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Hi Guys, I have two G729 encoded files, i took the pcm version of them. i want to measure the similarity between these two files. these files are binary files so how one can measure the similarity between binary files, i wrote a code in C that takes patterns from the first one and search for similar ones in the second one, but i want to have a similarity measure.... i searched a lot in the literature, i found jaccard and the others but still can't dtermine which of them is eligible to my case. Thank in advance for your help..

+1  A: 

Since you mention the files are audio files, it would be better to define a similarity measure based on audio characteristics rather than simply doing a binary comparison. A quick search brought up a research project called MusicMiner that you may want to look into for further ideas.

casablanca
first of all thank you for yourreply...am trying to do creptanalysis on the plaintext level...i mean on binary level..i want to compare the output of the coder...thank you
Dobs