一个分段声码器算法的实时实现

ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1987-04-06 DOI:10.1109/ICASSP.1987.1169363

Salim Roukos, A. Wilgus, W. Russell

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引用次数: 10

摘要

在之前的论文中，我们描述了分段声码器，它以独立于扬声器的方式以300 b/s的速度传输可理解的语音，即新用户不需要对系统进行训练。正如矢量量化器所期望的那样，段声码器的存储和计算需求明显大于标准的LPC-10声码器。在本文中，我们描述了减少分段声码器的计算和存储需求的方法，并提出了一种可在包含多个数字信号处理芯片的硬件上实时实现的算法。简化算法的DRT得分为78%。

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A segment vocoder algorithm for real-time implementation

In previous papers, we have described the segment vocoder, which transmits intelligible speech at 300 b/s in speaker-independent mode, i.e., new users need not train the system. As expected for vector quantizers, the storage and computational requirements of the segment vocoder are significantly larger than those of the standard LPC-10 vocoder. In this paper, we describe methods for reducing computational and storage requirements of the segment vocoder and present an algorithm that is implementable in real-time on hardware containing several Digital Signal Processing chips. The DRT score of the simplified algorithm is 78%.

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来源期刊

ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing

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