Process and device for the scalable coding of audio signals
    1.
    发明授权
    Process and device for the scalable coding of audio signals 失效
    用于音频信号的可缩放编码的过程和设备

    公开(公告)号:US6115688A

    公开(公告)日:2000-09-05

    申请号:US51347

    申请日:1998-07-01

    CPC分类号: H04B1/665

    摘要: In coding of an audio signal, coded signals with low quality and bit rate on the one hand and coded signals with high quality and bit rate on the other hand are transmitted to a decoder. At first, the audio signal is coded with low bit rate and is transmitted to the decoder before an additional coded signal is transmitted to the decoder, which either alone or together with the first coded signal upon decoding thereof provides a decoded signal with high quality within the decoder. In this manner, a low-quality decoded signal is generated first in the decoder before decoding of the high-quality signal is possible.

    摘要翻译: PCT No.PCT / EP96 / 03609 Sec。 371日期:1998年7月1日 102(e)1998年7月1日PCT PCT 1996年8月16日PCT公布。 公开号WO97 / 14229 日期1997年04月17日在编码音频信号时,一方面具有低质量和比特率的编码信号和另一方面具有高质量和比特率的编码信号被传送到解码器。 首先,以低比特率对音频信号进行编码,并且在将附加的编码信号发送到解码器之前被传送到解码器,解码器单独或与解码时的第一编码信号一起提供高质量的解码信号 解码器。 以这种方式,在对高质量信号进行解码之前,首先在解码器中产生低质量的解码信号。