Playing an arbitrary tone with Android

Question

Is there any way to make Android emit a sound of arbitrary frequency (meaning, I don\'t want to have pre-recorded sound files)?

I\'ve looked around and ToneGenerator

Answer 1

I wrapped the above wonderful solutions into a neat little package that's more useable out of the box as a simple configurable buzzer. It runs it in a background thread and has stop and play methods and a handful of options you can set.

It's up on JCenter so you can add it to your dependencies list like this

compile 'net.mabboud:android-tone-player:0.2'

and you use it like this for a continuous buzzer

ContinuousBuzzer tonePlayer = new ContinuousBuzzer();
tonePlayer.play();

// just an example don't actually use Thread.sleep in your app
Thread.sleep(1000); 
tonePlayer.stop();

or a buzzer played only once and you can set frequency and volume like this

OneTimeBuzzer buzzer = new OneTimeBuzzer();
buzzer.setDuration(5);

// volume values are from 0-100
buzzer.setVolume(50);
buzzer.setToneFreqInHz(110);

Extended blog post here about it here GitHub here