Button 1 - Speed (1x, 1.5x, 2x, 0.5x, 0.1x) Button 2 - All Sounds Together (Loud) Button 3 - Reset Button 4 - Auto mode (Order is from left to right, top to bottom) (Don't rely on auto-mode giving you a cinematic masterpiece, it's still pretty random, but it should be more consistent.)
All work and credit goes to @Policronos.