| 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 |
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(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 |
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(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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