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Topic: frequency calculation to the compare of vote (Read 546 times) previous topic - next topic

I have planned with arduino frequenzen to compare,  in which I take a frequency, save and then compare with a second recording.
I've already heard of the fft library, but I cannot handle with her.
My problem is that I do not know how I can calculate the frequency with the input from the microphone.
I hope someone can help me.

Magician

Look at this project, its listening , store and compare voice password.
http://coolarduino.wordpress.com/2012/01/

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