Reply to Problems syncing Traktor and Ableton -> Traktor Audio 10

Hi,

I tried now a whole day to get rid of my actual problem syncing Traktor (2.6) and Ableton (latest). The problem is on a Macbook Pro Retina and on a actual iMac..

I have setup everything with Jack-Pilot, tried later also Soundflower, but the same..

4 Channels are routed from Traktor through Ableton and that works fine. But if I want want to sync both, it is not possible, as the offset drifts. That means the metronome of both are matched I start with -35 ms delay in Ableton. Ok, fine so far.
But after a minute the metronomes are not in sync anymore, I have to readjust the delay. After around 10 minutes the delay is at +100 ms an still drifting. If I match the metronomes manually, the same is happening, it seems, Ableton is running at another speed.

Next I ran both on the Audio 10 on the same channel, metronomes are in sync, no problem. Made the routing again and selected the internal audio device of the Macbook/iMac, after 30 minutes still in sync.

If I add the the Audio 10, the signal starts drifting again..

Buffer in Traktor is set to 512 and in Ableton the same. If I would change the buffer in Ableton to 64 samples it seems the problem is gone (at least I tested it only for 10 Minutes), but the I have glitches, drop outs and so on, if I run some tracks and using effects..

iMac is two weeks old and the Macbook was freshly installed (not from a backup) also 2 weeks ago, because of graphic-problems (got a new logic board a week ago).

Something I do not understand: how can a signal drift? I would understand if the BPM is different, but they are both at 126, if I match it manually, so the must be in sync.. That is really confusing, so maybe someone can explain that?

Many thanks in advance!

brasax