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1. 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。

2. 发明申请

US20110200198A1 Low Bitrate Audio Encoding/Decoding Scheme with Common Preprocessing 有权
标题翻译：具有通用预处理的低比特率音频编码/解码方案
公开(公告)号：US20110200198A1
公开(公告)日：2011-08-18
申请号：US13004453
申请日：2011-01-11
申请人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L19/14 , G10L21/00
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
摘要翻译：音频编码器具有通用的预处理级，诸如频域编码分支的基于信息宿的编码分支，诸如LPC域编码分支的基于信息源的编码分支以及用于在这些分支的输入处切换这些分支之间的切换，或这些分支的输出由决策阶段控制。音频解码器具有频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级信号。

3. 发明授权

US08804970B2 Low bitrate audio encoding/decoding scheme with common preprocessing 有权
标题翻译：低比特率音频编码/解码方案，具有通用的预处理功能
公开(公告)号：US08804970B2
公开(公告)日：2014-08-12
申请号：US13004453
申请日：2011-01-11
申请人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L21/00
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
摘要翻译：音频编码器具有通用的预处理级，诸如频域编码分支的基于信息宿的编码分支，诸如LPC域编码分支的基于信息源的编码分支以及用于在这些分支的输入处切换这些分支之间的切换，或这些分支的输出由决策阶段控制。音频解码器具有频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级信号。

4. 发明申请

US20110202337A1 Method and Discriminator for Classifying Different Segments of a Signal 有权
标题翻译：用于分类不同信号段的方法和鉴别器
公开(公告)号：US20110202337A1
公开(公告)日：2011-08-18
申请号：US13004534
申请日：2011-01-11
申请人： Guillaume Fuchs , Stefan Bayer , Jens Hirschfeld , Juergen Herre , Jeremie Lecomte , Frederik Nagel , Nikolaus Rettelbach , Stefan Wabnik , Yoshikazu Yokotani
发明人： Guillaume Fuchs , Stefan Bayer , Jens Hirschfeld , Juergen Herre , Jeremie Lecomte , Frederik Nagel , Nikolaus Rettelbach , Stefan Wabnik , Yoshikazu Yokotani
IPC分类号： G10L15/00
CPC分类号： G10L19/20 , G10L19/22 , G10L25/00 , G10L25/51 , G10L2025/783
摘要： For classifying different segments of a signal which has segments of at least a first type and second type, e.g. audio and speech segments, the signal is short-term classified on the basis of the at least one short-term feature extracted from the signal and a short-term classification result is delivered. The signal is also long-term classified on the basis of the at least one short-term feature and at least one long-term feature extracted from the signal and a long-term classification result is delivered. The short-term classification result and the long-term classification result are combined to provide an output signal indicating whether a segment of the signal is of the first type or of the second type.
摘要翻译：用于分类具有至少第一类型和第二类型的段的信号的不同段，例如，音频和语音段，信号是根据从信号中提取的至少一个短期特征进行短期分类的，并且传送短期分类结果。信号也是基于至少一个短期特征和从该信号提取的至少一个长期特征和长期分类结果进行长期分类的。组合短期分类结果和长期分类结果以提供指示信号的片段是第一类型还是第二类型的输出信号。

5. 发明授权

US08571858B2 Method and discriminator for classifying different segments of a signal 有权
标题翻译：用于对信号的不同段进行分类的方法和鉴别器
公开(公告)号：US08571858B2
公开(公告)日：2013-10-29
申请号：US13004534
申请日：2011-01-11
申请人： Guillaume Fuchs , Stefan Bayer , Jens Hirschfeld , Juergen Herre , Jeremie Lecomte , Frederik Nagel , Nikolaus Rettelbach , Stefan Wabnik , Yoshikazu Yokotani
发明人： Guillaume Fuchs , Stefan Bayer , Jens Hirschfeld , Juergen Herre , Jeremie Lecomte , Frederik Nagel , Nikolaus Rettelbach , Stefan Wabnik , Yoshikazu Yokotani
IPC分类号： G10L15/00
CPC分类号： G10L19/20 , G10L19/22 , G10L25/00 , G10L25/51 , G10L2025/783
摘要： For classifying different segments of a signal which has segments of at least a first type and second type, e.g. audio and speech segments, the signal is short-term classified on the basis of the at least one short-term feature extracted from the signal and a short-term classification result is delivered. The signal is also long-term classified on the basis of the at least one short-term feature and at least one long-term feature extracted from the signal and a long-term classification result is delivered. The short-term classification result and the long-term classification result are combined to provide an output signal indicating whether a segment of the signal is of the first type or of the second type.
摘要翻译：用于分类具有至少第一类型和第二类型的段的信号的不同段，例如，音频和语音段，信号是根据从信号中提取的至少一个短期特征进行短期分类的，并且传送短期分类结果。信号也是基于至少一个短期特征和从该信号提取的至少一个长期特征和长期分类结果进行长期分类的。组合短期分类结果和长期分类结果以提供指示信号的片段是第一类型还是第二类型的输出信号。

