public boolean isInactive(){
  return (mAudioOutput.getLastActivityTimestamp() + AUDIO_TIMEOUT) < System.currentTimeMillis();
}

public boolean isInactive ( ) { return ( mAudioOutput . getLastActivityTimestamp ( ) + AUDIO_TIMEOUT ) < System . currentTimeMillis ( ) ; }
indicates if audio output is current inactive , meaning that the audio output hasn ' t recently processed any audio packets .
