一种2.4kbps波形插值声码器 |
| |
引用本文: | 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,1998,26(11):110-113,106. |
| |
作者姓名: | 杨慧敏 陈弘毅 孙义和 吴历曦 |
| |
作者单位: | 清华大学微电子学研究所,北京,100084 |
| |
基金项目: | 国家自然科学重点基金!69636030,国家教委博士点基金 |
| |
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。
|
关 键 词: | 语音编码 线性预测 声码器 波形插值 特征波形 |
A 2.4kbps Vocoder Based on Waveform Interpolation |
| |
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. |
| |
Keywords: | Speech coding Linear prediction Vocoder Waveform interpolation Characteristic waveform |
本文献已被 CNKI 维普 万方数据 等数据库收录! |