Trends and perspectives in wideband speech coding

被引：6
|
作者：
Schnitzler, J [1 ]
Vary, P [1 ]
机构：
[1] Rhein Westfal TH Aachen, IND, D-52056 Aachen, Germany
来源：
SIGNAL PROCESSING | 2000年 / 80卷 / 11期
关键词：
speech coding; wideband; linear prediction; analysis-by-synthesis; transform coding; standardization;
D O I：
10.1016/S0165-1684(00)00116-X
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：
Coding of wideband (7 kHz) speech and audio signals is one of the currently predominant research topics in source coding, driven by evolving, new applications in high-quality communication systems and by standardization activities in ITU-T and ETSI. This article deals with basic concepts from both traditional speech and audio coding and their implications for wideband signals. An overview on the state of art is given and novel solutions are described. Wideband coding by incorporating both time and frequency-domain techniques is of particular interest in order to achieve flexible solutions offering high quality at low bit-rates. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：2267 / 2281
页数：15
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