[S37] Arpeggiator SYNC bug

The Moog Forum Moog Beta Forum
1

With Firmware 1.2.0 I’m experiencing the following:

  • Have a preset saved with a arpeggiator/sequence and SYNC set to ON.
  • Load that preset
  • MIDI Clock in → sequence/arp is playing when key is pressed [OK]
  • No MIDI Clock in → no sound is playing when key is pressed [OK]
  • Switch SYNC to OFF → no sound is playing! [NOT OK!!!]
  • Tweak the RATE knob → all of a sudden sequence/arp is playing

It seems that for a preset that was saved with SYNC ON, switching SYNC to OFF somehow leaves the Sub 37 with no RATE information.

2

I tested it, and here the behavior is a bit different:

  • Push sync OFF and set rate to min. position
  • Play, it will play using the rate set by the rate control
  • Push Sync ON and set the rate to max. position
  • Load Ableton and play the session, play the synth. It will be synced by the DIV set by the Rate control
  • Push Sync Off, it will now play at the rate physically set by the knob and not by the rate set before setting the DIV value

It seems that the desired behavior should be maintaining separate values for the knob, one for Rate and one for Clock DIV.


P.S

Are you sure the sound completely stops, and not modulated by an extremely slow rate ?

3

Hi Gil, thanks for your answer.

The behavior you describe (at least how I read it), is actually what I’d expect to happen. And to my understanding, the arpeggiator CLOCK DIV and the RATE are stored separately, otherwise it wouldn’t be possible to use the internal clock and store an ARP CLOCK DIV for that, would it?

What is reproducible for me is:

  • No MIDI Clock from outside coming in
  • Store a preset with some Sequence and RATE 120, CLOCK DIV 1/16, and SYNC OFF
  • Set SYNC ON, and store the preset again
  • Switch to some other preset and back to this one
  • Press a key —> no sound (none, whatsoever) [OK]
  • Set SYNC OFF
  • Press a key → sequence plays [OK]
  • Set SYNC ON
  • Press a key —> no sound [OK]
  • Set SYNC OFF
  • Press a key —> no sound [Not OK!!]

In this state, the Sub 37 is sending MIDI Clock events, but can’t use it for itself.
It seems that somehow the Sub 37 can get confused about the sync tempo to use.


BTW, this behavior is the same on two different Sub 37 units, one hooked up to the computer via USB, the other hooked up stand alone via MIDI.

4

This can be taken to a much more simple scenario -

On a sequence preset, press SYNC ON, press SYNC OFF - no sound. Tweak RATE → sound.

Anyway, it’s reported as a firmware issue.

5

Thank you very much!

6

Thanks you !