On Sunday, January 11, 2004, at 02:49 PM, Ken Norris wrote:
...other than that, the only thing I can do is point you to QuickTime midi
instruments and see if there is some way to use the player to make
comparisons. At least you could do it by ear.
I think this is a good idea.
Or look for other methods that avoid actually measuring the frequency of the flute. Would high, low or right-on indicators be OK?
I see three problems areas in measuring the frequency of a flute tone.
The first is (the best I know) that recording is to a file and is not an input stream. That will make a delay from recording the tone and then analyzing it. The greater the accuracy needed, the longer the delay. (There might be some way to avoid some of that.)
The second is converting the sound file into a form for computation.
The third is the signal processing. This might involve some digital filtering and then a FFT. The FFT result would then be analyzed for finding the fundamental. There are probably ways to avoid that if all you need is the fundamental and you know about what it is.
I hope that I'm missing something in all this. This looks like a lot of work to me.
Dar Scott
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