A speech coder for PC multimedia net-to-net communication

被引:0
作者
Parvez, S [1 ]
Elshafei-Ahmed, M [1 ]
机构
[1] King Fahd Univ Petr & Minerals, Dept Syst Engn, Dhahran 31261, Saudi Arabia
关键词
speech coding; LSF; LSP; multimedia; VoIP;
D O I
10.1002/dac.499
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The paper presents a speech coding algorithm for operation at 11 025 samples/s. The coder provides improved speech quality and compatibility with the MS-Windows multimedia environment. The coding algorithm has been developed by adapting the ITU G729 and enhancing it with some recent developments in the medium band coding. The coder operates over a band of frequencies ranging from 20 to 5400 Hz at a bit rate of 8.9 kbit/s. Application of this coder includes intranet VoIP, voice chatting, multimedia communications, and voice archiving. Copyright (C) 2001 John Wiley & Sons, Ltd.
引用
收藏
页码:679 / 694
页数:16
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