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1. 发明申请

US20070043557A1 METHOD AND DEVICE FOR QUANTIZING AN INFORMATION SIGNAL 有权
标题翻译：用于量化信息信号的方法和装置
公开(公告)号：US20070043557A1
公开(公告)日：2007-02-22
申请号：US11460433
申请日：2006-07-27
申请人： Gerald Schuller , Stefan Wabnik , Jens Hirschfeld , Wolfgang Fiesel
发明人： Gerald Schuller , Stefan Wabnik , Jens Hirschfeld , Wolfgang Fiesel
IPC分类号： G10L19/00
CPC分类号： G10L19/032 , G10L19/26 , G10L19/265
摘要： Quantizing an information signal of a sequence of information values includes frequency-selective filtering the sequence of information values to obtain a sequence of filtered information values and quantizing the filtered information values to obtain a sequence of quantized information values by means of a quantizing step function which maps the filtered information values to the quantized information values and the course of which is steeper below a threshold information value than above the threshold information value.
摘要翻译：量化信息值序列的信息信号包括对信息值序列进行频率选择性滤波以获得滤波信息值序列，并对滤波信息值进行量化，以通过量化步长函数获得量化信息值序列，该量化步长函数将经滤波的信息值映射到量化信息值，并且其过程比阈值信息值之上的阈值信息值更陡。

2. 发明授权

US07464027B2 Method and device for quantizing an information signal 有权
标题翻译：用于量化信息信号的方法和装置
公开(公告)号：US07464027B2
公开(公告)日：2008-12-09
申请号：US11460433
申请日：2006-07-27
申请人： Gerald Schuller , Stefan Wabnik , Jens Hirschfeld , Wolfgang Fiesel
发明人： Gerald Schuller , Stefan Wabnik , Jens Hirschfeld , Wolfgang Fiesel
IPC分类号： G10L19/00
CPC分类号： G10L19/032 , G10L19/26 , G10L19/265
摘要： Quantizing an information signal of a sequence of information values includes frequency-selective filtering the sequence of information values to obtain a sequence of filtered information values and quantizing the filtered information values to obtain a sequence of quantized information values by means of a quantizing step function which maps the filtered information values to the quantized information values and the course of which is steeper below a threshold information value than above the threshold information value.
摘要翻译：量化信息值序列的信息信号包括对信息值序列进行频率选择性滤波以获得滤波信息值序列，并对滤波信息值进行量化，以通过量化步长函数获得量化信息值序列，该量化步长函数将经滤波的信息值映射到量化信息值，并且其过程比阈值信息值之上的阈值信息值更陡。

3. 发明授权

US08682652B2 Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic 有权
标题翻译：具有动态可变翘曲特性的音频编码器，音频解码器和音频处理器
公开(公告)号：US08682652B2
公开(公告)日：2014-03-25
申请号：US12305936
申请日：2007-05-16
申请人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
发明人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
IPC分类号： G10L19/00
CPC分类号： G10L19/22 , G10L19/022
摘要： An audio encoder, an audio decoder or an audio processor includes a filter for generating a filtered audio signal, the filter having a variable warping characteristic, the characteristic being controllable in response to a time-varying control signal, the control signal indicating a small or no warping characteristic or a comparatively high warping characteristic. Furthermore, a controller is connected for providing the time-varying control signal, which depends on the audio signal. The filtered audio signal can be introduced to an encoding processor having different encoding algorithms, one of which is a coding algorithm adapted to a specific signal pattern. Alternatively, the filter is a post-filter receiving a decoded audio signal.
摘要翻译：音频编码器，音频解码器或音频处理器包括用于产生经滤波的音频信号的滤波器，该滤波器具有可变的翘曲特性，该特性可响应于时变控制信号而被控制，该控制信号指示小的或无翘曲特性或较高翘曲特性。此外，连接控制器以提供取决于音频信号的时变控制信号。滤波后的音频信号可以被引入到具有不同编码算法的编码处理器中，其中之一是适用于特定信号模式的编码算法。或者，滤波器是接收经解码的音频信号的后置滤波器。

4. 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。

5. 发明授权

US07873511B2 Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic 有权
标题翻译：具有动态可变翘曲特性的音频编码器，音频解码器和音频处理器
公开(公告)号：US07873511B2
公开(公告)日：2011-01-18
申请号：US11428297
申请日：2006-06-30
申请人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
发明人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
IPC分类号： G10L19/14 , G10L19/00 , G10L19/02
CPC分类号： G10L19/22
摘要： An audio encoder, an audio decoder or an audio processor includes a filter for generating a filtered audio signal, the filter having a variable warping characteristic, the characteristic being controllable in response to a time-varying control signal, the control signal indicating a small or no warping characteristic or a comparatively high warping characteristic. Furthermore, a controller is connected for providing the time-varying control signal, which depends on the audio signal. The filtered audio signal can be introduced to an encoding processor having different encoding algorithms, one of which is a coding algorithm adapted to a specific signal pattern. Alternatively, the filter is a post-filter receiving a decoded audio signal.
摘要翻译：音频编码器，音频解码器或音频处理器包括用于产生经滤波的音频信号的滤波器，该滤波器具有可变的翘曲特性，该特性可响应于时变控制信号而被控制，该控制信号指示小的或无翘曲特性或较高翘曲特性。此外，连接控制器以提供取决于音频信号的时变控制信号。滤波后的音频信号可以被引入到具有不同编码算法的编码处理器中，其中之一是适用于特定信号模式的编码算法。或者，滤波器是接收经解码的音频信号的后置滤波器。

