This does not have any dependencies.

Thanks to these two sources:

http://marblemice.blogspot.com/2010/04/generate-and-play-tone-in-android.html http://stackoverflow.com/questions/2413426/playing-an-arbitrary-tone-with-android/3731075#3731075

This is an android app that produces an audible waveform. Contains four tabs of nine buttons. Each button is a different frequency. Press a button, hear a noise.

I wrote this app myself from scratch in one day.

By E John Feig