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    AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AN AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING AN ITERATIVE INTERVAL SIZE REDUCTION
    32.
    发明申请
    AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AN AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING AN ITERATIVE INTERVAL SIZE REDUCTION 有权
    音频编码器，音频解码器，用于编码音频信息的方法，用于解码音频信息的方法和使用迭代间隔尺寸减小的计算机程序

    公开(公告)号：US20120330670A1

    公开(公告)日：2012-12-27

    申请号：US13450713

    申请日：2012-04-19

    申请人： Guillaume Fuchs ,  Vignesh Subbaraman ,  Nikolaus Rettelbach ,  Markus Multrus ,  Marc Gayer ,  Patrick Warmbold ,  Christian Griebel ,  Oliver Weiss

    发明人： Guillaume Fuchs ,  Vignesh Subbaraman ,  Nikolaus Rettelbach ,  Markus Multrus ,  Marc Gayer ,  Patrick Warmbold ,  Christian Griebel ,  Oliver Weiss

    IPC分类号： G10L19/00

    CPC分类号： G10L19/008 ,  G10L19/0017 ,  G10L19/0208

    摘要： An audio decoder has an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically-encoded representation and a frequency-domain-to-time-domain converter for providing a time-domain audio representation. The arithmetic decoder selects a mapping rule describing a mapping of a code value onto a symbol code in dependence on a numeric current context value describing a current context state. The arithmetic decoder determines the numeric current context value in dependence on a plurality of previously decoded spectral values. The arithmetic decoder evaluates at least one table using an iterative interval size reduction to determine whether the numeric current context value is identical to a table context value described by an entry of the table or lies within an interval described by entries of the table, and derives a mapping rule index value describing a selected mapping table.An audio encoder also uses an iterative interval table size reduction.

    摘要翻译： 音频解码器具有算术解码器，用于基于算术编码的表示提供解码的频谱值，以及用于提供时域音频表示的频域 - 时域转换器。 算术解码器根据描述当前上下文状态的数字当前上下文值选择描述代码值到符号代码上的映射规则的映射规则。 算术解码器根据多个先前解码的频谱值来确定数字电流上下文值。 算术解码器使用迭代间隔大小缩小来评估至少一个表，以确定数字当前上下文值是否与由表的条目描述的表上下文值相同或位于由表的条目描述的间隔内，并且导出 描述所选择的映射表的映射规则索引值。 音频编码器还使用迭代间隔表尺寸缩小。

    AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AN AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING A DETECTION OF A GROUP OF PREVIOUSLY-DECODED SPECTRAL VALUES
    34.
    发明申请
    AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AN AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING A DETECTION OF A GROUP OF PREVIOUSLY-DECODED SPECTRAL VALUES 有权
    音频编码器，音频解码器，用于编码音频信息的方法，用于解码音频信息的方法和使用检测以前解码的光谱值的计算机程序

    公开(公告)号：US20120265540A1

    公开(公告)日：2012-10-18

    申请号：US13450014

    申请日：2012-04-18

    申请人： Guillaume Fuchs ,  Vignesh Subbaraman ,  Nikolaus Rettelbach ,  Markus Multrus ,  Marc Gayer ,  Patrick Warmbold ,  Christian Griebel ,  Oliver Weiss

    发明人： Guillaume Fuchs ,  Vignesh Subbaraman ,  Nikolaus Rettelbach ,  Markus Multrus ,  Marc Gayer ,  Patrick Warmbold ,  Christian Griebel ,  Oliver Weiss

    IPC分类号： G10L19/00

    CPC分类号： G10L19/008 ,  G10L19/0017 ,  G10L19/0208

    摘要： An audio decoder for providing a decoded audio information includes a arithmetic decoder for providing a plurality of decoded spectral values on the basis of an arithmetically-encoded representation of the spectral values and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using the decoded spectral values. The arithmetic decoder is configured to select a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state. The arithmetic decoder is configured to determine or modify the current context state in dependence on a plurality of previously-decoded spectral values. The arithmetic decoder is configured to detect a group of a plurality of previously-decoded spectral values, which fulfill, individually or taken together, a predetermined condition regarding their magnitudes, and to determine the current context state in dependence on a result of the detection.An audio encoder uses similar principles.

