Can you explain what is wrong with the link in reply #3?
I would like to know and use libraries and functions, like to do a FFT, show a spectrum, start listening the microphone, etc.
To start listening you start recording the samples from the analogue input.You record for the number of samples you want to pass to the FFT.
There is a function to record data in the library on reply #5?
How can I say to the board how to start listening to the microphone? Is there a function to do that?
How can I do FFT?
but processing give me bunch of errors.