电子学报2009，Vol.37Issue(10)：2291-2297,7.
一种符合ITU-T指标要求的嵌入式立体声语音频编码方法
A Embedded Stereo Speech and Audio Coding Method Meeting the Requirements of ITU-T Terms of Reference
摘要
Abstract
Based on the International Telecommunication Union Telecommunication Standardization Sector (ITU-T) standardization G.729.1,an embedded variable bit-rates stereo speech and audio coding method is proposed in this paper.In this coding algorithm, the middle information and side information of stereo signal are processed separately by G. 729.1 and modified modulated lapped transform coding techniques, the structure of bit-stream is embedded and the bit-stream can be divided into several layers. Wideband stereo signal and super-wideband stereo signal all can be processed by this codec. The maximum bit-rates of wideband stereo signal and super-wideband stereo signal are 48kb/s and 64kb/s, respectively. The test results indicate that the quality of the embedded speech and audio coding algorithm at stereo coding layers is close to Terms of Reference for ITU-T G. EV-VBR stereo codec.关键词
语音编码/音频编码/立体声编码/嵌入式编码Key words
speech coding/ audio coding/ stereo coding/ embedded coding分类
信息技术与安全科学引用本文复制引用
贾懋珅,鲍长春..一种符合ITU-T指标要求的嵌入式立体声语音频编码方法[J].电子学报,2009,37(10):2291-2297,7.基金项目
国家自然科学基金(No.60872027) （No.60872027）
北京市自然科学基金(No.4082006) （No.4082006）
