用于语音信号编码的嵌入式增量调制器系统

2014 2nd International Conference on Electronic Design (ICED) Pub Date : 2014-08-01 DOI:10.1109/ICED.2014.7015794

P. Hou, Ruzelita binti Ngadiran, Muhammad Imran bin Ahmad, Y. Obad

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引用次数: 1

摘要

本文讨论了脉冲编码调制和增量调制两种调制系统的比较。目的是通过比较增量调制(DM)和脉冲编码调制(PCM)来确定合适的语音编码调制。利用MATLAB、SIMULINK对增量调制与脉冲码调制的重构性能进行了比较，最后实现了DSP处理器的实时实现。仿真结果表明，增量调制优于脉冲编码调制。因此，在DSP板TMS320C6416上实现增量调制器进行实时测试。Delta调制在实时实现中得到了成功的实现，并且可以在以后的工作中进一步改进以降低噪声。

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An embedded delta modulator system for coding speech signals

This paper discusses the comparison between two modulation systems, pulse code modulation and delta modulation. The objective is to identify a suitable modulation for speech coding by comparing delta modulation (DM) with pulse code modulation (PCM). The reconstruction performance of the delta modulation is compared with the pulse code modulation by using MATLAB, SIMULINK and finally implemented DSP Processor for real time realization. The simulation result using SIMULINK shows that the delta modulation performs better than pulse code modulation. Hence, delta modulator is implemented for real time test on DSP board, TMS320C6416. Delta modulation is successfully implemented in real time realization and can be further improved to reduce noise for future works.

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2014 2nd International Conference on Electronic Design (ICED)

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