语音harmonic特征提取，先对语音信号分帧，然后对每一帧使用中心频率维基音频率的倍数的带通滤波器进行滤波，最后滤波结果的傅立叶变换的结果-Voice harmonic feature extraction, the first speech signal sub-fr a me, and then using the center frequency for each fr a me of Wiki sound frequency multiple of the band-pass filter for filtering the results of the final filtered result of the Fourier transform