how to compare audio track

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hi!
I want to know if it's possible to compare songs not by their names but by comparing the digits of the songs. Do I need something that will convert the audio track into some intermidiate language and then compare digit by digit?
I would like to know what are the things that I have to know for this . ( what is AI ??)

Posted 16-May-11 1:41am

rachel lvani

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yesotaso 16-May-11 10:26am

If you want to compare "files" Wayne explains the way to do that. If you want to compare likeness(not exact match) of "audio files", I would say stay away from that subject while you havent begun yet :). Most common known definition of AI is Artificial Intelligence but I doubt thats what you want to know.

Albert Holguin 16-May-11 10:33am

agree, see my solution...

rachel lvani 16-May-11 15:59pm

what I realy wanted to do is to compare two similar audio files with different names, by their digit code (this is for my senior year project) but the question is if different encoding (wav vs mp3...) will have different Hash code..?! thank you very much !

2 solutions

Solution 1

If you want to check whether two files are the same, you can just create a SHA1 or MD5 hash and then compare the Hash codes. Thus, if you know the music files are in the same format, this would be an easy way to check if they are the same. This assumes you meant to ask how to do a binary comparison.

Posted 16-May-11 2:09am

Wayne Gaylard

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Albert Holguin · Accepted Answer · 2011-05-16T04:27:00

You typically need real digital signal processing for this type of project for a number of reasons:
1. A bit offset will render a comparison obsolete (you'll have to do a correlation).
2. Different data rates will have different binary data.
3. Different encoding (wav vs mp3) will have different binary data.

I don't know if there's any library that already does this (there may be, WinAmp already does this for automatic track tagging), but if you'd like to do it from scratch it may be quite a bit of work.