origin+low+up+relow2.zip_MATLAB假变速+下2采样_UP_origin_speech

[y,fs]=audioread('ring.mp3'); audiowrite('ring-.wav',y,22050); audiowrite('ring+.wav',y,88200); x=resample(y,22050,44100); audiowrite('-ring.wav',x,22050); [y2,fs2]=audioread('ring-.wav'); [y3,fs3]=audioread('ring+.wav'); [y4,fs4]=audioread('-ring.wav'); subplot(221),stem([0:fs-1],abs(fft(y,44100))); subplot(222),stem([0:fs2-1],abs(fft(y2,22050))); subplot(223),stem([0:fs3-1],abs(fft(y3,88200))); subplot(224),stem([0:fs4-1],abs(fft(y4,22050)));