Makes the game use softer (logarithmic) audio curves, but removes fade-in and fade-out for sound effects, fade-in for music, and automatic music volume attenuation for when speech is playing
The game originally renders at 640x432 which is then presented letterboxed at 640x480. Enabling this option removes the forced letterbox effect, so that the game fits better on screens with an aspect ratio wider than 4:3.