A2．4kbps Vocoder Based on Waveform Interpolation

杨慧敏; 陈弘毅; 孙义和; 吴历曦

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A2．4kbps Vocoder Based on Waveform Interpolation

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- A2．4kbps Vocoder Based on Waveform Interpolation
- Acta Electronica Sinica Issue 11, Pages: 110-113(1998)
- 作者机构：
  
  1. 清华大学微电子学研究所!北京
  2. 100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN713
- Published：1998
- 稿件说明：
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[1]杨慧敏,陈弘毅,孙义和,吴历曦.一种2.4kbps波形插值声码器[J].电子学报,1998(11):110-113+106.

杨慧敏, 陈弘毅, 孙义和, et al. A2．4kbps Vocoder Based on Waveform Interpolation[J]. Acta Electronica Sinica, 1998, (11): 110-113.
[1]杨慧敏,陈弘毅,孙义和,吴历曦.一种2.4kbps波形插值声码器[J].电子学报,1998(11):110-113+106. DOI：

杨慧敏, 陈弘毅, 孙义和, et al. A2．4kbps Vocoder Based on Waveform Interpolation[J]. Acta Electronica Sinica, 1998, (11): 110-113. DOI：

摘要

本文描述了波形插值语音分析与合成方法的基本原理和编码技术，并给出一种2．4kbps波形插值声码器的实际结构.该声码器利用提取特征波形及浊/清音成分分离的方法，有效地去除了残差信号中基音波形的冗余度，能在2．4kbps数据率下获得高质量的合成语音．

Abstract

The basic principles and ceding techniques of the waveform inteoplation for speech analysis and reconstruction are described in this paper. The practical architecture for a 2 .4kbps vocalerbased on waveform interpolation is also given. The redundancy of the pitch-cycle waveform in residual signal is removed effectively by characteristic waveforms extraction and voiced/unvoiced Separation. High quality reconstructed speech can be obtained at 2 .4kbps bit rate.

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