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 Forum index » Clavia Nord Modular » Nord Modular G2 Discussion
Serial / Parallel Filters
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heid'



Joined: Aug 03, 2007
Posts: 51
Location: Avignon (France)
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PostPosted: Mon Dec 24, 2007 6:11 am    Post subject: Serial / Parallel Filters
Subject description: Switch between 2 routings
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Hi',

I try to build a synth; this synth uses 2 oscillators, 2 filters and would have two signal routings :

First (serial) : oscillators 1&2 are mixed together, the signal go in the first filter, then, it goes to the second filter.

Second (Parralel) : Oscillator 1 goes in filter one; osillator 2 goes in filter 2. Then, both are mixed.

I try to use the switchs modules (2In / 2 Out) but it's a complex patch...

Thank you for your help if you have any idea, and sorry for my bad english Wink
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Wout Blommers



Joined: Sep 07, 2003
Posts: 4521
Location: The Hague - The Netherlands
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PostPosted: Mon Dec 24, 2007 8:03 am    Post subject: Reply with quote  Mark this post and the followings unread

Indeed, you'll need Switches and Mixers and use the Value Switch and just one normal Switch, which give a control value of 4 units at the control out. The Value Switch will work at value 4 units, of course.

I'll try later...

Wout
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heid'



Joined: Aug 03, 2007
Posts: 51
Location: Avignon (France)
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PostPosted: Mon Dec 24, 2007 8:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Thank you Wout Blommers Wink ; I've tried with switches and mixers but I don't find the patch ...
Rolling Eyes
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Wout Blommers



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Location: The Hague - The Netherlands
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PostPosted: Mon Dec 24, 2007 8:44 am    Post subject: Reply with quote  Mark this post and the followings unread

I hope it work, because I have no G2 connected at the moment...

The crux is in the Control Output of the HeadSwitch. When set in Out2 it sends 4 units out.
All Switches will react and go in the second position.

Position 1 is the serial Filter set up.
The signal enters Mix1, is connected By Filter1Switch to the Filter1 Input.
Filter1 is connected to Input1 of the Filter2Switch and into Filter2 and connected to the first position of the EndSwitch.

Position 2, the parallel set up.
Osc1 Output2 is fed into position Input of Filter1Switch and into Filter1, which is connected to Mix2 Input1 (Filter2Switch Input1 isn't active Smile
Osc2 is fed into Filter2Switch, which is connected to the second Input of Filter2.
The EndSwitch has only Filter2 Output (serial) or in second position the Mix.

How about this?

Wout


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heid'



Joined: Aug 03, 2007
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Location: Avignon (France)
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PostPosted: Mon Dec 24, 2007 9:28 am    Post subject: Reply with quote  Mark this post and the followings unread

Excellent ! You are very strong ! I've now to understand how your patch works, because it's what I was looking for.

Thank you very much ! Wink
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Wout Blommers



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PostPosted: Mon Dec 24, 2007 9:46 am    Post subject: Reply with quote  Mark this post and the followings unread

The idea is that the basic modules, the Oscillators and the Filters need two different routings for the Output or the Input. You have to thank Rob Hordijk for these possibilities, because he basically designed the Switches to the G2 to create such patches.

Wout
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heid'



Joined: Aug 03, 2007
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Location: Avignon (France)
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G2 patch files: 3

PostPosted: Mon Dec 24, 2007 10:03 am    Post subject: Reply with quote  Mark this post and the followings unread

I didn't know the fonction of the "Valsw2-1" and "Valsw1-2", but I think I begin to understand. In fact, we have 2 mixers : one for the serial routing, and the second for the parallel routing. I find that the choice beetween both routings is very usefull to change the timber of the sound.

Thank you Rob Hordijk for these modules ! Wink
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Wout Blommers



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PostPosted: Mon Dec 24, 2007 10:16 am    Post subject: Reply with quote  Mark this post and the followings unread

Of course you'll need two mixers, because in principle you can't change the order in which the modules are affecting the signals. A Reverb just after the Oscillators is a lot different then placed at the end of the line...
The second mixing was in your concept, though.

To find out what modules are doing I advise you to read the Manual Smile
And discuss it on the forum, because these cases are much more interesting then the Manual.

Wout
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heid'



Joined: Aug 03, 2007
Posts: 51
Location: Avignon (France)
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PostPosted: Mon Dec 24, 2007 10:37 am    Post subject: Reply with quote  Mark this post and the followings unread

Yes, I've the manual, but it is very "short" on these modules; nothing in fact. 3 lines on the "Valsw", it's not enough to understand.

This forum is a good source of help ! Wink
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dasz



Joined: Oct 16, 2004
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PostPosted: Wed Dec 26, 2007 3:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

one thing to watch out for and correct is inserting amp modules to balance the A->B mix. a simple crossfade module alone won't do it. otherwise you have different volumes fighting for volume when you cross fade.

I just got nipped badly by one recently, but it is due to crazy osc amplification on the A side, while the B is quite pure and soft ... crossfading must be corrected before (the crossfade) and after (amp boost, even though this keeps raising the noise floor)

I love the G2.
/Dasz

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PostPosted: Wed Dec 26, 2007 3:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

Wout Blommers wrote:
You have to thank Rob Hordijk for these possibilities, because he basically designed the Switches to the G2 to create such patches.

Wout


just when i thought i couldn't worship rob anymore

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