Comapring pitches with digital audio

Posted by user2250569 on Stack Overflow See other posts from Stack Overflow or by user2250569
Published on 2013-11-03T15:15:59Z Indexed on 2013/11/03 21:55 UTC
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signal-processing

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pitch

I work on application which will compare musical notes with digital audio. My first idea was analyzes wav file (or sound in real-time) with some polyphonic pitch algorithms and gets notes and chords from this file and subsequently compared with notes in dataset. I went through a lot of pages and it seems to be a lot of hard work because existing implementations and algorithms are mainly/only focus on monophonic sound.

Now, I got the idea to do this in the opposite way. In dataset I have for example note: A4 or better example chord: A4 B4 H4. And my idea is make some wave (or whatever I don't know what) from this note or chord and then compared with piece of digital audio.

Is this good idea? Is it better/harder solution? If yes can you recommend me how to do it?

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