| 基于DSP的多功能数字语音记录系统 |
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| 引用本文： | 赵鹏华,许录平,罗亚非.基于DSP的多功能数字语音记录系统[J].电声技术,2002(3):56-58. |
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| 作者姓名： | 赵鹏华 许录平 罗亚非 |
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| 作者单位： | 1. 西安电子科技大学,电子工程学院,陕西,西安,710071
2. 北京北阳电子技术有限公司,北京,100085 |
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| 摘 要： | 介绍了一种基于ADSP_2181并应用ITU-T的G.723.1标准进行语音编解码的多功能数字语音系统。首先给出系统硬件框图，对各模块功能进行了阐述；还介绍了IUP-T的G.723.1标准算法原理；重点论述了控制及接口的软件设计思想，并给出主程序流程图。实现语音信息的采集与播放，主观测评合成语音达到通信质量。
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| 关 键 词： | DSP 多功能数字语音记录系统 语音编码 |
| 修稿时间： | 2001年10月11 |
Multi-purpose Digital Speech Recording System Based on DSP |
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| ZHAO Peng-hua,XU Lu-ping,et al..Multi-purpose Digital Speech Recording System Based on DSP[J].Audio Engineering,2002(3):56-58. |
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| Authors: | ZHAO Peng-hua XU Lu-ping |
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| Affiliation: | ZHAO Peng-hua,XU Lu-ping,et al. |
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| Abstract: | This paper presents a multifunctional digital speech system based on ADSP_2181which realizes speech encoding and decoding using G.723.1standard.Firstly,the system hardware block diagram is given to expound module function;Secondly,G.723.1algorithm is introduced;It has the key on the control and interface software design with main program flow chart being giv-en.Speech information is acquired and played with synthesized speech being tested subjectively to communication quality. |
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| Keywords: | speech coding multipulse maximum likelihood quantization(MP-MLQ) alge-braic-code-excited linear-prediction(ACELP) |
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