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公开(公告)号：US07386446B2
公开(公告)日：2008-06-10
申请号：US11462140
申请日：2006-08-03
CPC分类号： G10L19/04 , G10L19/025 , G10L19/24 , G10L2019/0014
摘要： If an adaptive prediction algorithm controllable by a speed coefficient is started from to operate with a first adaption speed and a first adaption precision and an accompanying first prediction precision in the case that the speed coefficient has a first value and to operate with a second, compared to the first one, lower adaption speed and a second, but compared to the first one, higher precision in the case that the speed parameter has a second value, the adaption durations occurring after the reset times where the prediction errors are at first increased due to the, not yet, adapted prediction coefficients may be decreased by at first setting the speed parameter to the first value and, after a while, to a second value. After the speed parameter has again been set to the second value after a predetermined duration after the reset times, the prediction errors and thus the residuals to be transmitted are more optimized or smaller than would be possible with the first speed parameter value.
摘要翻译： 如果在速度系数具有第一值的情况下开始从速度系数控制的自适应预测算法以第一适应速度和第一适应精度以及伴随的第一预测精度进行操作，则比较 对于第一个，较低的适应速度和一秒，但是与第一个相比，在速度参数具有第二值的情况下更高的精度，在预测误差首先增加的复位时间之后出现的适应持续时间最初增加 通过首先将速度参数设定为第一值，并且在一段时间之后，还可以减小适应预测系数，而不是适应预测系数。 在复位时间之后的预定持续时间之后再次将速度参数设置为第二值之后，预测误差以及因此将被发送的残差比第一速度参数值更可能优化或更小。
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公开(公告)号：US09754601B2
公开(公告)日：2017-09-05
申请号：US12300602
申请日：2007-02-28
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.
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公开(公告)号：US20090254783A1
公开(公告)日：2009-10-08
申请号：US12300602
申请日：2007-02-28
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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公开(公告)号：US20070016409A1
公开(公告)日：2007-01-18
申请号：US11462140
申请日：2006-08-03
IPC分类号： G10L19/00
CPC分类号： G10L19/04 , G10L19/025 , G10L19/24 , G10L2019/0014
摘要： If an adaptive prediction algorithm controllable by a speed coefficient is started from to operate with a first adaption speed and a first adaption precision and an accompanying first prediction precision in the case that the speed coefficient has a first value and to operate with a second, compared to the first one, lower adaption speed and a second, but compared to the first one, higher precision in the case that the speed parameter has a second value, the adaption durations occurring after the reset times where the prediction errors are at first increased due to the, not yet, adapted prediction coefficients may be decreased by at first setting the speed parameter to the first value and, after a while, to a second value. After the speed parameter has again been set to the second value after a predetermined duration after the reset times, the prediction errors and thus the residuals to be transmitted are more optimized or smaller than would be possible with the first speed parameter value.
摘要翻译： 如果在速度系数具有第一值的情况下开始从速度系数控制的自适应预测算法以第一适应速度和第一适应精度以及伴随的第一预测精度进行操作，则比较 对于第一个，较低的适应速度和一秒，但是与第一个相比，在速度参数具有第二值的情况下更高的精度，在预测误差首先增加的复位时间之后出现的适应持续时间最初增加 通过首先将速度参数设定为第一值，并且在一段时间之后，还可以减小适应预测系数，而不是适应预测系数。 在复位时间之后的预定持续时间之后再次将速度参数设置为第二值之后，预测误差以及因此将被发送的残差比第一速度参数值更可能优化或更小。
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公开(公告)号：US07716042B2
公开(公告)日：2010-05-11
申请号：US11460423
申请日：2006-07-27
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。
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6.发明授权Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic 有权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。
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7.发明申请公开(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
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。
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8.发明授权Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic 有权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
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。
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9.发明申请Audio Encoder, Audio Decoder and Audio Processor Having a Dynamically Variable Warping Characteristic 有权音频编码器，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。
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10.发明申请AUDIO ENCODER, AUDIO DECODER AND AUDIO PROCESSOR HAVING A DYNAMICALLY VARIABLE WARPING CHARACTERISTIC 有权音频编码器，音频解码器和具有动态变化特性的音频处理器公开(公告)号：US20100241433A1
公开(公告)日：2010-09-23
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 (12) 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 (16), the control signal indicating a small or no warping characteristic or a comparatively high warping characteristic. Furthermore, a controller (18) 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 (22) 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（12），该滤波器具有可变翘曲特性，该特性可响应于时变控制信号（16）而被控制， 指示变形特性小或不翘曲特性的控制信号。 此外，控制器（18）被连接用于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具有不同编码算法的编码处理器（22），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。
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