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 Forum index » Clavia Nord Modular » Nord Modular G2 Discussion
Please help with Variations switching from external source
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Tom_LJ



Joined: Jun 28, 2020
Posts: 6
Location: CZ
G2 patch files: 2

PostPosted: Sun Jun 28, 2020 4:00 am    Post subject: Please help with Variations switching from external source
Subject description: Patch for controlling Variation switches from Octatrack
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Hi, I've put together a patch to switch G2 Variations with the Scene switches on the Elektron Octatrack in order to sync / combine scenes on the OT with variations in G2 patches. It MOSTLY works but here's the problem:

The OT scene switches A and B transmit CC 55 and 56 respectively, but they only transmit values 0 to 15. I've tried to fix this using level multipliers and mixing the outputs of the value multipliers for CCs 55 and 56. It works when using just A or B, but when B is used, Scene A cannot return the value to 0 (i.e. Variation 1 on the G2), but only one or two Variation slots lower than the last entered value from Scene B (CC 56). I'm sure there's a way to fix this, and could well be a much more elegant way of achieving what I'm trying to do!


OT - G2 variation switcher.jpg
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OT - G2 variation switcher.jpg



OT Scenes to Vars and Morphs.pch2
 Description:
Set to receive on Ch 1 from OT and switch variations in Slots A&B

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 Filename:  OT Scenes to Vars and Morphs.pch2
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Blue Hell
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Joined: Apr 03, 2004
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Location: The Netherlands, Enschede
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G2 patch files: 320

PostPosted: Sun Jun 28, 2020 5:50 am    Post subject: Reply with quote  Mark this post and the followings unread

Hello & welcome Tom_LJ

So, if I understand correctly .. each of A and B has 16 values .. so you have 256 combinations (0 - 255) .. then the question becomes how do you want to map that onto the 8 (0 - 7) G2 variations?

Straightforward would be something like ( 8 * (16 * A + B)) / 256

but then for sending it out properly to CC70 these 8 steps should be multiplied by 128 / 8

So we then get (128 / 8 ) * (8 * ( 16 * A + B) / 256) or: 8 * A + B / 2

Anyway .. what would you like your mapping to be?

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Jan
also .. could someone please turn down the thermostat a bit.
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Tom_LJ



Joined: Jun 28, 2020
Posts: 6
Location: CZ
G2 patch files: 2

PostPosted: Sun Jun 28, 2020 6:17 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi Jan, many thanks for the reply.

The OT scene switches A (CC55) and B (CC56) send out a total of 32 values: each send values 0 to 15. I want A and B to send the same set of values to CC 70. This works as long as long as just A or B are used. I think the problem with the patch I posted is with the mixer.

If I use OT Scene Switch B (sending CC56 value 15), then OT Scene Switch A can only switch one Variation lower on the G2 and Switch B must be used to switch value back to 0 (Variation 1). It appears the mixer retains the higher value from the last used input.

Essentially I want A and B to be a mirror and the G2 to respond to either A or B in increments of 2 (as OT has 16 Scene variations - G2 8 variations). I'm now thinking a multiplexer may be a better route.
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Tom_LJ



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PostPosted: Sun Jun 28, 2020 6:51 am    Post subject: Reply with quote  Mark this post and the followings unread

Unless there's a more elegant way of doing the patch, what I basically need to do is mix two control signals, but ensure that the latest incoming value to the mixer or switch is sent via CC control send, irrespective of the value on the other input.
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Blue Hell
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PostPosted: Sun Jun 28, 2020 8:02 am    Post subject: Reply with quote  Mark this post and the followings unread

Ah ok .. something like this then I guess :

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_________________
Jan
also .. could someone please turn down the thermostat a bit.
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Tom_LJ



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PostPosted: Sun Jun 28, 2020 4:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

Jan, you're a gem. Many thanks. Will test tomorrow.
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Tom_LJ



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Posts: 6
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PostPosted: Wed Jul 01, 2020 10:02 am    Post subject: Reply with quote  Mark this post and the followings unread

So I finally got time to go back to this patch... Sometimes I overthink things and miss the most basic solutions. I solved this by simply having two midi CC Send modules to CC 70 in the required slot(s) Embarassed I guess in the back of my mind I was presuming this is a no no. Apologies for any confusion caused, and thanks again Jan.

It's great this forum is still up; it's an essential resource for NMs!
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Blue Hell
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G2 patch files: 320

PostPosted: Wed Jul 01, 2020 10:38 am    Post subject: Reply with quote  Mark this post and the followings unread

Cool
_________________
Jan
also .. could someone please turn down the thermostat a bit.
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