ITU-T G.720 FRENCH-1995
带有非话音信号的低速率数字话音信号编码器性能的特征.数字传输系统的一般性质.15号研究组.19pp

Characterization of Low-Rate Digital Voice Coder Performance with Non-Voice Signals - General Aspects of Digital Transmission Systems Study Group 15; 19 pp

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标准号

ITU-T G.720 FRENCH-1995

发布日期

1995年07月01日

实施日期

废止日期

无

中国标准分类号

M72

发布单位

IX-ITU

引用标准

ITU-T Q.141-1993 ITU-T Q.1.51-1988 ITU-T Q.441-1988 ITU-T Q.271-1988 ITU-T Q.724-1988 ITU-T Q.23-1988 ITU-T V.25-1988 ITU-T Q.35-1988 ITU-T G.711-1988 ITU-T G.726-1990 ITU-T O.42-1988 ITU-T Q.112-1988 ITU-T Q.114-1988 ITU-T Q.451-1988 ITU-T Q.454-1988 ITU

适用范围

This Recommendation encompasses methods that can be used for quantifying and characterizing the performance of low-rate digital speech codecs with non-voice signals. The signals used are primarily those employed within the telephone network and, consequently, these methods are most appropriate for speech codecs intended for network (as opposed to end-user terminal) applications. The methods presented here can be used to quantify the performance of voice codecs that operate in the telephone band and that employ transmission rates that are less than or equal to 64 kbitfs.