Looks about right
EDIT: Except that I want those peaks to get smaller and smaller because if the cutoff frequency is getting lower, but the LFO is modulating at the same amount…
I must say I cannot follow what you are exactly trying to achieve. Maybe you can describe how you would do that on every other synth.
Here’s a photo of a Roland Juno-60. Under the VCF section is a slider for ENV amount (how much the ADSR envelope affects the VCF) and another slider for LFO amount (how much the LFO affects the VCF)–both of which can be used at the same time to varying degrees (along with keyboard amount too of course).
Every single synth I’ve ever played has had this feature. On my desk there sits a Behringer K2–a clone of the Korg MS20. Under cutoff frequency modulation you have two knobs: One for LFO and one for envelope generator…But I can’t do this in modular 
Patch the output of the ADSR to an VCA or any attenuator and from there to the filter CV. ENV amount in nothing more than an attenuator.
But I also want the LFO to affect the same Filter CV!
It’s almost like I need a filter module that has two CV inputs for the frequency. Does such a thing exist?
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just gotta mix the signals… no idea why this discussion seems to be becoming so complex ¯_(ツ)_/¯
*scale knob = amount ctrl on your juno
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If there is it would have the same effect of combining both inputs in a mixer or as shown above summed.
Its almost like you want to move the frequency knob while an ADSR is patched… If you were to physically move the knob you would get the effect? Luckily there is a module that allows for that sort of thing in PackOne called Map.
that’s it thank you! I’ll play with this a bit later. Right now I’m a bit tuckered out as I’ve been messing in VCV for hours
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Yeah, Vult Freak filter, it’s in the Vult Compacts plugin I think, it has 3 cv inputs on it, it’s amazing and well worth the price for countless reasons. But for free, just combine your separately attenuated (using a vca-1 or attenuator of your choice) lfo & adsr signals with a unity or sum module like everyone else is suggesting and you get the same thing as 2 cv inputs. you can even modulate the strength of the lfo with the adsr using a vca. And some adsr modules have trigger outs at each individual stage that you could use to have the lfo going off only during the decay/sustain/release portion of the envelope. You can seriously do anything thing you can dream of with this stuff.
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This is what I’ve been promised! So you can see why I was utterly baffled that I couldn’t just patch two modulation generators into one CV input…
Still wrapping my head around using attenuators and summing modules and whatever else. I mean I still don’t really get gate stuff? I have to remind myself how it all works every time.
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Well , with hardware modular you can’t plug two cables in one Hole 
It’s like mixing audio, imagine having a guitar line, and a bass line, you want to listen to both, you put them in a mixer. Same stuff with CV : you have your lfo, and your ADSR, you want to modulate with both, so you mix them 
that’s what we mean by summing.
On a synth, when you press a key, two CV signals are outputed : A V/OCT signal, that will tell the OSC what note to play, and also a gate. The gate usually goes to the amp envelope and triggers it (making you hear a sound). Withouth amp enveloppe you would always hear the oscillator (they always keep droning), but problem is amp envolope is always closed unless trigerred. That’s why you have gate
Yup i understand that, your best friend is your memory, try to remember how your favorite Synths work, and try to reproduce their signal chain 
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maybe this is a possible solution:
the clock or a midi gate triggers the ADSR and the resets the lfo, with the polarizer you set the modulation of the lfo on the ADSR.
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Here’s I think the solution you want. I have two ADSRs. The first is the overall filter envelope. The second is the LFO envelope. You want the LFO to start later in the note, so there is a (in this case fixed) delay on the gate signal which triggers the ADSR.
The first ADSR just goes into the mixer of the final signal The second ADSR drives the VCA which modulates the LFO For clarity I have shown the two intermediate signals here
I tried to do this all with core modules (I used a little utility clock but that could be any gate source). Another alternative is to use an LFO which has a built in envelope. The surge-rack LFO has a DAHDSR envelope on the LFO itself which responds polyphonically to triggers. This may be more useful to you. Other LFOs may have the same.
Hope that helps!!
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This is cool and makes sense. I’ll have to screen shot a patch I’ve made, but I have the gate of a sequence going to an amp envelope going to an oscillator and when I stop running the sequence I still hear the oscilator ringing out and I have to turn the mix down… Why might this be?
Edit: Also though I appreciate all the responses, I think we’re overcomplicating the solution to my problem. It seems summing an adsr and lfo makes the most sense to me…
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I think you need to multiply the adsr and the LFO. Just adding them will leave the oscillator throbbing all the time.
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I did some research and this signal path is essentially correct. 
My patch above was simplified as I didn’t use level a level controls mixer.
VCO -> VCF -> VCA
ADSR -> VCF & VCA
MODULATION = MIX of LFO (or other thing) & ADSR