clg clear data=getspeech('0af1s1t0.wav'); Fs=12500; plot(data) end1=input('end1?') end2=input('end2?') datar=data(end1:end2); clear data plot(datar) [d,dsize]=size(datar); deltaf=Fs/8192; freq=-Fs/2:deltaf:Fs/2-deltaf; dftdatar=abs(fftshift(fft(datar,8192))); plot(freq,dftdatar) axis([-Fs/2 Fs/2 0 max(dftdatar)]) xlabel('Analog Frequency (Hz)') ylabel('Spectral Magnitude') clear freq dftdatar pause sound(datar,Fs) pause plot(datar) end1=input('end1?') end2=input('end2?') datar2=datar(end1:end2); plot(datar2) clear datar2 input('wideband spectrogram') specgram(datar,512,12500,65,45) title('wideband spectrogram') input('narrowband spectrogram') specgram(datar,1024,12500,650,550) title('narrowband spectrogram')