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1. 发明授权

US07024259B1 System and method for evaluating the quality of multi-channel audio signals 有权
标题翻译：用于评估多声道音频信号质量的系统和方法
公开(公告)号：US07024259B1
公开(公告)日：2006-04-04
申请号：US09889697
申请日：1999-12-15
申请人： Thomas Sporer , Roland Bitto , Karlheinz Brandenburg
发明人： Thomas Sporer , Roland Bitto , Karlheinz Brandenburg
IPC分类号： G06F17/00 , H04R5/02
CPC分类号： H04S7/30 , H04S2420/01
摘要： A system for evaluating the quality of an audio test signal derived from an audio reference signal by coding and decoding, said audio test signal and said audio reference signal each comprising a plurality of channels, comprises a unit for converting the audio reference signal into a first audio reference sum signal at a first reference point and into a second audio reference sum signal at a second reference point and for converting the audio test signal into a first audio test sum signal at the first reference point and into a second audio test sum signal at the second reference point, the audio reference sum signals and the audio test sum signals at the first and second reference points being a superposition of the respective channels, which can be emitted by a plurality of loudspeakers, weighted with a respective transfer function between the respective loudspeaker and the reference point in question, and a unit for evaluating the quality of the audio test sum signals while taking into consideration the audio reference sum signals so as to provide an indication of the quality of the audio test signal. The system according to the present invention permits real rooms and an arbitrary number of channels of the audio test signal to be taken into account so as to execute a listening-adapted evaluation of the quality of a specific coding/decoding method.
摘要翻译：一种用于评估通过编码和解码从音频参考信号导出的音频测试信号的质量的系统，所述音频测试信号和每个包括多个通道的所述音频参考信号包括用于将音频参考信号转换成第一在第一参考点处的音频参考和信号和在第二参考点处的第二音频参考和信号，并且用于将音频测试信号转换成第一参考点处的第一音频测试和信号并转换成第二音频测试和信号第二参考点，第一参考点和第二参考点处的音频参考和信号和音频测试和信号是可由多个扬声器发射的相应通道的叠加，其由相应的传递函数加权扬声器和参考点，以及用于评估音频测试和信号质量的单元以考虑音频参考和信号，以便提供音频测试信号的质量的指示。根据本发明的系统允许考虑音频测试信号的实际房间和任意数量的信道，以便执行对特定编码/解码方法的质量的倾听适应评估。

2. 发明授权

US06975254B1 Methods and devices for coding or decoding an audio signal or bit stream 有权
标题翻译：用于对音频信号或位流进行编码或解码的方法和装置
公开(公告)号：US06975254B1
公开(公告)日：2005-12-13
申请号：US09869401
申请日：1998-12-28
申请人： Ralph Sperschneider , Martin Dietz , Andreas Ehret , Karlheinz Brandenburg , Heinz Gerhaeuser , Ali Nowbakht-Irani , Pierre Lauber , Roland Bitto
发明人： Ralph Sperschneider , Martin Dietz , Andreas Ehret , Karlheinz Brandenburg , Heinz Gerhaeuser , Ali Nowbakht-Irani , Pierre Lauber , Roland Bitto
IPC分类号： G10L19/02 , G10L19/032 , H03M7/00 , H03M7/30 , H03M7/40 , H03M13/35 , H04B1/66 , H04H20/00
CPC分类号： G10L19/032 , G10L19/0212 , H03M7/40 , H03M13/35 , H04B1/662
摘要： In a method for coding an audio signal to obtain a coded bit stream, discrete-time samples of the audio signal are transformed into the frequency domain to obtain spectral values. The spectral values are coded with a code table having a limited number of code words of different lengths to obtain spectral values coded by code words, the length of a code word assigned to a spectral value being that much shorter the higher the probability of occurrence of the spectral value is. A raster is then specified for the coded bit stream, the raster having equidistant raster points and the distance between the raster points depending on the code table(s) used. In order to obtain error-tolerant Huffman coding, priority code words, which represent particular spectral values which are psychoacoustically more important than other spectral values, are so arranged in the raster that the start of each priority code word coincides with a raster point.
摘要翻译：在用于编码音频信号以获得编码比特流的方法中，音频信号的离散时间采样被变换到频域以获得频谱值。频谱值用具有不同长度的有限数量的码字的码表编码，以获得由码字编码的频谱值，分配给频谱值的码字的长度远短于发生概率的频率值光谱值为。然后为编码比特流指定光栅，光栅具有等距的光栅点，并且根据所使用的代码表，光栅点之间的距离。为了获得容错霍夫曼编码，代表在心理学上比其他频谱值更重要的特定频谱值的优先码字被布置在光栅中，每个优先码字的开始与光栅点重合。

