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Index › Programming Questions & Help › Sound,  Music Libraries › Minim: Audio Input Frequency
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Minim: Audio Input Frequency (Read 3212 times)
wafflesauce
Minim: Audio Input Frequency
Jul 2nd, 2008, 11:56pm  
Hey guys, I am working on a project where I visually display the notes on a piano.  I have a keyboard plugged into the computer, and I want to get the frequency so that I can determine what note is being played.  I know that you can get frequencies using the FFT class, but I can't figure out if you can get the frequency for AudioInput.  Thanks.
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antiplastik
Re: Minim: Audio Input Frequency
Reply #1 - Jul 3rd, 2008, 12:14am  
(just in case you are using a MIDI keyboard, it would be much easier to just retrieve the MIDI signals using proMidi library, for example)


Quote:
I can't figure out if you can get the frequency for AudioInput.

see the FFT example code
http://code.compartmental.net/tools/minim/manual-fft/

and replace what refers to the audio sample by your pointer to audio input. something like:

Code:
in = Minim.getLineIn(Minim.STEREO, 512, 11050);
...
fft.forward(in.left);
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