Does anyone know of an object I could use for the microphone on the Demoboard?

Private19872

I'm trying to make a program on my Demoboard that can hear music playing and be able to convert it into note data. Ideally, I'd like to find an object that can tell me the frequency on the microphone, but just getting the microphone data is the main problem I'm having. I saw an older thread showed how to use the ADC object to read the Demoboard mic. The problem I had was that the sampling rate was way too slow to actually get any frequencies from it and the data was very noisy. Also, would it be possible to read multiple frequencies from the microphone instead of just one? Thanks.

Rayman

Found this similar thread:
http://forums.parallax.com/showthread.php/155778

Maybe that will give you ideas...

Phil's code can detect linear frequencies, but it looks like an FFT is needed...

LoopyByteloose

There is an electronic parrot object that exists... maybe that is a little more rewarding that FFT maths. I also believe you can record to an SDcard. I provide the link to the thread as it seems to never have gotten into OBEX.

http://forums.parallax.com/showthread.php/105292-Parrot-Auto-voice-record-and-playback

Private19872

After looking into FFT (turns out the oscilloscope program on my computer has it), it looks like just what I need. I found this object, but I don't know how to information. Also, I don't think it directly samples from the mic. Does anyone know how I could do that?