    摘要翻译： 用于提供经解码的音频信息的音频解码器包括算术解码器，用于根据频谱值的算术编码表示提供多个解码频谱值，以及频域 - 时域转换器，用于提供时间 - 使用解码的谱值的域音频表示。 算术解码器被配置为根据上下文状态选择描述代码值到符号代码上的映射规则的映射规则。 算术解码器被配置为根据多个先前解码的频谱值来确定或修改当前上下文状态。 算术解码器被配置为检测多个先前解码的频谱值的组，它们单独地或一起实现关于其幅度的预定条件，并且根据检测结果来确定当前上下文状态。 音频编码器使用类似的原理。

    Device and Method for Manipulating an Audio Signal Having a Transient Event
    35.
    发明申请
    Device and Method for Manipulating an Audio Signal Having a Transient Event 有权
    用于操纵具有瞬态事件的音频信号的装置和方法

    公开(公告)号：US20110112670A1

    公开(公告)日：2011-05-12

    申请号：US12921550

    申请日：2009-02-17

    申请人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

    发明人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

    IPC分类号： G06F17/00

    CPC分类号： G10L21/04 ,  G10L19/025

    摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

    摘要翻译： 用于操纵具有瞬态事件的音频信号的信号操纵器可以具有瞬态去除器，信号处理器和信号插入器，用于在瞬态事件被去除的信号位置处将处理后的音频信号中的时间部分插入， 去除器，使得被操纵的音频信号具有不受处理影响的瞬态事件，由此维持瞬态事件的垂直相干性而不是在信号处理器中执行的任何处理，这将破坏瞬态的垂直相干性。

    Scalable encoder and decoder for scaled stream
    36.
    发明授权
    Scalable encoder and decoder for scaled stream 有权
    可缩放编码器和解码器，用于缩放流

    公开(公告)号：US06980143B2

    公开(公告)日：2005-12-27

    申请号：US10500942

    申请日：2002-12-11

    申请人： Karsten Linzmeier ,  Nikolaus Rettelbach ,  Eric Allamanche ,  Bernhard Grill

    发明人： Karsten Linzmeier ,  Nikolaus Rettelbach ,  Eric Allamanche ,  Bernhard Grill

    IPC分类号： G10L19/02 ,  H04B1/66 ,  H03M3/00

    CPC分类号： G10L19/02 ,  H04B1/66

    摘要： A scalable encoder having a first encoder, a decoder and a second encoder includes, above that, a phase distorter to reduce a non-linear frequency-dependent phase distortion introduced by the first encoder or by the decoder, which results in an increased difference signal of a comparator. Thus, a difference signal with less energy is obtained that the second encoder can encode with less bits, that is with a higher bit efficiency.

    摘要翻译： 具有第一编码器，解码器和第二编码器的可缩放编码器包括以下相位变形器，用于减少由第一编码器或由解码器引入的非线性频率相关相位失真，其导致增加的差信号 的比较器。 因此，获得具有较少能量的差信号，使得第二编码器可以以较少位编码，即具有更高的比特效率。

    Device and method for manipulating an audio signal having a transient event
    37.
    发明授权
    Device and method for manipulating an audio signal having a transient event 有权
    用于操纵具有瞬态事件的音频信号的装置和方法

    公开(公告)号：US09236062B2

    公开(公告)日：2016-01-12

    申请号：US13465946

    申请日：2012-05-07

    申请人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

    发明人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

    IPC分类号： G06F17/00 ,  G10L21/04 ,  G10L19/025

    CPC分类号： G10L21/04 ,  G10L19/025

    摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

    摘要翻译： 用于操纵具有瞬态事件的音频信号的信号操纵器可以具有瞬态去除器，信号处理器和信号插入器，用于在瞬态事件被去除的信号位置处将处理后的音频信号中的时间部分插入， 去除器，使得被操纵的音频信号具有不受处理影响的瞬态事件，由此维持瞬态事件的垂直相干性而不是在信号处理器中执行的任何处理，这将破坏瞬态的垂直相干性。