Page 1 of 1

Subharmonicon and DFAM out of sync

Posted: Mon Feb 22, 2021 3:33 am
by natehorn
I'm trying to clock the DFAM from the Subharmonicon's 'SEQ 2 CLK' output but there's a weird delay. Basically the DFAM triggers moments after the Subharmonicon, rather than at the same time. So they're running at the same BPM but aren't really in sync - it seems the DFAM is only advancing *after* SEQ 2 CLK advances - not with it, like a ghost note.

Is this intended, am I doing something wrong? Some other weirdness happening here?

Re: Subharmonicon and DFAM out of sync

Posted: Wed Feb 24, 2021 7:37 pm
by MRNUTTY
If a clock is programmed, there is zero* delay between trigger, or clock, clk1, clk2 outputs.


*- one to two microseconds.

Re: Subharmonicon and DFAM out of sync

Posted: Thu Feb 25, 2021 2:01 am
by natehorn
- Deleted -

Re: Subharmonicon and DFAM out of sync

Posted: Thu Feb 25, 2021 3:31 am
by natehorn
Here is a video where I think it's clear you can see what I describe in the way the sequencers move together, the DFAM is clearly lagging behind the second sequencer of the Subharmonicon.

https://youtu.be/ehelH2pkxZk

Note that although the midi cable is plugged in I tried it without as well and it didn't make any difference.

Re: Subharmonicon and DFAM out of sync

Posted: Thu Feb 25, 2021 12:31 pm
by natehorn
I just tracked down this Reddit post from 8 months ago where other users are discussing this problem, seems it's an issue Moog have recognised and are hoping to fix. I'm really hoping they can fix it, seems like a long time to address a problem that has essentially rendered 2 of the outputs as duds :(

https://www.reddit.com/r/modular/commen ... t_in_sync/

Re: Subharmonicon and DFAM out of sync

Posted: Fri Apr 16, 2021 1:09 pm
by MRNUTTY
natehorn wrote: Thu Feb 25, 2021 3:31 am Here is a video where I think it's clear you can see what I describe in the way the sequencers move together, the DFAM is clearly lagging behind the second sequencer of the Subharmonicon.

https://youtu.be/ehelH2pkxZk

Note that although the midi cable is plugged in I tried it without as well and it didn't make any difference.
Sorry for the delay getting back. I saw the video, and rigged up the same 'patch'. My DFAM and SubH SEQ 2 CLK are right on target; both visually - at watchable speeds - and on a scope at faster speeds. Only 1us or so latency between clocks. So it got fixed somewhere along the line. My SubH is fairly new.

Re: Subharmonicon and DFAM out of sync

Posted: Fri Apr 16, 2021 2:03 pm
by natehorn
Would be great to hear from Moog on the issue, they seem incredibly choosey about what support tickets they respond to.

Re: Subharmonicon and DFAM out of sync

Posted: Thu May 13, 2021 5:31 pm
by joeel
Yes, this happens to me often. It is a bug that happens every now and then - probably because of some other thing I did without thinking about it. It goes away, sometimes after a restart, sometimes not. Sometimes it's gone next morning if I leave it off over the night. Very annoying and I do hope they fix it soon

Re: Subharmonicon and DFAM out of sync

Posted: Fri May 14, 2021 7:29 am
by natehorn
That's interesting, Ive never noticed them working correctly but I avoid them due to this issue.

Funnily enough I heard from Moog yesterday on this and they did confirm they're aware of the issue and plan to fix it in a future firmware update. No ETA though - which is a bit disappointing - 3 years is a long time to fix a bug.

Re: Subharmonicon and DFAM out of sync

Posted: Mon May 17, 2021 7:30 am
by joeel
Just to be clear - I believe this is an issue with the Subharmonicon SEQ1/2 CLK outputs. It happens even if DFAM is not involved. Try for example patching SEQ2 CLK to TRIGGER on Subharmonicon only and you will eventually get this bug there too.

As for your question PaulKaul - midi clocks generally work fine for me

Re: Subharmonicon and DFAM out of sync

Posted: Mon May 17, 2021 9:03 am
by Mr Chitlun
Hi all. Newbie here… Just to confirm Joeel’s post, I have tried the SubH Seq 1&2 outs with a couple of other synths and there is a distinct delay when dividing the clock. Absolutely bang on when there’s no division but as soon as I divide, it goes off. This is definitely not exclusive to the DFAM.