Testing with PortAudio’s demo paex_read_write_wire.c [2]
It looks like this uses the blocking IO interface, I guess that adds its own buffering on top of everything else. For minimal latency you want the callback interface. Try adapting test/patest_wire.c or test/pa_minlat.c.
It looks like this uses the blocking IO interface, I guess that adds its own buffering on top of everything else. For minimal latency you want the callback interface. Try adapting test/patest_wire.c or test/pa_minlat.c.