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Hi,
 
I am trying to find the delay between two audio signals and I was using xcorr to find the
delay, but the result is not satisfied. Right now I am not using any option which are biased
and unbiased. Could anybody explain me what are the difference between biased and unbiased and
how does it effect on the result? Or if there is any paper that I could find that would explain
it?I used them and looked at the results and I still cannot understand. 
Any help would be appreciated and thank you in advance.
 
zhz

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