12v click triggering my OS envelopes??

hello forum people

I’m running a 12v, 900 millisec output from the ‘click’ out on the back of my oberheim DX drum machine
into the ‘ENV gate’ input of my OS voyager, to make a voyager arpeggio sequence in sync with the DX.
to be exact I’m running the DX click output into a ‘mult’ on my VX-351 and then using the ‘mult’ to control the ENV gate and the S&H gate at the same time.
everything seems to be fine when controlling the S&H gate, not the same with the ENV gate.
The DX click triggers the envelopes on the voyager, so the ext gate apparently works, but the envelopes don’t go through all of the ADSR stages.
I mean even if I raise the decay and sustain knobs on both filter and amp envs I only hear very short notes.
it seems that only the release of the envelopes is effective, but not the decay and sustain.

I thought about using an attenuator to reduce the 12v click to somewhere near 5v, but that did not solve the problem.
so maybe the problem is the 900ms lenght of the DX click output which could be a bit too long to properly trig an ADSR envelope?
do you think this could make sense? if yes, would there be a way to ‘gate’ the click signal, so to shorten it?

cool, have a nice day
ed

Think of your gate (900ms is more a gate signal than a trigger) as holding a key for 900ms and releasing. A trigger is ‘usually’ a very short pulse, just a couple ms. If your envelope AD times are longer than the 900ms gate, you won’t hear it. The envelope doesn’t get a chance to build up to the sustain level before the gate drops and you go into the release phase. You want short AD times, Sustain up high and Release to suit the sound. (make sure the release switch is on.)

ok, it makes sense to me. would there be a way in your opinion to shorten that 900ms time to something like a short trigger signal,
through some sort of control processor?with a CP-251 maybe?

The only commercially available module that comes to mind is the Q-118 instrument interface from Synthesizers.com. But you need a power supply and case for it to use it. You could build a device that sent a pulse on the rising edge of an input signal. But I’m not an EE and couldn;t give you the details.