i want to find and hear the frequency responce of a .wav file using following equation y(n)=y(n-1)-0.9*y(n-2)+x(n)+x(n-1) but still its giving error in equation foolowing is my code
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lione felus
on 24 Jul 2015
Commented: Walter Roberson
on 24 Jul 2015
the main error is due to the equation please help me to figure it out .following is the code and error
PathOriginal = fullfile('C:\Users\Desktop\assigmnt', 'Voice 002.wav'); [y, Fs, n] = wavread(PathOriginal);
b=[1 1]; a=[1 -1 0.9];
y(n)= y(n-1)-0.9*y(n-2)+x(n)+x(n-1) [H,w]=freqz(b,a,n,Fs) player=audioplayer(y, Fs) play(player)
player2=audioplayer(H, w, Fs) play(player2)
error : ??? Error: File: q2.m Line: 7 Column: 12
Unexpected MATLAB operator.
this error appears in equation's line .
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Accepted Answer
Walter Roberson
on 24 Jul 2015
You need to use semi-colons to separate multiple commands in the same line. For example
player2=audioplayer(H, w, Fs) play(player2)
is not valid and needs to be
player2=audioplayer(H, w, Fs); play(player2)
2 Comments
Walter Roberson
on 24 Jul 2015
The line in question is
y(n)= y(n-1?)-0.9*y(n-?2)+x(?n-1)+x(n)
You should delete the line and retype it.
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