i haven't a sensor board so i tried adjusting things to do with the monkey to the loudness sensor.. then with the sound source being the internal synth and not the microphone.. and added a soundtrack for it to move too. still kept the burp.. just press the space bar. backgrounds change at a set frequency and their brightness is determined again by loudness sensor.. THIS WILL NOT WORK ONLINE..AND WHEN OFFLINE IT NEEDS THE SOUND SOURCE SET TO INTERNAL SYNTH MIXER..in recording properties of sound card..etc..