void S_PauseGameSounds (void);
void S_ResumeGameSounds (void);
void S_SetChannelVolume (unsigned int ch_ind, float fvol);
-void S_ClearBuffer (void);
void S_Update(vec3_t origin, vec3_t forward, vec3_t left, vec3_t up);
void S_ExtraUpdate (void);
void SND_InitScaletable (void);
void SNDDMA_Submit(void);
-void S_AmbientOff (void);
-void S_AmbientOn (void);
-
void *S_LockBuffer(void);
void S_UnlockBuffer(void);