6. 发明授权

US08532999B2 Apparatus and method for generating a multi-channel synthesizer control signal, multi-channel synthesizer, method of generating an output signal from an input signal and machine-readable storage medium 有权
标题翻译：用于产生多声道合成器控制信号的装置和方法，多声道合成器，从输入信号产生输出信号的方法和机器可读存储介质
公开(公告)号：US08532999B2
公开(公告)日：2013-09-10
申请号：US13158863
申请日：2011-06-13
申请人： Matthias Neusinger , Juergen Herre , Sascha Disch , Heiko Purnhagen , Kristofer Kjoerling , Jonas Engdegard , Jeroen Breebaart , Erik Schuijers , Werner Oomen
发明人： Matthias Neusinger , Juergen Herre , Sascha Disch , Heiko Purnhagen , Kristofer Kjoerling , Jonas Engdegard , Jeroen Breebaart , Erik Schuijers , Werner Oomen
IPC分类号： G10L19/14 , G10L21/02 , G06F15/00 , G10L11/00 , G10L11/02
CPC分类号： G10L19/26 , G10L19/008 , G10L2019/0012 , H04S3/008
摘要： An apparatus and a method for generating a multi-channel synthesizer control signal, a multi-channel synthesizer, a method of generating an output signal from an input signal and a machine-readable storage medium are provided. On an encoder-side, a multi-channel input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel synthesis for smoothing quantized transmitted parameters or values derived from the quantized transmitted parameters for providing an improved subjective audio quality in particular for slowly moving point sources and rapidly moving point sources having tonal material such as fast moving sinusoids.
摘要翻译：提供一种用于产生多声道合成器控制信号的装置和方法，多声道合成器，从输入信号产生输出信号的方法和机器可读存储介质。在编码器侧，分析多通道输入信号以获得平滑控制信息，该平滑控制信息将被解码器侧多信道合成用于平滑经量化的传输参数或从量化的传输参数导出的值，以提供改善主观音频质量，特别是对于缓慢移动的点源和具有诸如快速移动的正弦波的音调材料的快速移动的点源。

7. 发明授权

US08116459B2 Enhanced method for signal shaping in multi-channel audio reconstruction 有权
标题翻译：多声道音频重构中信号整形的增强方法
公开(公告)号：US08116459B2
公开(公告)日：2012-02-14
申请号：US11384000
申请日：2006-05-18
申请人： Sascha Disch , Karsten Linzmeier , Juergen Herre , Harald Popp
发明人： Sascha Disch , Karsten Linzmeier , Juergen Herre , Harald Popp
IPC分类号： H04R5/00
CPC分类号： H04S3/002 , G10L19/008 , G10L19/26 , H04R2217/03 , H04S3/02 , H04S2420/03
摘要： The present invention is based on the finding that a reconstructed output channel, reconstructed with a multi-channel reconstructor using at least one downmix channel derived by downmixing a plurality of original channels and using a parameter representation including additional information on a temporal fine structure of an original channel can be reconstructed efficiently with high quality, when a generator for generating a direct signal component and a diffuse signal component based on the downmix channel is used. The quality can be essentially enhanced, if only the direct signal component is modified such that the temporal fine structure of the reconstructed output channel is fitting a desired temporal fine structure, indicated by the additional information on the temporal fine structure transmitted.
摘要翻译：本发明基于以下发现：重建的输出通道，其使用通过将多个原始通道进行下混合而导出的至少一个下混频道重建的多通道重构器，并且使用参数表示，该参数表示包括关于时间精细结构的附加信息当使用用于产生基于下混通道的直接信号分量和扩散信号分量的发生器时，可以高质量地重构原始信道。如果仅修改直接信号分量，使得重建的输出信道的时间精细结构适合于由发送的时间精细结构的附加信息所指示的期望的时间精细结构，则质量可以基本上增强。

