i've tried setting up the driver error compensation, i've used the lesson about it, with the ableton live set.
i've found out two things, first probably is useless recording the external output to the input because the value obtained is exactly the same called "overall latency" in the preferences/audio/under "driver error compensation"
second, i've set the compensation value, but the audio isn't compensated.
than i've tried putting 300ms just to try.. and the waveform is always there, with its 9.60 ms (i say 9.60 because adjusting the start in the clip the nearest value is 9, but is a bit later, so 9.60 (displayed as overall latency) seems the right value)
so, how to make it work?