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    AUDIO-ENCODING METHOD AND APPARATUS, AUDIO-DECODING METHOD AND APPARATUS, RECORDING MEDIUM THEREOF, AND MULTIMEDIA DEVICE EMPLOYING SAME
    2.
    发明公开
    AUDIO-ENCODING METHOD AND APPARATUS, AUDIO-DECODING METHOD AND APPARATUS, RECORDING MEDIUM THEREOF, AND MULTIMEDIA DEVICE EMPLOYING SAME 审中-公开
    音频编码方法和装置，音频解码方法和设备，记录介质体和多媒体设备

    公开(公告)号：EP2717264A2

    公开(公告)日：2014-04-09

    申请号：EP12791983.5

    申请日：2012-06-01

    申请人： Samsung Electronics Co., Ltd.

    发明人： POROV,Anton ,  OSIPOV, Konstantin ,  CHOO, Ki-hyun

    IPC分类号： G10L19/02

    摘要： Provided is an audio encoding method. The audio encoding method includes: acquiring envelopes based on a predetermined sub-band for an audio spectrum; quantizing the envelopes based on the predetermined sub-band; and obtaining a difference value between quantized envelopes for adjacent sub-bands and lossless encoding a difference value of a current sub-band by using a difference value of a previous sub-band as a context. Accordingly, the number of bits required to encode envelope information of an audio spectrum may be reduced in a limited bit range, thereby increasing the number of bits required to encode an actual spectral component.

    摘要翻译： 本发明提供一种音频编码方法。 音频编码方法包括：获取基于预定子带在音频频谱包络线; 量化基于预定的子带的包络线; 和获得用于相邻子频带和无损通过使用先前子频带的差值作为上下文编码当前子频带的差值量化的包络之间的差值。 因此，编码音频频谱的包络信息所需要的比特的数目可以在有限位范围被减小，从而增加了实际的频谱分量进行编码所需的比特的数量。