CV IN not working

[Steve Modana]

Hello, on my Prophet 10 rev4 I can't get the CV IN working. I'm connecting the CV output of a LFO in oneshot mode into the CV IN on the prophet. When I now trigger both, the desired pitch mod doesn't appear on any of the voices on the prophet.

When I plug the same patchcable right into let's say the Moog Matriarch, it works right away. Who could help me out here? (I often want to add a very quick pitch mod attack to a bass patch for snappiness).

[LPF83]

Hello, on my Prophet 10 rev4 I can't get the CV IN working. I'm connecting the CV output of a LFO in oneshot mode into the CV IN on the prophet. When I now trigger both, the desired pitch mod doesn't appear on any of the voices on the prophet.

When I plug the same patchcable right into let's say the Moog Matriarch, it works right away. Who could help me out here? (I often want to add a very quick pitch mod attack to a bass patch for snappiness).

Have you tried adjusting CV input scaling steps using CV calibration mode mentioned in the manual (p.54)?

[Steve Modana]

Yes, I've been through the CV in/out MENU with various settings. Can't get it working. I contacted the support.

What I found is, it seems like the Prophet does only read CV IN when a trigger at the GATE IN at the same time is received. They don't seem to work independently.

[dr.sax]

What I found is, it seems like the Prophet does only read CV IN when a trigger at the GATE IN at the same time is received. They don't seem to work independently.

That makes sense. Since it triggers a voice it needs a start and a pitch.

[Steve Modana]

Yes, but the "start" needs to be GATE IN and not MIDI.

[Steve Modana]

To clear this up, I write my current findings after writing with the Sequential Support.

- CV IN is always quantized to semitones, so an additional ENV or LFO doesn't behave as expected
- CV IN only processes incoming voltage, when a note via GATE IN is triggered (not MIDI trigger)

The solution for my case: I wanted to add a very short env sweep down to the target-note to give the attack a "smack". I did that now simply via MIDI in Logic via the MIDI Plugin "Modulator". That gives you a basic LFO or ENV for those cases.

[Analog Prophet]

- CV IN is always quantized to semitones, so an additional ENV or LFO doesn't behave as expected

Ah, there is a quantizer after the CV in, didn’t know that - good to know.