Store audio signal into array using matlab -

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i recorded audio signal (.wav) , need convert signal matrix or array using matlab, can add one.

[x,fs] = wavread('c:\users\amira\desktop\test222.wav');  fs=44100  length(x) = 339968

how can sample signal , covert matrix of (n,1) n=40.

if want first 40 samples of audio signal, can index x:

[x,fs] = wavread('c:\users\amira\desktop\test222.wav'); first40 = x(1:40);

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