| 摘要: |
| ＩＴＵＧ。７２３．１建议的编码速度为５．３和６．３ｂｉｔ／ｓ的双码率编码方案是一种运算复杂的用于多媒体通信中的低码率语音编码器。本文介绍了该编码器的算法原理和在一片ＴＭＳ３２０Ｃ５４１定点ＤＳＰ芯片上实时实现该编码器过程中的软，硬件结构及关键技术。 |
| 关键词: 语音编码 数字信号处理器 ITUG.732.1 |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目: |
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| The Real-time Implementation of ITU Recommendation G.732.1 Speech Coder on DSP |
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| Abstract: |
| The rapidly developing DSP technology has more and more become a powerful tool in the field of speech processing, which makes it possible to implement all kinds of complex algorithm in real time. ITU Recommendation G.723.1 is a very low bit rate speech coder with two associated bit rate of 5.3 and 6.3kbit/s, mainly used in the field of multimedia communication. In this paper, the principle of this algorithm and its implementation on a single chip of foxed point TMS320C541 DSP are presented, including the structure of hardware, software and the key technology in the process of implementation. |
| Key words: Circuit and Device, Speech Coding, DSP(Digital Signal Processor), real-time implementation, |
