سلام من برای پردازش صدای خودم قبلا یک برنامه ای نوشتم !!یک فایلی ضبط کردم و بعد تبدیل به فرمت wav کردم ازش یک سری تبدیلات گرفتم توی یک mfile ذخیره کردم حالا وقتی می خوام از فایلم دوباره اجرا بگیرم error می ده نمی دونم مشکل از کجاست برنامه و خطا رو براتون می نویسم ببینید اینم بگم import / file کردم باز error میده لطفا کمک کنید خیلی فوریه!!! 
[x,Fs,bits]=wavread('voice-2014-10-31_10-46-25.wav'
;
ans=Fs
ans=bits
f = 8*(1:84992)/84992;
t=f*10/8;
figure(1);plot(t(1:80000),x(1:80000))
title('x = Original Sound file (Wave file)'
xlabel('time (s)'
ans=length(x),'bit rate = 64Kbps , Sample rate = 8KHz '
X=fft(x);
figure(2);plot(X)
title('X = FFT(x)'
a=abs(X);
figure(3);plot(f(1:80000),a(1:80000))
title('a = Abs(FFT(x))'
xlabel('freuency (KHz)'
sound(data(:,1),fs)
A=filter(1,[1 zeros(1,3999) -0.5 zeros(1,3999) -0.25],y);
wavplay(A,48000)
plot(A)
ylabel('Filtered y'
xlabel('Time (sec)'
title('filtering'
??? Error using ==> wavread
Cannot open file.

[x,Fs,bits]=wavread('voice-2014-10-31_10-46-25.wav'

ans=Fs
ans=bits
f = 8*(1:84992)/84992;
t=f*10/8;
figure(1);plot(t(1:80000),x(1:80000))
title('x = Original Sound file (Wave file)'

xlabel('time (s)'

ans=length(x),'bit rate = 64Kbps , Sample rate = 8KHz '
X=fft(x);
figure(2);plot(X)
title('X = FFT(x)'

a=abs(X);
figure(3);plot(f(1:80000),a(1:80000))
title('a = Abs(FFT(x))'

xlabel('freuency (KHz)'

sound(data(:,1),fs)
A=filter(1,[1 zeros(1,3999) -0.5 zeros(1,3999) -0.25],y);
wavplay(A,48000)
plot(A)
ylabel('Filtered y'

xlabel('Time (sec)'

title('filtering'

??? Error using ==> wavread
Cannot open file.
دیدگاه