enum{	Fmono		= 1,	Fin		= 2,	Fout		= 4, 	Vaudio		= 0,	Vsynth,	Vcd,	Vline,	Vmic,	Vspeaker,	Vtreb,	Vbass,	Vspeed,	Vpcm,	Nvol,}; void	audiodevopen(void);void	audiodevclose(void);int	audiodevread(void*, int);int	audiodevwrite(void*, int);void	audiodevgetvol(int, int*, int*);void	audiodevsetvol(int, int, int);