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 Forum index » Clavia Nord Modular » G2 Patches - Experimental
Logic module samples
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ian-s



Joined: Apr 01, 2004
Posts: 2574
Location: Auckland, New Zealand
Audio files: 42
G2 patch files: 608

PostPosted: Wed Dec 19, 2007 4:04 pm    Post subject: Logic module samples
Subject description: what are they used for?
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I read sometimes that the logic modules in the G2 are a mystery to some patchers. Probably because this type of module is not common in real modular synthesizers.

I thought it might be helpful to have a thread on logic modules where people could post examples of how they use the modules, along with explanations.

To start off, here is a simple sequencer patch that I wanted to sound 'polyphonic' or have voices overlapping, without using a poly VA. This patch could be placed in the FX area of a slot for example, if you needed the four poly voice areas for other parts.

In this case, I'm using an eventseq module to shape the envelope gate signal (see GateGen), the rndTrig supplies variation to the gate length.

The FlipFlop and Gate module are configured as a voice allocation controller.

The flipflop is in S mode (the second option) so the two opposite outputs 'flipflop' on each gate rising edge. The two AND gates take the same gate signal and produce alternating gate signals for each voice. The S&H modules ensure that the pitch control does not jump during the envelope release stage.

One nice side advantage of this over a standard 'MIDI routed to poly VA' approach, is the ability to easily introduce subtle variations to each of the voices.

Edit: The same result can be achieved with a clkdiv driving a pan module, actually using a little less mem%


LogicSample01.pch2
 Description:
flipflop and AND gates for voice allocation

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 Filename:  LogicSample01.pch2
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darwen



Joined: Jul 20, 2006
Posts: 33
Location: france
G2 patch files: 5

PostPosted: Thu Dec 20, 2007 9:35 am    Post subject: Reply with quote  Mark this post and the followings unread

Yes it's a very good initiative , thanks g2ian. Very Happy
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