DAW Sync Issue

Posted Mon, 2023-10-09 - 18:08

Im using Bitwig 5.

The sync works really well. The only issue Im having is that whenever I loop a container and start from a container in the middle of the song, my DAW's timing is off. It sort of sounds like its Halftimed but the tempo is the same as Synfire's.

When I start the song in Synfire from the beginning, I have no problems and it works beautifully but when I loop a container and play from the container, my DAW is somehow Halftimed. Like I said, the temp is exactly the same and they are still synced.

andre

Mon, 2023-10-09 - 18:25 Permalink

Loops have not been tested yet, so thanks for your feedback.

It is not quite clear how a loop in Synfire is supposed to map to the DAW. For Synfire there is no way to supply a DAW with loop locations. It is also impossible for any sync method to reposition an unprepared DAW to the start of a loop without disruptive hickups and delays.

So the only way this could work is to keep the DAW moving on (not looping) while Synfire is running its loops. Not sure if that makes any sense.

fullspectrum

Mon, 2023-10-09 - 19:03 Permalink

Thanks.

I understand what you mean and just tried it. No luck. To make it worse, I just started it from a container, no looping enabled on Synfire's side and got the same result. As of now, I must play all the way through from the beginning of the song. Hope at least that is fixable soon.

andre

Mon, 2023-10-09 - 19:08 Permalink

MTC and MMC sync were tested from any starting position, container or timeline selection. As far as I remember that also worked with MIDI Clock in BitWig. Will check again.

EDIT: Test worked fine with BitWig 5.

andre

Mon, 2023-10-09 - 19:18 Permalink

Ok, I now see absolute time is shifted significantly after a while. Strange, as the tempo is detected correctly by BitWig, so the clock rate must be right. Will check this.

andre

Mon, 2023-10-09 - 19:23 Permalink

Congratulations. You have just found a bug with BitWig.

Running BitWig and Ableton Live side by side, both receiving the same clock from Synfire, Live is correct and stays 100% in sync while BitWig veers off.

You should report that as a bug. Something along the lines of "MIDI Clock sync detects tempo correctly but doesn't follow/increment absolute time correctly."