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    Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
    1.
    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。

    Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
    3.
    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

    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。

    Audio Encoder, Audio Decoder and Audio Processor Having a Dynamically Variable Warping Characteristic
    4.
    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。

    AUDIO ENCODER, AUDIO DECODER AND AUDIO PROCESSOR HAVING A DYNAMICALLY VARIABLE WARPING CHARACTERISTIC
    5.
    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。

    Noise Filler, Noise Filling Parameter Calculator Encoded Audio Signal Representation, Methods and Computer Program
    10.
    发明申请
    Noise Filler, Noise Filling Parameter Calculator Encoded Audio Signal Representation, Methods and Computer Program 有权
    噪声填充，噪声填充参数计算器编码音频信号表示，方法和计算机程序

    公开(公告)号：US20110173012A1

    公开(公告)日：2011-07-14

    申请号：US13004493

    申请日：2011-01-11

    申请人： Nikolaus Rettelbach ,  Bernhard Grill ,  Guillaume Fuchs ,  Stefan Geyersberger ,  Markus Multrus ,  Harald Popp ,  Juergen Herre ,  Stefan Wabnik ,  Gerald Schuller ,  Jens Hirschfeld

    发明人： Nikolaus Rettelbach ,  Bernhard Grill ,  Guillaume Fuchs ,  Stefan Geyersberger ,  Markus Multrus ,  Harald Popp ,  Juergen Herre ,  Stefan Wabnik ,  Gerald Schuller ,  Jens Hirschfeld

    IPC分类号： G10L19/00

    CPC分类号： G10L19/035 ,  G10L19/008 ,  G10L19/02 ,  G10L19/0204 ,  G10L19/028 ,  G10L19/032 ,  G10L25/18

    摘要： A noise filler for providing a noise-filled spectral representation of an audio signal on the basis of an input spectral representation of the audio signal has a spectral region identifier configured to identify spectral regions of the input spectral representation spaced from non-zero spectral regions of the input spectral representation by at least one intermediate spectral region, to obtain identified spectral regions, and a noise inserter configured to selectively introduce noise into the identified spectral regions to obtain the noise-filled spectral representation of the audio signal. A noise filling parameter calculator for providing a noise filling parameter on the basis of a quantized spectral representation of an audio signal has a spectral region identifier, as mentioned above, and a noise value calculator configured to selectively consider quantization errors of the identified spectral regions for a calculation of the noise filling parameter. Accordingly, an encoded audio signal representation representing the audio signal can be obtained.

    摘要翻译： 用于基于音频信号的输入频谱表示来提供音频信号的噪声填充频谱表示的噪声填充器具有频谱区域标识符，其被配置为识别从非零频谱区域间隔开的输入频谱表示的频谱区域 通过至少一个中间光谱区域的输入光谱表示，以获得所识别的光谱区域，以及噪声插入器，被配置为选择性地将噪声引入所识别的光谱区域中，以获得音频信号的噪声填充的频谱表示。 用于根据音频信号的量化频谱表示提供噪声填充参数的噪声填充参数计算器具有如上所述的频谱区域标识符，以及噪声值计算器，被配置为选择性地考虑所识别的频谱区域的量化误差 噪声填充参数的计算。 因此，可以获得表示音频信号的编码音频信号表示。