How to use

AudioRecorder

in

com.badlogic.gdx.audio

@Override
public void pause () {
  device.dispose();
  recorder.dispose();
}

  @Override
  public void run () {
    while (true) {
      recorder.read(samples, 0, samples.length);
      device.writeSamples(samples, 0, samples.length);
    }
  }
});