u-he

muleskinner · Post by **muleskinner** » Wed Oct 12, 2011 8:56 am

Hi,

I have something I'm trying to achieve in Zebra that I'm finding difficult.

First, I have two VCF filters. I want to control their cutoff via the same X/Y pad so they remain the same. OK, that bit's easy.

Next, using another X/Y controller I want to further modulate the two filter's cutoff frequencies so they move away from each other. This is the bit where I'm having problems!

It seems if I use another X/Y to directly control the cutoff this doesn't work as the X/Y controls are all 'absolute', ie if you have two controlling the same parameter the second effectively cancels out the first. Please correct me if I'm wrong on this, it doesn't seem to be working as I'd intended anyway (at least that's what my ears are telling me)!

So, the best solution I've come up with it to attach an X/Y to the modulation amount controller on each filter. If, for instance, I set the modulation source to modwheel, set my modwheel on max, then tweak the X/Y it seems to have the effect I want. This isn't ideal though as I need the modwheel set to max for it to work.

So...

1. Is there a 'static' modulation source I can select that will always give the max amount (a 'control voltage' type of thing I guess)?

2. Is there a better way of achieving what I'm trying to do?

Thanks in advance...

CandeFan · Post by **CandeFan** » Wed Oct 12, 2011 11:27 am

Like this? http://db.tt/FstxK2Kf
Or even easier with xmf!!!

Urs · Post by **Urs** » Wed Oct 12, 2011 11:34 am

Hi, I just checked and it works very well here:

http://www.u-he.com/downloads/Zebra/XYC ... Spread.h2p

X1 controls Cutoff of two filters, X2 controls their spacing.

VCF1 is panned hard left, VCF2 is panned hard right to make it easy to hear

Let me know if you found something else that breaks this functionality.

Urs

muleskinner · Post by **muleskinner** » Wed Oct 12, 2011 1:16 pm

Thanks both for the replies - this patch works fine. I don't know what I was doing wrong - case of not seeing the wood for the trees!

Also thanks for the prompt to look further at the XMFs - I didn't realise the routing options on these were so flexible.

cheers

Howard · Post by **Howard** » Wed Oct 12, 2011 1:37 pm

muleskinner wrote:Thanks ... for the prompt to look further at the XMFs - I didn't realise the routing options on these were so flexible.

XMF modes mini-tutorial:

all other tutorials:

Zebra2 User Guide:
http://www.u-he.com/downloads/Zebra/Zeb ... _Guide.zip

u-he

KVR Audio

A Question on X/Y and Modulation in Zebra