APPARATUS, METHOD AND COMPUTER PROGRAM FOR MANIPULATING AN AUDIO SIGNAL COMPRISING A TRANSIENT EVENT
    1.
    发明申请
    APPARATUS, METHOD AND COMPUTER PROGRAM FOR MANIPULATING AN AUDIO SIGNAL COMPRISING A TRANSIENT EVENT 有权
    用于处理包含瞬时事件的音频信号的装置,方法和计算机程序

    公开(公告)号:US20120051549A1

    公开(公告)日:2012-03-01

    申请号:US13191780

    申请日:2011-07-27

    IPC分类号: H03G5/16

    摘要: An apparatus for manipulating an audio signal comprising a transient event has a transient signal replacer configured to replace a transient signal portion, comprising the transient event of the audio signal, with a replacement signal portion adapted to signal energy characteristics of one or more transient signal portions of the audio signal, or to signal energy characteristics of the transient signal portion, to obtain a transient-reduced audio signal. The apparatus also has a signal processor configured to process the transient-reduced audio signal to obtain a processed version of the transient-reduced audio signal. The apparatus also has a transient-signal-re-inserter configured to combine the processed version of the transient-reduced audio signal with a transient signal representing, in an original or processed form, a transient content of the transient signal portion.

    摘要翻译: 一种用于操纵包括瞬态事件的音频信号的装置具有瞬态信号替换器,其被配置为将包括音频信号的瞬态事件的瞬态信号部分替换成适于发出一个或多个瞬态信号部分的能量特性的替换信号部分 或者用于发出瞬态信号部分的能量特性,以获得瞬态降低的音频信号。 该装置还具有被配置为处理瞬态降低的音频信号以获得经过瞬态减小的音频信号的处理版本的信号处理器。 该装置还具有瞬态信号重新插入器,其被配置为将经过处理的瞬态降低音频信号的组合与以原始或处理形式表示瞬态信号部分的瞬时内容的瞬态信号组合。

    Apparatus, method and computer program for manipulating an audio signal comprising a transient event
    2.
    发明授权
    Apparatus, method and computer program for manipulating an audio signal comprising a transient event 有权
    用于操纵包括瞬态事件的音频信号的装置,方法和计算机程序

    公开(公告)号:US09230557B2

    公开(公告)日:2016-01-05

    申请号:US13191780

    申请日:2011-07-27

    摘要: An apparatus for manipulating an audio signal comprising a transient event has a transient signal replacer configured to replace a transient signal portion, comprising the transient event of the audio signal, with a replacement signal portion adapted to signal energy characteristics of one or more transient signal portions of the audio signal, or to signal energy characteristics of the transient signal portion, to obtain a transient-reduced audio signal. The apparatus also has a signal processor configured to process the transient-reduced audio signal to obtain a processed version of the transient-reduced audio signal. The apparatus also has a transient-signal-re-inserter configured to combine the processed version of the transient-reduced audio signal with a transient signal representing, in an original or processed form, a transient content of the transient signal portion.

    摘要翻译: 一种用于操纵包括瞬态事件的音频信号的装置具有瞬态信号替换器,其被配置为将包括音频信号的瞬态事件的瞬态信号部分替换成适于发出一个或多个瞬态信号部分的能量特性的替换信号部分 或者用于发出瞬态信号部分的能量特性,以获得瞬态降低的音频信号。 该装置还具有被配置为处理瞬态降低的音频信号以获得经过瞬态减小的音频信号的处理版本的信号处理器。 该装置还具有瞬态信号重新插入器,其被配置为将经过处理的瞬态降低音频信号的组合与以原始或处理形式表示瞬态信号部分的瞬时内容的瞬态信号组合。

    Apparatus and a method for decoding an encoded audio signal
    10.
    发明授权
    Apparatus and a method for decoding an encoded audio signal 有权
    用于解码编码音频信号的装置和方法

    公开(公告)号:US08275626B2

    公开(公告)日:2012-09-25

    申请号:US13004272

    申请日:2011-01-11

    IPC分类号: G10L19/00

    摘要: An apparatus for decoding an encoded audio signal having first and second portions encoded in accordance with first and second encoding algorithms, respectively, BWE parameters for the first and second portions and a coding mode information indicating a first or a second decoding algorithm, includes first and second decoders, a BWE module and a controller. The decoders decode portions in accordance with decoding algorithms for time portions of the encoded signal to obtain decoded signals. The BWE module has a controllable crossover frequency and is configured for performing a bandwidth extension algorithm using the first decoded signal and the BWE parameters for the first portion, and for performing a bandwidth extension algorithm using the second decoded signal and the bandwidth extension parameter for the second portion. The controller controls the crossover frequency for the BWE module in accordance with the coding mode information.

    摘要翻译: 一种用于解码具有根据第一和第二编码算法编码的第一和第二部分的编码音频信号的装置,分别用于第一和第二部分的BWE参数和指示第一或第二解码算法的编码模式信息包括第一和第二编码算法 第二解码器,BWE模块和控制器。 解码器根据编码信号的时间部分的解码算法来解码部分,以获得解码信号。 BWE模块具有可控的交叉频率,并且被配置为使用第一解码信号和第一部分的BWE参数来执行带宽扩展算法,并且用于使用第二解码信号和带宽扩展参数来执行带宽扩展算法 第二部分。 控制器根据编码模式信息控制BWE模块的交叉频率。