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How to implement cross correlation after FFT in DSP?

Started by warrior October 29, 2010
I have to do cross correlation of two audio file to prove they are
similar.
I have done FFT of two audio files and have the power spectrum value of
both the audio file in a separate array.how should i proceed further to do
cross correlation  to prove they are similar.Any basic ideas will be
helpful for me to learn and apply it.Thanks.
On Fri, 29 Oct 2010 02:00:55 -0500, "warrior"
<prassan86@n_o_s_p_a_m.gmail.com> wrote:

>I have to do cross correlation of two audio file to prove they are >similar. >I have done FFT of two audio files and have the power spectrum value of >both the audio file in a separate array.how should i proceed further to do >cross correlation to prove they are similar.Any basic ideas will be >helpful for me to learn and apply it.Thanks.
Hello Warrior, You might take a look at Section III of: http://classes.engr.oregonstate.edu/eecs/winter2009/ece464/AnalyticTDE_Sept1999_SPTrans.pdf Good Luck, [-Rick-]