So I have a problem that most likely has an easy solution. I use a Little Phatty CV outs to control a Rogue. At times I want to play the Rogue without disconnecting it from the LP. The problem is, the LPs pitch out CV is always present, whereas the gate is not. Since that pitch cv is always present, i am unable to play the Rogue while connected. This is because the input Cv(from the LP)seems to be summed with the Rogues internal keyboard CV. This messes with the tracking. A possible solution seems to be an inbetween unit that uses the voltage from the gate to contol an electronic switch to allow the pitch cv to pass. Therefor, the LPs cv will only be present in the Rogue when a key is depressed on the LP. So my question is: Is there anything out there that does this? Or am I missing something obvious? Thanks
The pitch CV is always present at whatever level depending on key last played. (It will degrade over a long time period on some machines.) The gate is only present when a key is down. (A trigger is only a short pulse at the key down event)
You could build a box to do what you ask, but it will have strange effects on your playing! Your pitch would go to 0V everytime you let go of a key. The envelopes on the synth would still be running and the pitch oscillators would be forced to their lowest note while the envelopes were still holding the VCA open.
The only 2 simple solutions I can see are:
1 Unplug the Pitch CV from the Rogue when you are playing it.
2 mount a switch inline with the Pitch CV to manually disconnect it when needed.
You could route the pitch cv to a cp-251 attenuator, connect pedal to attenuator and heel it when you want to get rid of CV, right?
No. The attenuators are not Voltage controlled. Besides, it would play hell with scaling.