Softpot Ribbon Controller

Danno Gee Ray · Joined: Sep 25, 2005 Posts: 1351 Location: Telford, PA USA

So is this wonder of modern magic going to be available to the common man soon, or are you going to continue to tease us with these seeming feats of magic?

How more plainly can I say it?...I want one!

Thanks for all the great work Scott!

Scott Stites · Posted: Sun Sep 21, 2008 11:03 am Post subject:

Scott Stites · Posted: Tue Sep 23, 2008 12:25 pm Post subject:

Some handy-dandy artwork. And yes, that is a finger that I'm attempting to draw......

VMode_CV_Out.PNG

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Voltage Mode Response

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IMode_CV_Out.PNG

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Current Mode Response

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mark_olson · Joined: Oct 26, 2006 Posts: 177 Location: Lawrence, Kansas

Scott:

Thanks for giving us the finger. Very tantalizing.

But what we're all waiting for is the video!

Mark

Scott Stites · Posted: Tue Sep 23, 2008 12:50 pm Post subject:

More artwork...

appendage_markIII_general_block.PNG

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Appendage Gazzins and Gazzouts

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appendage_markIII_general_block_2.PNG

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Appendage General Block Diagram

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bugfight · Joined: Aug 02, 2007 Posts: 188 Location: Arlington, TX USA

Scott Stites · Posted: Tue Sep 23, 2008 12:52 pm Post subject:

Scott Stites · Posted: Tue Sep 23, 2008 12:54 pm Post subject:

Scott Stites · Posted: Tue Sep 23, 2008 1:59 pm Post subject:

Very basic apps.

I don't think I've mentioned it, but I've got State Machine helping out with PCBs and distribution.

appendage_markIII_general_block_keyb.PNG

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Keyboard Bend

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appendage_markIII_general_block_rib.PNG

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Simple Ribbon Controller

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Scott Stites · Posted: Tue Sep 23, 2008 2:46 pm Post subject:

Here's a patch that allows you to rule the world with two fingers.

All three VCOs follow the slide voltage. VCO2 is bent up and down even more with the bend voltage. VCO1 and VCO2 provide the signal to the filter and signal VCA. VCO3 is bent by the TFS voltage, and is routed through a second VCA controlled by the TFS back to the modulation input.

With one finger, the first two VCOs track at different values up and down. Pressing two fingers and spreading them apart introduces FM from VCO3. Sliding one finger up from initial bends VCO2 up as the FM is introduced, sliding one finger down from initial bends VCO3 down as FM is introduced. The various movement of the fingers in relation to each other also affects the general pitch of the modulating VCO in different ways, in addition to increasing and decreasing the modulation index.

appendage_markIII_general_block_ribfm.PNG

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Bend this mess around

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Uncle Krunkus · Posted: Tue Sep 23, 2008 2:51 pm Post subject:

State Machine · Posted: Tue Sep 23, 2008 5:08 pm Post subject:

I like the new name Scott Cool

Mark III Appendage !! The diagrams really sum up the major modes nicely and you have not even touched on the "Hyper Trigger" modes using drum voices. Much easier I think than trying to explain in pure text Wink

I never learned so much from getting the finger. Your finger has such perfectly round nails and the knuckle crease, is that a modified ground symbol from your schematic capture? Laughing

Oh dear, I must be tired, sorry for the bad humor ........ Embarassed

Bill

State Machine · Posted: Tue Sep 23, 2008 5:13 pm Post subject:

Scott Stites · Posted: Tue Sep 23, 2008 9:17 pm Post subject:

No Andy,

You design a mean PCB (you did a bang-up job on the Klee and the much fabled MPS). It's just that, for this project, Bill's looking at designing an integrated system with analog/digital applications as well as using it as an adjunct to the IKC. He's got all the tools for that kind of stuff right there, so it's just as easy for him to knock out this PCB. Don't think you're going to easily escape proto duties (that is, if you're game).

Isn't that a nicely manicured finger? And, those are painstakingly rendered knuckle-wrinkles, I'll have you know.... Very Happy

Cheerios,
Scott

State Machine · Posted: Tue Sep 23, 2008 9:33 pm Post subject:

Uncle Krunkus · Posted: Wed Sep 24, 2008 12:27 am Post subject:

Scott Stites · Posted: Wed Sep 24, 2008 6:09 am Post subject:

State Machine · Posted: Wed Sep 24, 2008 6:49 am Post subject:

bugfight · Joined: Aug 02, 2007 Posts: 188 Location: Arlington, TX USA

fonik · Posted: Wed Sep 24, 2008 2:59 pm Post subject:

Scott Stites · Posted: Thu Sep 25, 2008 6:21 am Post subject:

fluxmonkey · Joined: Jun 24, 2005 Posts: 708 Location: cleve

bubblechamber · Posted: Thu Sep 25, 2008 11:06 am Post subject:

Scott Stites · Posted: Thu Sep 25, 2008 12:11 pm Post subject:

Dragon's Lair · Posted: Sat Sep 27, 2008 9:18 pm Post subject:

Great project Scott, if you need beta testers for the boards, count me in.
Did you know that you can now order the softpots directly from Spectra Symbol, I got a dozen 500mm pots from them a couple months ago, for experimenting with my own Pic based Midi ribbon controllers.