Flute Tuner

[Dar Scott]

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