3. 发明授权

US07548630B2 Integrated loudspeaker system 有权
标题翻译：集成扬声器系统
公开(公告)号：US07548630B2
公开(公告)日：2009-06-16
申请号：US10548667
申请日：2004-03-11
申请人： Berthold Schlenker , Thomas Sporer , Karlheinz Brandenburg
发明人： Berthold Schlenker , Thomas Sporer , Karlheinz Brandenburg
IPC分类号： H04R1/02 , H04R9/06
CPC分类号： H04R1/025 , H04R1/403 , H04R2201/021
摘要： A loudspeaker system including a plurality of sonic converters fixed in or to the rear of sound passage openings of a carrier plate is disclosed. The carrier plate is configured in the form of a wall plate for interior spaces or outside facades of buildings and the sonic converters are integrated into the carrier plate. The loudspeaker system or loudspeaker wall plate, respectively, permit the realization of an optimum acoustic irradiation of a space without aesthetically annoying loudspeaker boxes.
摘要翻译：公开了一种扬声器系统，其包括固定在载板的声音通道开口中或后方的多个声转换器。承载板被构造成用于建筑物的内部空间或外部正面的壁板的形式，并且声音转换器被集成到承载板中。扬声器系统或扬声器墙板分别允许实现空间的最佳声辐射，而没有美观的扬声器盒。

4. 发明授权

US07512539B2 Method and device for processing time-discrete audio sampled values 有权
标题翻译：用于处理时间离散音频采样值的方法和装置
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。

5. 发明授权

US06750789B2 Device and method for determining a coding block raster of a decoded signal 有权
标题翻译：用于确定解码信号的编码块光栅的装置和方法
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。

6. 发明授权

US07275036B2 Apparatus and method for coding a time-discrete audio signal to obtain coded audio data and for decoding coded audio data 有权
标题翻译：用于编码时分离音频信号以获得编码音频数据和解码编码音频数据的装置和方法
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。

7. 发明申请

US20060147074A1 Integrated loudspeaker system 有权
公开(公告)号：US20060147074A1
公开(公告)日：2006-07-06
申请号：US10548667
申请日：2004-03-11
申请人： Berthold Schlenker , Thomas Sporer , Karlheinz Brandenburg
发明人： Berthold Schlenker , Thomas Sporer , Karlheinz Brandenburg
IPC分类号： H04R1/02 , H04R9/06
CPC分类号： H04R1/025 , H04R1/403 , H04R2201/021
摘要： A loudspeaker system including a plurality of sonic converters fixed in or to the rear of sound passage openings of a carrier plate is disclosed. The carrier plate is configured in the form of a wall plate for interior spaces or outside facades of buildings and the sonic converters are integrated into the carrier plate. The loudspeaker system or loudspeaker wall plate, respectively, permit the realization of an optimum acoustic irradiation of a space without aesthetically annoying loudspeaker boxes.

8. 发明授权

US07343287B2 Method and apparatus for scalable encoding and method and apparatus for scalable decoding 有权
标题翻译：用于可缩放编码的方法和装置以及用于可扩展解码的方法和装置
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。

9. 发明申请

US20050114126A1 Apparatus and method for coding a time-discrete audio signal and apparatus and method for decoding coded audio data 有权
标题翻译：用于编码时分离音频信号的装置和方法，以及用于对编码音频数据进行解码的装置和方法
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。

10. 发明授权

US07035742B2 Apparatus and method for characterizing an information signal 有权
标题翻译：用于表征信息信号的装置和方法
公开(公告)号：US07035742B2
公开(公告)日：2006-04-25
申请号：US10950309
申请日：2004-09-23
申请人： Frank Klefenz , Karlheinz Brandenburg
发明人： Frank Klefenz , Karlheinz Brandenburg
IPC分类号： G06F19/00
CPC分类号： G10H3/125 , G10H2240/135 , G10L15/02 , G10L15/10
摘要： For characterizing an information signal having an amplitude-time waveform with local extreme values, at first the local extreme values of the information signal are determined, wherein a local extreme value is defined by a time instant and an amplitude. Furthermore, area information of valleys or mountains of the information signal in case of a one-dimensional amplitude of the information signal or volume information in case of a two-dimensional amplitude of the information signal of valleys or mountains is ascertained. A valley or mountain is defined by a temporal section of the information signal, wherein the section of the information signal extends from the time instant of a local extreme value to a temporarily adjacent value of the information signal having the same amplitude as the local extreme value. Area or volume information of several mountains or valleys is characteristic for the information signal and permits further characterization of the information signal, build-up of an information signal database, or identification of an information signal on the basis of an existing information signal database. Area or volume information is on the one hand characteristic for the information signal and on the other hand, due to its integral nature, robust against information signal changes in form of overlays or distortions.
摘要翻译：为了表征具有局部极值的幅度 - 时间波形的信息信号，首先确定信息信号的局部极值，其中局部极值由时刻和幅度定义。此外，确定在谷或山信息信号的二维幅度的情况下，在信息信号的一维幅度或体积信息的情况下信息信号的谷或山的区域信息。谷或山由信息信号的时间段定义，其中信息信号的部分从本地极值的时刻延伸到具有与局部极值相同幅度的信息信号的临时相邻值。几个山脉或山谷的区域或体积信息是信息信号的特征，并且允许信息信号的进一步表征，信息信号数据库的建立或基于现有信息信号数据库的信息信号的识别。区域或体积信息一方面是信息信号的特征，另一方面，由于其整体性质，对叠加或变形形式的信息信号变化是鲁棒的。

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