CV Inversion Help for stereo gristleizer build

[DRodriguez]

I'm in the process of planning out a stereo gristleizer for keys. I've figured out how to add link buttons to all the settings, and how to link the CV to sync the lfos. But then I thought how much cooler it would be if I could invert the CV to get them perfectly out of sync.

Is there a simple way to invert the cv to get it perfectly out of sync. Where should I research further?

I can't get details on what the cv levels actually are until I build it, since I can't find documentation on that anywhere, but I imagine it is 0-5v.

I'm OK at wiring and simple mods, but actual electronics work like this is beyond my level of knowledge.

Thanks!

[crochambeau]

Here's a bit of a cheat sheet:

www.ti.com/lit/an/sloa097/sloa097.pdf

This outlines scaling of the DC range and gain/attenuation per stage, even though they indicate it's easy on math it's still a bit involved, having specific criteria that need be met would make assistance a touch easier.

To invert the CV I would simply build an inverting opamp buffer that you can either hard wire/switch/patch in.

[DRodriguez]

Thanks! Time to do some reading

[eatyourguitar]

you can get the min and max voltage by scoping the lfo. that should give you all the information you need. supply voltage matters. supply/2 vref. inverting opamps are the most used thing in electronics. learn it.