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Topic: Frequency recognition with microphone (Read 2 times) previous topic - next topic

sondschi

I try to implement a lighting console which should react to a analog microphone input with the arduino UNO. I would like it to change colors according to the pitch.
Is this even possible via the analog input? The only thing I can read is the volume.
The code should run on the arduino alone (without processing).

Grumpy_Mike


Gadget999

how easy would it be to get the arduino to flash an led and beep when it heard a sound of a certain (high) frequency ?

robtillaart


I would use a PWM output to drive the led to indicate the volume level iso flashing.
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

Gadget999

how do you get an arduino to analyse sound ?

i saw the link to the software that displayed a graphic equaliser

do you have to record the sound and then split it into different frequencies

can it be done in real time ?

robtillaart

It is calleda fourier analyses - search for FFT  in the right upper - and you might find a lot of threads including - http://arduino.cc/forum/index.php/topic,56540.0.html -
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

Gadget999


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