Seems basic but I can’t for the life of me work out how to set this up.
I’m after the behaviour as found on the Roland classics eg Juno 60 or SH-101 (or pretty much any analogue/virtual analog tbh) in that there’s a control for the filter cutoff point and a separate parameter that controls the amount of envelope added without changing the base cutoff point.
Obviously we have the Input paramater on our filter modulation lane but separating out the two is eluding me.
Any ideas?
Not sure exactly exactly what you’re after since I haven’t used either of those synths, but I would experiment with adding the operand modulation device, play with device order, and the modulator maths (on the left hand side of the device)… I’m sure you’ll be able to emulate the behavior you are after. Modulation sets are pretty powerful but sometimes not intuitively obvious
Sounds kind of like you’re looking for multiplication vs addition. Operand should be able to help
It just needs a little more complex thinking when using operators in the modulation.
You have to treat cutoff and envelope offset from it indiviudally. I.e. use the cutoff control as usual, and make the envelope add to it, or the other way round.
For example with adsr, you will want to use the adsr in multiply mode, and then add an operand to it afterwards from 0…0.5 or so. Then with the base cutoff value you can map to a macro and use it as envelope depth (it will be multiplied by the envelope, and thus it scales the envelope), and the operand that adds to it use as a base cutoff control for another macro.
See here, this instrument does it just like that, with additional velocity envelope scaling:
My Little Chip303.xrni (3.4 KB)
Look into the modulation set and the macros to see.
ah you star thanks Guz. funnily enough a 303 type thing was exactly what i was working on.
that all makes complete sense though. and we can even add velocity - result.
like you say Zen i knew it had something to do with the operands but after 40mins of trying i thought i’d check if someone else knew better. they usually do…
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