hey guys, i did a nice track yesterday with my octatrack connected to my prophet. Midi out of OT into Midi in of Prophet and the other way around. i saved all the samples onto my cf card and saved the project. after ,i turned off my prophet while my song was still playing on the octatrack (stupid idea apparently). the moment i switched it off all the tracks of the OT went silend except track 4 for some reason. i could see all the samples and all the trigs but i couldnt even preview them on any of the tracks except track 4. i didnt use scenes yet so that cant be the problem. i checked if it had anything to do with parts but i dont think so. did this ever happen to you!
grateful for any advice, thank u !
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Did you have a saved version or did you lose some of your work? Which unit is the sync master and which is set to external sync? There is some amount of power that goes from the MIDI out (which is why it can power a WIDI jack) depending on the unit, so it could have been a surge when turning off the Prophet.
And now when you only power up the Octatrack, what’s going on?
Did you accidentially change or reload the part on the Octatrack?
The only way a synth connected via midi should be able to do anything to the Octatrack is via midi cc or program change.
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What happens when you turn the prophet back on?
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All midi in ports are opto isolated so no power surges. The only thing the prophet could have done is send some pc or cc data as @Schnork said
Most likely the OT wigged out in some way when it received that data packet
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You could check if/what the Prophet sends over midi when you switch it off (freebie midi monitor software/plugin if your DAW doesn’t have one). I can’t really think of anything that could happen that could destroy a project on the Octatrack.
The Octatrack won’t like it if you switch it off while it’ s writing to the card, that’s why there’s a card activity LED on the frontpanel, but switching off a synth connected via midi shouldn’t be able to do any harm.
You said you switched the Prophet off while the song was playing - is that the sequencer or song mode/arranger?
And was the card activity LED still flashing when you turned the synth off (was it within 1-3 seconds after you saved the project on the Octatrack)?
Are you using the og Elektron power supply?
Are you the first owner, no one has opened it or tried to repair anything?
My Octatrack doesn’t like it when I save parts while a pattern is playing, a couple of times it did crash while saving. It’s really rare and I haven’t figured out what might lead to it crashing as most of the time, saving parts works just fine and seems like I’m the only one with that issue. At least I haven’t seen anyone else mention it. So Octatrack can be a bit finicky under certain circumstances…
Please describe your audio routing. In detail.
Are we 100% sure that the tracks didn’t stop playing because they were midi tracks and were still playing the synth live, with audio routed into the inputs, at the time that you shut it off?
Maybe you took samples but did not actually change any track info other than the 4th track which you mentioned?
What is on the 4th track, a prophet sample? Or some other sample?
nothing changed, the project is still screwed. i actually was working on a new part , but never had any issues like this when changing parts…
i have all my gear routed seperately into my fireface800 that i control with totalmix. i connect one output of the interface into the OT and keep monitoring off for the inputs. at the moment i switched off the prophet all the midi tracks on OT were muted and im 100% sure that it was recorded audio and not coming from the synth. On track 4 i had just a percussion one shot on a slot machine and as i mentioned when going into the sample pool i actually could preview all of the samples i used in the project BUT ONLY ON TRACK 4!
thank u, i will check when im back at the studio! it was just the sequencer playing… about the LED im not sure, wasn’t really paying attention to it at that moment. i use the elektron power supply that came with it my OT MK2 and im not the first owner, so maybe theres a possibility it was opened once. but judging from the outside i got it in really solid condition.
nothing. that was the first thing i tried…
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