Method and apparatus for decoding an audio signal
    1.
    发明公开
    Method and apparatus for decoding an audio signal 审中-公开
    Verfahren und Vorrichtung zur Dekodierung von Audiosignalen

    公开(公告)号:EP1956588A1

    公开(公告)日:2008-08-13

    申请号:EP08101281.7

    申请日:2008-02-05

    IPC分类号: G10L19/14 H04S7/00 H03G5/02

    摘要: A method of implementing an equalizer in an audio signal decoder and an apparatus therefor are provided. According to the method and apparatus, a signal output from an audio signal decoder is not processed by an equalizer, but the values of frequency components are adjusted according to a user's input before subband sample data is transformed into a frequency domain signal in an audio signal decoder, thereby implementing an equalizer in a codec. In this way, the complexity of implementing an apparatus for reproducing an audio signal can be reduced and delay of an equalizer can be reduced.

    摘要翻译: 提供了一种在音频信号解码器及其装置中实现均衡器的方法。 根据该方法和装置,从音频信号解码器输出的信号不由均衡器处理,但是在将子带采样数据变换为音频信号中的频域信号之前,根据用户输入调整频率分量的值 解码器,从而在编解码器中实现均衡器。 以这种方式,可以减少实现用于再现音频信号的装置的复杂性,并且可以减少均衡器的延迟。

    Method and apparatus for decoding parametric-encoded audio signal
    2.
    发明公开
    Method and apparatus for decoding parametric-encoded audio signal 审中-公开
    Verfahren und Vorrichtung zur Dekodierung parameterkodierter Audiosignale

    公开(公告)号:EP1956587A2

    公开(公告)日:2008-08-13

    申请号:EP08100816.1

    申请日:2008-01-23

    IPC分类号: G10L19/08

    CPC分类号: G10L19/093

    摘要: A method and apparatus for decoding a parametric-encoded audio signal are provided. According to the present invention, parameters extracted from a bitstream of a parametric encoded audio signal are adjusted by a user and component signals are synthesized based on the adjusted parameters to be displayed to a user so that a user can adjust the amplitudes of the component signals to apply various sound effects according to the user's desire. In addition, since an equalizer function is embodied in a codec of an audio reproduction apparatus, additional equalizer modules are not required and thus complexity of the audio reproduction apparatus can be reduced.

    摘要翻译: 提供了一种用于解码参数编码音频信号的方法和装置。 根据本发明,由参数编码的音频信号的比特流提取的参数由用户调整,并且分量信号基于被调整的参数被合成以被显示给用户,使得用户可以调整分量信号的幅度 根据用户的需要应用各种音效。 此外,由于在音频再现装置的编解码器中实现了均衡器功能,因此不需要附加的均衡器模块,因此可以减少音频再现装置的复杂性。