int32 read sample data of the set slot
int32.positive smps
objref smplr
uint32_t smps;
smps = (attr_smplr.array[(inlet_slot << 2) + 1] -
attr_smplr.array[inlet_slot << 2]);
if (attr_smplr.rec && (attr_smplr.recslot == inlet_slot))
outlet_smps = 0;
else
outlet_smps = smps;