Question
Hi, I have the following code. x1=wavread('speech.wav'); x2=wavread('speech_noise.wav'); I have to do x2-x1 I am getting the error as Dimension mismatch. How to rectify it?
Expert Answer
John Williams
PhD Expert
Answered Aug 25, 2026
Assuming they correspond to the same sampling rates, truncate one of them to be of the same length as the smaller one:
n1 = length(x1); n2 = length(x2); % Assuming n1 < n2 x2 = x2(1:n1)
Or maybe you want to interpolate
x2 = interp1(1:n2, x2, linspace(1, n2, n1));
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