EMU_CHAN_PEFE
emu_wrptr(sc, ch, EMU_CHAN_PEFE, 0);
emu_wrptr(sc, ch, EMU_CHAN_PEFE, 0);
#define EMU_CHAN_PEFE_PITCHAMOUNT EMU_MKSUBREG(8, 8, EMU_CHAN_PEFE)
#define EMU_CHAN_PEFE_FILTERAMOUNT EMU_MKSUBREG(8, 0, EMU_CHAN_PEFE)