最终研制出一个2400 b/s的LPC声码器

COMSIG 88@m_Southern African Conference on Communications and Signal Processing. Proceedings Pub Date : 1988-06-24 DOI:10.1109/COMSIG.1988.49297

D.J. Joubert, J.J.D. van Schalkwyk

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引用次数: 0

摘要

描述了基于tms32010的2400 b/s线性预测编码(LPC)声码器系统的最终结果。讨论了所使用的设计、实际注意事项以及与预处理和基音预测相关的问题。还描述了用语音平衡词表进行的可理解性测试的结果。该系统取得的良好效果主要得益于输入级的动态范围大，以及算法的明智选择和准确实现。

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Final results of the development of a 2400 b/s LPC vocoder

The final results obtained from a TMS 32010-based 2400 b/s linear-predictive coding (LPC) vocoder system are described. The design used as well as practical considerations and problems associated with the preprocessing and pitch prediction are discussed. The results of intelligibility tests, performed with phonetically balanced word lists, are also described. The good results obtained with the system are due mainly to the large dynamic range of the input stage, as well as the judicious choice of algorithms and the accurate implementation thereof.<>

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COMSIG 88@m_Southern African Conference on Communications and Signal Processing. Proceedings

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