Android Question Reading the frequency of a microphone input signal

[Gary Duggleby]

How do you read the frequency of a signal being fed into the microphone in, input?

 

[Erel]

You can use AudioStreamer to get the raw PCM data and then analyze it with the FFT library.

 

[klaus]

You may have a look at FFT_Record in the [B4X] FFT Class.