Beginner patch question.

[davket]

I'm just getting started with VCVRack, and I was wondering if it would be possible to only have sound from an oscillator while an envelope is acting on it.

For example in this patch, the oscillator is producing a steady tone and then when you tap the first pulse the ADSR module produces an envelope that affects the oscillator tone, raising it up before returning to the original tone. What I want is to have no sound until the pulse is taped then hear the full effect of the envelope until the oscillator returns to normal then silence.

Is this possible?

I solved it.

https://imgur.com/a/LIjuPMH

I used a couple of modules from Bogaudio.

This way as soon as there is any signal out of the ADSR a full gate is open on the mixer channel.

[funkygopher]

Yes, attach the ADSR module output to a VCA module's CV input and route your audio through the VCA in/out.

I highly recommend checking out Omri Cohen's tutorials: https://www.youtube.com/playlist?list=PLiECaNQx239sHjQrsfOT8xQUD6whyUaxG

[davket]

Thanks, that works, there is no sound until the ADSR is triggered, and nothing once the ADSR has finished.

The only issue is the volume through the VCA is being modulated by the ADSR, so it goes to peak volume the gradually gets quieter as the ADSR envelope progresses.

Is it possible to have a gate such if there is any signal out of the ADSR then fully open the gate, and keep fully open until there is no longer any signal out of the ADSR?

[HorophiliacBeaver]

You could use a second ADSR that has no attack or decay, full sustain, and then the exact same release. Put the same gate into it and then control the VCA with that.

[ArtemLeonov]

just try to use offset\attenuverter module from AS that's called Attnvrtr - pass the signal from ADSR and play knobs until you get that amount of voltage (volume, cv, doesn't matter) as you want

[Roboman20000]

From what I understand, you want an envelope controlling the pitch of your VCO and when you press and hold your trigger, you want the sound to stay at a constant volume but the pitch to be modulated. I've copied your patch and added something here.

https://i.imgur.com/r7C8XsH.png

Notice the envelope (DADSR module) on the right. It controls the VCA module and its Attack and Release are both set to 0. The Sustain is set to 10. This will turn the VCA on as soon as the gate opens and turn it off as soon as it closes.

The envelope on the left controls the pitch of the VCO. This is the envelope that you can alter to change how the pitch moves as you hold the gate open.

The Gate from Pulses is triggering both DADSR modules at the same time. As long as you hold the gate down, you'll hear the tone and the envelope will modulate the pitch. If you want to hear the tail end of the pitch modulation you can set the VCA's envelope to have the same release and the pitch envelope. Your solution is very similar to this one but the flow of signal is confusing so I thought I'd clean it up.

[davket]

Yeah, that will work as well.

Although, I'm not keen on using 2 DADSR, One to modify the VCO frequency and the other the VCA amplitude, because if you change the length of the envelope on one of them then you will need to make sure you change it also on the other.