Comparing fft results with a bank of data.

Hello all,

So im working on an audio transcription tool for my disertation.

So far i use an fft window (with overlap) to segment the soundwaves being passed in. I was using peak detection to analyse the frequency but this is not a stable way of doing it.

I have decided to implement a bank of notes to test each window against. Suppose i want to compare to arrays (one is the test note, one the bank note). How would i do so? I assume it is compared element by element, and i recall in a lecture a few years back something about using the square of the results, but im at a loss.

Any suggestions are greatly welcomed!

David