Ableton Forum

We have recorded almost an entire album live in Pro tools. We were using two computers running Ableton Live, one as master, the other as slave.
When we started recording we tried to make Pro Tools the master, but the tempe variations were just too suvire. Let's say we set Pro Tools to 120 bpm, ableton's tempo would swing from 119 to 121 bpm constantly.

Whats causing this?

At this point we are trying to program more synths and we have the same problem. It's really annoying.

Edit:
By the way.. We ended up not syncing it to Pro Tools when we recorded.

Nobody even having the same problem?

It's a general problem that syncing with midi clock doesn't ensure accurate timing.

Try using MTC (Midi Time Code) instead.

Thanks for the tip.

When I switch to midi timecode, the midi sync isn't there at all. If I switch back to midi clock the sync is there, but it's not accurate.

Do I need to make changes in Pro Tools settings as well to make it send timecode instead of clock?

Yes.