6. 发明申请

US20080004869A1 Audio Encoder, Audio Decoder and Audio Processor Having a Dynamically Variable Warping Characteristic 有权
标题翻译：音频编码器，音频解码器和具有动态变化翘曲特性的音频处理器
公开(公告)号：US20080004869A1
公开(公告)日：2008-01-03
申请号：US11428297
申请日：2006-06-30
申请人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
发明人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
IPC分类号： G10L19/14
CPC分类号： G10L19/22
摘要： An audio encoder, an audio decoder or an audio processor includes a filter for generating a filtered audio signal, the filter having a variable warping characteristic, the characteristic being controllable in response to a time-varying control signal, the control signal indicating a small or no warping characteristic or a comparatively high warping characteristic. Furthermore, a controller is connected for providing the time-varying control signal, which depends on the audio signal. The filtered audio signal can be introduced to an encoding processor having different encoding algorithms, one of which is a coding algorithm adapted to a specific signal pattern. Alternatively, the filter is a post-filter receiving a decoded audio signal.
摘要翻译：音频编码器，音频解码器或音频处理器包括用于产生经滤波的音频信号的滤波器，该滤波器具有可变的翘曲特性，该特性可响应于时变控制信号而被控制，该控制信号指示小的或无翘曲特性或较高翘曲特性。此外，连接控制器以提供取决于音频信号的时变控制信号。滤波后的音频信号可以被引入到具有不同编码算法的编码处理器中，其中之一是适用于特定信号模式的编码算法。或者，滤波器是接收经解码的音频信号的后置滤波器。

7. 发明授权

US09754601B2 Information signal encoding using a forward-adaptive prediction and a backwards-adaptive quantization 有权
公开(公告)号：US09754601B2
公开(公告)日：2017-09-05
申请号：US12300602
申请日：2007-02-28
申请人： Jens Hirschfeld , Gerald Schuller , Manfred Lutzky , Ulrich Kraemer , Stefan Wabnik
发明人： Jens Hirschfeld , Gerald Schuller , Manfred Lutzky , Ulrich Kraemer , Stefan Wabnik
IPC分类号： G10L19/06 , G10L19/032 , G10L19/00 , G10L19/035
CPC分类号： G10L19/06 , G10L19/0017 , G10L19/032 , G10L19/035
摘要： A very coarse quantization exceeding the measure determined by the masking threshold without or only very little quality losses is enabled by quantizing not immediately the prefiltered signal, but a prediction error obtained by forward-adaptive prediction of the prefiltered signal. Due to the forward adaptivity, the quantizing error has no negative effect on the prediction on the decoder side.

8. 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。

9. 发明授权

US07716042B2 Audio coding 有权
标题翻译：音频编码
公开(公告)号：US07716042B2
公开(公告)日：2010-05-11
申请号：US11460423
申请日：2006-07-27
申请人： Gerald Schuller , Stefan Wabnik , Jens Hirschfeld , Manfred Lutzky
发明人： Gerald Schuller , Stefan Wabnik , Jens Hirschfeld , Manfred Lutzky
IPC分类号： G10L19/00
CPC分类号： G10L19/02 , G10L19/0017 , G10L19/26 , G10L19/265
摘要： Coding an audio signal of a sequence of audio values into a coded signal includes determining first and second listening thresholds for first and second blocks of audio values of the sequence of audio values; calculating versions of first second parameterizations of the parameterizable filter such that the transfer function thereof roughly corresponds to the inverse of the magnitude of the first and second listening thresholds, respectively; filtering a predetermined block of audio values of the sequence of audio values with the parameterizable filter using a predetermined parameterization which depends on the version of the second parameterization to obtain a block of filtered audio values corresponding to the predetermined block which is quantized; forming a difference between the versions of the first and second parameterizations; integrating information on, inter alias, the difference into the coded signal.
摘要翻译：将音频值序列的音频信号编码为编码信号包括确定音频值序列的音频值的第一和第二块的第一和第二监听阈值; 计算可参数化滤波器的第一第二参数化的版本，使得其传递函数分别大致对应于第一和第二监听阈值的幅度的倒数; 使用预定参数化来过滤具有可参数化滤波器的音频值序列的预定音频值的块，该预定参数取决于第二参数化的版本，以获得对应于被量化的预定块的滤波音频值块; 形成第一和第二参数化的版本之间的差异; 将信息，别名，差异集成到编码信号中。

10. 发明申请

US20090254783A1 Information Signal Encoding 有权
标题翻译：信息信号编码
公开(公告)号：US20090254783A1
公开(公告)日：2009-10-08
申请号：US12300602
申请日：2007-02-28
申请人： Jens Hirschfeld , Gerald Schuller , Manfred Lutzky , Ulrich Kraemer , Stefan Wabnik
发明人： Jens Hirschfeld , Gerald Schuller , Manfred Lutzky , Ulrich Kraemer , Stefan Wabnik
IPC分类号： G06F11/00 , H04B1/66
CPC分类号： G10L19/06 , G10L19/0017 , G10L19/032 , G10L19/035
摘要： A very coarse quantization exceeding the measure determined by the masking threshold without or only very little quality losses is enabled by quantizing not immediately the prefiltered signal, but a prediction error obtained by forward-adaptive prediction of the prefiltered signal. Due to the forward adaptivity, the quantizing error has no negative effect on the prediction on the decoder side.
摘要翻译：通过量化不是立即预过滤信号，而是通过对预过滤信号进行前向自适应预测而获得的预测误差，能够实现超过由掩蔽阈值确定的度量而不仅仅具有非常少的质量损失的非常粗略的量化。由于正向适应性，量化误差对解码器侧的预测没有负面影响。

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