对两个声音进行傅利叶变换，利用A声音的相位和B声音的幅度进行组合，合成一个新的声音-two voices right for Fourier transform, using the voice of the A and B phase margin voice of the portfolio, Synthesis of a new voice

对两个声音进行傅利叶变换，利用A声音的相位和B声音的幅度进行组合，合成一个新的声音-two voices right for Fourier transform, using the voice of the A and B phase margin voice of the portfolio, Synthesis of a new voice

对原始语音进行上采样和下采样，分析对比他们的时域图和频谱图。最后对比原始语音、75HZ激励、150HZ激励以及噪声激励下的效果-SOME SIMPLE MANIPULATIONS OF SOUND USING DIGITAL SIGNAL PROCESSING The original sound and its spectrogram Downsampling the waveform downsampling Ups