论文部分内容阅读
将基于小波变换与多分辨分析 (MRA)下的Mallat算法与传统的快速傅立叶变换(FFT)相结合 ,提出了一种新的语音信号的基音频率检测方法。实验结果表明 ,这种方法能有效地抑制语音信号中共振峰对基音频率的影响 ,且不必考虑语音信号的短时性。与传统基音估计方法比较 ,此方法具有运算速度快、基音估计准确度高的特点。
Combining the Mallat algorithm based on wavelet transform and multi-resolution analysis (MRA) with traditional Fast Fourier Transform (FFT), a new pitch frequency detection method for speech signals is proposed. The experimental results show that this method can effectively suppress the effect of the formant in the speech signal on the pitch frequency without considering the short-term nature of the speech signal. Compared with the traditional pitch estimation method, this method has the characteristics of fast calculation speed and high pitch estimation accuracy.