extern void interrupt_disable() ;
extern void interrupt_enable() ;

extern void sndTransfer( char *, char * ) ;
extern void sndMixTrans( char *, char *, char *, char * ) ;
extern void sndDelay( char *, char *, char * ) ;
extern void sndVibrato( char *, char *, char * ) ;
extern void sndTremolo( char *, char *, char * ) ;
extern void sndVoiceChange( char *, char *, char *, char * ) ;
extern void sndExpand( char *, char *, char *, char * ) ;
extern void sndPitch( char *, char *, char *, char * ) ;

/* 1994 1 �V�K�lj� */
extern void sndPhaseDelay( char *, char *, char *, char * ) ;

extern int hiSpeedSin( int ) ;