Sound pitch
Changes the pitch of all sounds for the specified player. The pitch is measured in cents (1/100 of a semitone); negative values lower pitch, positive values raise pitch. Pitch will remain altered, even if a new game is started, until sound_pitch is set back to 0. Note that sound_pitch will not affect the pitch of sounds already being played (so a looping sound will not be altered until the next time it starts).
Example:
setplayer[THISACTOR].sound_pitch -1024
...will lower the pitch of sounds as if the player were underwater.
If you want to manipulate the pitch of a specific sound dynamically, change this parameter before producing the sound and restore its original value thereafter:
getplayer[THISACTOR].sound_pitch temp setplayer[THISACTOR].sound_pitch -1024 sound BOS4_ATTACK setplayer[THISACTOR].sound_pitch temp