# Which Matlab function is for cross-correlating two signals?

1. ## Which Matlab function is for cross-correlating two signals?

in order to crosscrrolate two signals which of these two Matlab uctions are true? "xcorr" or "crosscorr"

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2. ## xcorr crosscorr

xcorr is only what I am aware of. There is no crosscorr in my version.

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3. ## crosscorr matlab

there is a linear microphone array like this: x1 x2 x3 x4 x5 x6 x7 x8
The speech signal has propogated 1m from the center of the array.
I have written this code in order to find the sample delays that each microphone recieves the speech signal.

Now crosscorellate the input signals with reference signal (mic4) and find the sample in which the maximum occures. The sample in which miximum occures is the sample delay

%%%%%%%Synchronyze all input signals%%%%%%%
% cross-correlate the input signals

C1=xcorr(mic4,mic1); % mic4 is reference signal and has no delays
C2=xcorr(mic4,mic2);
C3=xcorr(mic4,mic3);
C4=xcorr(mic4,mic4);
C5=xcorr(mic4,mic5);
C6=xcorr(mic4,mic6);
C7=xcorr(mic4,mic7);
C8=xcorr(mic4,mic8);

% find the sample in which cross-corelation reaches it's maximun

b=1;

for k=2:41
if C8(k,1) >= C8(b,1)
b=k;
else
b=b;
end
end
return

I run this code and for all C1,C2,...,C8 sample delay is equal to "1".

I don't know what is my mistake?!!!
LOOKING FORWARD TO HEAR FROM YOU ALL.
REGARDS

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