Octatrack mk2 with Micromonsta 2

Ask on the Micromonsta 2 thread…

Sorry to ‘harp’ on about this MM2. I can’t find the reason for the OT not playing back in the same key, the timing is dubious too. I’ve got the MM2 in bi-timbral mode. The second channel is working with an issue. I don’t have any LFO’s or Transpositions on either of the tracks G

@Graham sorry for your issues, I don’t exactly see what they are.
I can make some bitrimbal test if you wish. Could you describe how to reproduce your issues ?

My connections are
DAW CLK SYNC > USB AR > AR MIDI OUT / KS37 > KENTON MERGE
MERGE > OT MIDI IN
OT MIDI OUT > CME THRU 5 IN
CME THRU > MM2 / OTHER SYNTHS

The input sounds fine on both channels.
On playback however Chn 1 the pitch and placement of notes
is harshly jumbled and un recognisable.
Chn 2 is mostly correct though some latency is apparent .
Thanks G

I’d try OT out > MM2 in to check if your midi config isn’t the culprit…

Made no difference. I tried a different pattern, this time everything I played in was dropped by a whole tone. I loaded another different project after this and it worked normally, playing back accurately and in tune.
Again, I started a simple MIDI only sequence. It was initially good then the pitch started to wander out of tune after a few runs. I don’t think it’s the THRU box as the other synths are working as expected.
I’ve had a similar issue before and just deleted what had become a corrupt project. I’ve experienced a few system crashes too. Is this normal ? G

OT freeze ? Midi loop, feedback, or eventually USB still connected ? (problematic with Mac sometimes)

The symptoms do suggest a loop or feedback somewhere. I’ll try later with the USB disconnected. Cheers G

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Highly recommended especially with a mac.
I’d try this first to identify better the issue.

USB can manifest in all kinds of ways, and I have an ageing Mac.
Not the ideal combination ?
The OT USB is purely for data transfer only. Also the MM2 has an independent
PSU and no USB connection…
However… I switched off the MIDI CLK and TC OUT from the DAW sync
to the OT, and all is working.
Human error can be embarrassing.
The other thing I keep doing is deleting and entire pattern rather than just the MIDI track.
No hope but I don’t let it stop me, thanks for helping me out :slight_smile:

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Glad you find a solution !

Yes but it is a common bug.
No need to keep USB plugged if it happens…

Thought I’s just add, incase someone else has a similar issue…
The transposed playback on the MM2 was being caused by the OT MIDI ARP, despite the mode being OFF.
It certainly had me on the run.

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Ah yes it is independent from arp, good thing.