基于Daubechies小波的基音检测

Detection of the fundamental frequency based on Daubechies wavelet transform

语音中的基音成分是进行语音分析的重要参数,利用Daubechies小波在语音信号的低频分解方面的良好性质,提出了Daubechies小波分解的基音检测方法.该方法具有抗噪声性能良好、低频近似程度高等特点.

Fundamental frequency is an important parameter in speech analysis. This paper gives a detection method of the fundamental frequency using Daubechies wavelet. This method has a good approximate to the speech signal in low frequency domain. And it also has the character of noise restraining.