引用本文: | 林嘉宇,易波.一种优质、低时延的 8kb/s 语音编码算法[J].国防科技大学学报,1998,20(1):63-67.[点击复制] |
Lin Jiayu,Yi Bo.A Toll-quality,Low-delay 8kb/s Speech Coder[J].Journal of National University of Defense Technology,1998,20(1):63-67[点击复制] |
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一种优质、低时延的 8kb/s 语音编码算法 |
林嘉宇, 易波 |
(国防科技大学 电子技术学院 湖南 长沙 410073)
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摘要: |
介绍一种优质、低时延的 8kb/s 语音编码算法,重点描述了算法的构造,分析了算法的性能。本算法可用一片 33MIPS 的通用定点 DSP 芯片实现。对算法所作的编解码信噪比测试和非正式的听音测试表明,该算法具有优良的编解码语音质量。 |
关键词: 语音编码,低时延 |
DOI: |
投稿日期:1997-09-12 |
基金项目: |
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A Toll-quality,Low-delay 8kb/s Speech Coder |
Lin Jiayu, Yi Bo |
(Institute of Electronic Engineering,NUDT,Changsha,410073)
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Abstract: |
This paper presents a 8kb/s speech coder which is based on CELP. The coder can offer toll-quality coded speech and low coding delay. The structure of the algorithm is described and the performance is analyzed. The coder and decoder can be implemented by one general-purposed 33MIPS fixed-point DSP chip. According to the objective SNR test and informal listening test,the coder shows good performance. |
Keywords: speech coder,low-delay |
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