None (overflow flatline)

This mode will protect against clipping (sound values getting too high resulting in bad sound) by hard limiting the values to the maximum allowable level (100%). When the peak level begins to exceed 100% by too much, this method will sound distorted

Clip Protection

This is the default. Clip Protection mode protects against clipping (sound values getting too high resulting in bad sound) by scaling the volume to keep the peak level at or below 100%. This method will prevent any distortion