L19/00

CPC分类号： G10L19/032 ,  G06F17/147 ,  G10L19/24

摘要： An apparatus for scalable encoding a spectrum of a signal including audio and/or video information, with the spectrum comprising binary spectral values, includes a means for generating a first sub-scaling layer and a second sub-scaling layer in addition to a means for forming the encoded signal, with the means for forming being implemented so as to include the first sub-scaling layer and the second sub-scaling layer into the encoded signal that the first and the second sub-scaling layer are separately decodable from each other. In contrast to a full-scaling layer, a sub-scaling layer includes only the bits of a certain order of a part of the binary spectral values in the band, so that, by additionally decoding a sub-scaling layer, a more finely controllable and a more finely scalable precision gain may be achieved.

摘要翻译： 一种用于对包括音频和/或视频信息的信号的频谱进行可分级编码的装置，其中包括二进制频谱值的频谱包括用于生成第一子缩放层和第二子缩放层的装置， 形成所述编码信号，所述用于形成的装置被实现为将所述第一子缩放层和所述第二子缩放层包括在所述编码信号中，所述第一和第二子缩放层可以彼此分开地解码。 与完全缩放层相反，子缩放层仅包括频带中二分谱值的一部分的一定顺序的位，使得通过附加地解码子缩放层，更精细地控制 并且可以实现更精细地扩展的精度增益。

公开(公告)号：US20050114126A1

公开(公告)日：2005-05-26

申请号：US10966780

申请日：2004-10-15

申请人： Ralf Geiger ,  Thomas Sporer ,  Karlheinz Brandenburg ,  Juergen Herre ,  Juergen Koller ,  Joachim Deguara

发明人： Ralf Geiger ,  Thomas Sporer ,  Karlheinz Brandenburg ,  Juergen Herre ,  Juergen Koller ,  Joachim Deguara

IPC分类号： G10L19/00 ,  G10L19/02 ,  G10L19/14

CPC分类号： G10L19/16 ,  G10L19/022 ,  G10L19/20 ,  G10L2019/0005

摘要： A time-discrete audio signal is processed to provide a quantization block with quantized spectral values. Furthermore, an integer spectral representation is generated from the time-discrete audio signal using an integer transform algorithm. The quantization block having been generated using a psychoacoustic model is inversely quantized and rounded to then form a difference between the integer spectral values and the inversely quantized rounded spectral values. The quantization block alone provides a lossy psychoacoustically coded/decoded audio signal after the decoding, whereas the quantization block, together with the combination block, provides a lossless or almost lossless coded and again decoded audio signal in the decoding. By generating the differential signal in the frequency domain, a simpler coder/decoder structure results.

摘要翻译： 处理时间离散音频信号以向量化块提供量化的频谱值。 此外，使用整数变换算法从时间离散音频信号生成整数频谱表示。 已经使用心理声学模型产生的量化块被逆量化并舍入，从而形成整数频谱值和逆量化的舍入频谱值之间的差。 量化块单独提供在解码之后的有损心理声学编码/解码音频信号，而量化块与组合块一起在解码中提供无损或几乎无损的编码和再次解码的音频信号。 通过在频域中产生差分信号，可以得到更简单的编码器/解码器结构。

公开(公告)号：US07948557B2

公开(公告)日：2011-05-24

申请号：US11241797

申请日：2005-09-29

申请人： Thomas Sporer ,  Michael Beckinger

发明人： Thomas Sporer ,  Michael Beckinger

IPC分类号： H04N9/475 ,  G06F3/00

CPC分类号： G03B31/04

摘要： An apparatus for generating a control signal for a film event system is described for synchronizing film events with an image reproduction, wherein a film comprises film information applied in a time sequence, and the apparatus comprises a means for storing the film information, wherein a time scale is associated to the stored film information, a means for receiving a section read from the film, a means for comparing the read section to the stored film information and a means for determining the control signal based on the comparison and the time scale.

摘要翻译： 描述了一种用于生成电影事件系统的控制信号的装置，用于使电影事件与图像再现同步，其中电影包括以时间顺序应用的电影信息，并且该装置包括用于存储电影信息的装置，其中时间 缩放与所存储的电影信息相关联，用于接收从电影读取的部分的装置，用于将读取部分与存储的电影信息进行比较的装置和用于基于比较和时间尺度确定控制信号的装置。

公开(公告)号：US07512539B2

公开(公告)日：2009-03-31

申请号：US10479398

申请日：2002-05-28

申请人： Ralf Geiger ,  Thomas Sporer ,  Karlheinz Brandenburg ,  Jürgen Herre ,  Jürgen Koller

发明人： Ralf Geiger ,  Thomas Sporer ,  Karlheinz Brandenburg ,  Jürgen Herre ,  Jürgen Koller

IPC分类号： G06F17/14 ,  G10L19/00

CPC分类号： G10L19/0212 ,  G06F17/147

摘要： An integer transform, which provides integer output values, carries out the TDAC function of a MDCT in the time domain before the forward transform. In overlapping windows, this results in a Givens rotation which may be represented by lifting matrices, wherein time-discrete sampled values of an audio signal may at first be summed up on a pair-wise basis to build a vector so as to be sequentially provided with a lifting matrix. After each multiplication of a vector by a lifting matrix, a rounding step is carried out such that, on the output-side, only integers will result. By transforming the windowed integer sampled value with an integer transform, a spectral representation with integer spectral values may be obtained. The inverse mapping with an inverse rotation matrix and corresponding inverse lifting matrices results in an exact reconstruction.

