Komplex 64 step sequence timing issues
#1
Hi All,

I am trying to chain the 4 sequencers together to achieve a 64 step sequence.  I am using Logic to send MIDI clock.  MIDI clock is sent to the first sequencer and then patched down the chain so they are all synced. All four sequencers are in one-shot mode and are triggered by EOS->Start. 

The problem is: there is a slight delay from one sequencer to the next however, meaning that the 64 step cycle does not align to project, with each 16 steps being either a bit behind or ahead of the tempo.  

I have experimented with both lit and unlit for EOS mode and this doesn't correct it. 

I hope I have explained this clearly; am I missing something, or is this a Logic-Komplex MIDI clock issue?
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#2
Hello Scarab.
can you give a look to this thread?
https://community.koma-elektronik.com/thread-432.html
there is a screenshot posted from Quolcat that shows how to perform what you want to do.
That might help i think.
JJ
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#3
(02-21-2025, 09:18 AM)Jackieflipflop Wrote: Hello Scarab.
can you  give a look to this thread?
https://community.koma-elektronik.com/thread-432.html
there is a screenshot posted from Quolcat that shows how to perform what you want to do.
That might help i think.
JJ

Hi Jack, thank you for your reply.  I did search and find that thread, and after your link I went through and carefully read it again to make sure I didn't miss something, but I believe having read it again that my issue is separate from the one described in that thread.  When running a 64 note sequence, when the pattern moves from one sequencer to another, it does not slow down or change tempo in any way.  What happens is that there is just a slight pause before the next sequence starts, so the 64 steps don't align to the tempo of the project.  In other words, there is a little space ever 16 steps.
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#4
Just wanted to bump this; can anyone account for the slight gap between each 16 steps?
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#5
Drive all sequencers from the master MIDI clock in loop mode, and use Reset pulses to line them up every 64 steps.
Instead of EOS chaining, use a clock divider (÷16) from Logic to “select” which sequencer should be active, so they all run in sync but only one outputs at a time.
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#6
(02-14-2025, 07:31 PM)Scarab Wrote: Hi All,

I am trying to chain the 4 sequencers together to achieve a 64 step sequence.  I am using Logic to send MIDI clock.  MIDI clock is sent to the first sequencer and then patched down the chain so they are all synced. All four sequencers are in one-shot mode and are triggered by EOS->Start. 

The problem is: there is a slight delay from one sequencer to the next however, meaning that the 64 step cycle does not align to project, with each 16 steps being either a bit behind or ahead of the tempo.  

I have experimented with both lit and unlit for EOS mode and this doesn't correct it.  ragdoll hit

I hope I have explained this clearly; am I missing something, or is this a Logic-Komplex MIDI clock issue?

It sounds like the issue might be related to MIDI clock transmission timing between the sequencers, especially when chaining multiple devices. Even though you’re sending the clock from Logic, there could be a small latency introduced at each stage of the chain. This might cause the slight delay you're hearing between sequencers. One thing you could try is adjusting the buffer size in Logic or looking into whether each sequencer is receiving MIDI clock at a slightly different rate due to how the signal is routed. If you’re able, testing with a direct connection between just two sequencers might help pinpoint whether it’s the chain causing the drift, or if it’s something to do with Logic’s handling of the clock signal.
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