Aperiodicity control in ARX-based speech analysis-synthesis method
Aperiodicity control in ARX-based speech analysis-synthesis method
复制标题
基于ARX的语音分析合成方法中的非周期性控制
DOI：
10.21437/eurospeech.2001-540
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
H. Kasuya
中科院分区：
文献类型：
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作者：
Takahiro Ohtsuka;H. Kasuya
我们提出了一种改进的算法，一个强大的语音分析合成方法的基础上的自回归与外源输入（ARX）的语音产生模型先前提出的。该语音分析-合成方法能够从语音发声中自动估计声道（共振峰）和声源参数，即使对于非常高音调的语音也能产生精确的共振峰值。本文提出的改进算法考虑了语音产生过程的动态特性，在语音源信号中加入了非周期成分。感知实验表明，在分析-合成中的非周期性分量的实现在提高合成语音的感知质量方面是非常有效的，特别是对于柔和的声音，典型的女性声音质量。
We present an improved algorithm for a robust speech analysissynthesis method based on an auto-regressive with exogenous input (ARX) speech production model proposed previously. The speech analysis-synthesis method is capable of making an automatic estimation of vocal tract (formant) and voice source parameters from a speech utterance, generating accurate formant values even for very high-pitched voices. The improved algorithm presented in this paper incorporates aperiodic components included in the voice source signal, taking the dynamic nature of the speech production process into account. Perceptual experiments show that implementation of the aperiodic components in the analysis-synthesis is very effective in improving the perceived quality of synthetic speech, particularly for soft voices, typical of female voice quality.