8. 发明授权

US07974713B2 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：US07974713B2
公开(公告)日：2011-07-05
申请号：US11363985
申请日：2006-02-27
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： G06F17/00 , H03M7/00 , H04R5/00 , G10L19/00
CPC分类号： G10L19/008 , H04S3/008
摘要： A selected channel of a multi-channel signal represented by frames composed from sampling values having a high time resolution is provided that 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 with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to a 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：提供了由具有高时间分辨率的采样值组成的帧表示的多通道信号的选定通道，当表示所选通道的中间分辨率表示的波形的波形参数表示为派生。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原始信道的信号包络的信道。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。

9. 发明申请

US20060004583A1 Multi-channel synthesizer and method for generating a multi-channel output signal 有权
标题翻译：用于产生多通道输出信号的多通道合成器和方法
公开(公告)号：US20060004583A1
公开(公告)日：2006-01-05
申请号：US10883538
申请日：2004-06-30
申请人： Juergen Herre , Sascha Disch , Johannes Hilpert , Christian Ertel , Andreas Hoelzer , Claus-Christian Spenger
发明人： Juergen Herre , Sascha Disch , Johannes Hilpert , Christian Ertel , Andreas Hoelzer , Claus-Christian Spenger
IPC分类号： G10L19/14
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03
摘要： A multi-channel synthesizer includes a post processor for determining post processed reconstruction parameters or quantities derived from the reconstruction parameter for an actual time portion of the input signal so that the post processed reconstruction parameter or the post processed quantity is different from the corresponding quantized and inversely quantized reconstruction parameter in that the value of the post processed reconstruction parameter or the derived quantity is not bound by the quantization step size. A multi-channel reconstructor uses the post-processed reconstruction parameter for reconstructing the multi-channel output signal. By post processing reconstruction parameters in connection with multi-channel encoding/decoding allows a low data rate on the one hand and a high quality on the other hand, since strong changes in the reconstructed multi-channel output signal because of a large quantization step size for the reconstruction parameter, which is preferable because of low bit rate requirements, are reduced.
摘要翻译：多通道合成器包括用于确定后处理的重构参数的后处理器或者对于输入信号的实际时间部分从重建参数导出的量，使得后处理的重构参数或后处理量与相应的量化和反量化重建参数，因为后处理重构参数或导出量的值不受量化步长的约束。多通道重建器使用后处理重构参数来重建多通道输出信号。通过后处理，与多信道编码/解码相关的重构参数一方面允许低数据速率和高质量，因为由于大量化步长而导致的重构多通道输出信号的强烈变化对于由于低比特率要求而优选的重构参数被减少。

10. 发明授权

US07676336B2 Watermark embedding 有权
标题翻译：水印嵌入
公开(公告)号：US07676336B2
公开(公告)日：2010-03-09
申请号：US11554492
申请日：2006-10-30
申请人： Juergen Herre , Ralph Kulessa , Sascha Disch , Karsten Linzmeier , Christian Neubauer , Frank Siebenhaar
发明人： Juergen Herre , Ralph Kulessa , Sascha Disch , Karsten Linzmeier , Christian Neubauer , Frank Siebenhaar
IPC分类号： G01R23/16 , G06F17/14
CPC分类号： H04H20/31
摘要： According to an inventive scheme for introducing a watermark into an information signal, the information signal is at first transferred from a time representation to a spectral/modulation spectral representation). The information signal is then manipulated in the spectral/modulation spectral representation in dependence on the watermark to be introduced to obtain a modified spectral/modulation spectral representation, and subsequently an information signal provided with a watermark is formed based on the modified spectral/modulation spectral representation. An advantage is that, due to the fact that the watermark is embedded and/or derived in the spectral/modulation spectral representation or range, traditional correlation attacks as are used in watermark methods based on a spread-band modulation cannot succeed easily.
摘要翻译：根据用于将水印引入信息信号的发明方案，信息信号首先从时间表示传输到频谱/调制频谱表示）。然后根据要引入的水印在频谱/调制频谱表示中操作信息信号以获得修改的频谱/调制频谱表示，随后基于修改的频谱/调制频谱形成提供有水印的信息信号表示。优点在于，由于在频谱/调制频谱表示或范围内嵌入和/或导出水印的事实，所以在基于扩频调制的水印方法中使用的传统的相关攻击不能容易地成功。

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