摘要翻译： 提供整数输出值的整数变换在正向变换之前的时域中执行MDCT的TDAC功能。 在重叠窗口中，这导致Givens旋转，其可以由提升矩阵表示，其中音频信号的时间离散采样值可以首先在成对的基础上相加以构建向量以便顺序地提供 与提升矩阵。 在通过提升矩阵对向量进行每次乘法之后，执行舍入步骤，使得在输出侧仅将导致整数。 通过用整数变换变换窗口整数采样值，可以获得具有整数频谱值的频谱表示。 具有逆旋转矩阵和对应的反提升矩阵的逆映射导致精确重建。

公开(公告)号：US20070196022A1

公开(公告)日：2007-08-23

申请号：US11386077

申请日：2006-03-20

申请人： Ralf Geiger ,  Gerald Schuller ,  Thomas Sporer

发明人： Ralf Geiger ,  Gerald Schuller ,  Thomas Sporer

IPC分类号： G06K9/36

CPC分类号： G10L19/0212 ,  G06F17/147 ,  H04N19/60

摘要： For the reduction of the rounding error, a first and a second non-integer input value are provided and combined, for example by addition, in non-integer state to obtain a non-integer result value which is rounded and added to a third input value. Thus, the rounding error may be reduced at an interface between two rotations divided into lifting steps or between a first rotation divided into lifting steps and a first lifting step of a subsequent multi-dimensional lifting sequence.

摘要翻译： 为了减少舍入误差，例如以非整数状态提供并组合第一和第二非整数输入值并将其组合，以获得非整数结果值，其被舍入并加到第三输入端 值。 因此，在被分为提升步骤的两个旋转之间或分为提升步骤的第一旋转和随后的多维提升顺序的第一提升步骤之间的界面处可以减少舍入误差。

公开(公告)号：US20050175197A1

公开(公告)日：2005-08-11

申请号：US11099156

申请日：2005-04-05

申请人： Frank Melchior ,  Thomas Roder ,  Michael Beckinger ,  Sandra Brix ,  Thomas Sporer ,  Haymo Kutschbach ,  Berthold Schlenker ,  Carsten Land

发明人： Frank Melchior ,  Thomas Roder ,  Michael Beckinger ,  Sandra Brix ,  Thomas Sporer ,  Haymo Kutschbach ,  Berthold Schlenker ,  Carsten Land

IPC分类号： H04R1/40 ,  H04R3/12 ,  H04R5/02 ,  H04S3/00 ,  H04R5/00

CPC分类号： H04R5/02 ,  H04R1/403 ,  H04R3/12 ,  H04S3/00 ,  H04S2420/13

摘要： An audio reproduction system is divided into a central wave-field synthesis module and a plurality of loudspeaker modules disposed in a distributed way, wherein synthesis signals for the individual loudspeakers as well as corresponding channel information associated to the synthesis signals are calculated in the central wave-field synthesis module. The synthesis signals for a loudspeaker as well as associated channel information will then be transmitted to respective loudspeaker modules via a transmission path, wherein every loudspeaker module obtains the synthesis signals and associated channel information intended for the loudspeaker associated to the loudspeaker module. A distributed audio rendering and digital/analog converting takes place in the loudspeaker module to generate the actually analog loudspeaker signals in a distributed way in spatial proximity to every loudspeaker. The division into a central wave-field synthesis module and the plurality of distributed loudspeaker modules allows that audio reproduction systems that are scalable with regard to the price can be generated in order to offer systems of different size scalable in price particularly for cinema reproduction rooms varying strongly in size.

摘要翻译： 音频再现系统被分为中心波场合成模块和以分布式方式布置的多个扬声器模块，其中针对各个扬声器的合成信号以及与合成信号相关联的对应信道信息在中央波中计算 场合成模块。 然后，用于扬声器的合成信号以及相关联的信道信息将经由传输路径发送到相应的扬声器模块，其中每个扬声器模块获得旨在用于与扬声器模块相关联的扬声器的合成信号和相关信道信息。 分布式音频渲染和数字/模拟转换发生在扬声器模块中，以分布式的方式在每个扬声器的空间附近产生实际的模拟扬声器信号。 分为中央波场合成模块和多个分布式扬声器模块允许可以生成关于价格可扩展的音频再现系统，以便提供价格可变的不同尺寸的系统，特别是对于不同的电影再现室 强大的。