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Volca easiest MIDI Out mod!!!
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mikeneaves



Joined: 15 Dec 2015
Posts: 1

PostPosted: Tue Dec 15, 2015 12:09 pm    Post subject: Reply with quote

Would it be possible to wire the volca so that it would work with the cable that Carn mentions? If so does anyone know how it would be done?
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spirit68



Joined: 26 Jan 2016
Posts: 34

PostPosted: Tue Jan 26, 2016 8:29 am    Post subject: Reply with quote

mikeneaves wrote:
Would it be possible to wire the volca so that it would work with the cable that Carn mentions? If so does anyone know how it would be done?

no. Wrong soldering on the DIN-Plug.

Another Question: Can i Use the 2 blind Pins of my DIN-Socket (1 and 5) to send Midi Out through them? Can i share the Grnd-Pin for Midi IN and Out?
As I will have to build some adapter piece anyways, I could also make myself a Y-Cable from this new Midi Combo In/Out Socket to In and Out of my Midi-Interface.

PINs on DIN Plug

Volca --- Interface
I/O --- Out ---- In
1 --------------- 2
2 ------ 2
3 ------ gnd -- gnd
4 ------ 4
5 -------------- 4

P.S. There is some guy who says he did that: https://www.dropbox.com/sh/s34ehjazrndagl2/AAAwBlHmUclheH4ZGIp7Nk3ga?dl=0
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spirit68



Joined: 26 Jan 2016
Posts: 34

PostPosted: Tue Feb 02, 2016 8:02 pm    Post subject: Reply with quote

FYI: Pins 1 and 3 should be blind, but they are somehow connected to chassis ground. I cant find where to cut this shortcut. Sad
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p_wats



Joined: 07 Sep 2009
Posts: 8

PostPosted: Tue Feb 02, 2016 9:56 pm    Post subject: Reply with quote

This is very clever. Thanks!
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migrainboylab



Joined: 13 Apr 2016
Posts: 1

PostPosted: Thu Apr 14, 2016 5:24 am    Post subject: Reply with quote

Great share cooptrol! Thanks!

can anyone share their experience with this great volca midi mod?
like, does it affect the sync out? ( if i want to chain 2 volca, for example ).
and does the volca midi out transmit midi CC?

thanks!
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spirit68



Joined: 26 Jan 2016
Posts: 34

PostPosted: Tue Aug 23, 2016 11:33 am    Post subject: Reply with quote

just wanted to share that i did it on my Volca FM and it does work:
It will also send sysex dumps!
correct soldering:
TX -> ring (3,5mm or 1/8") -> Pin 5 (DIN)
VD -> tip (3,5mm or 1/8") -> Pin 4 (DIN)
You dont need GND soldering as it is already on sleeve.
Sync out does not work any more. (But you can have an on-off-switch between VD soldering points to use both. I did this on my bass and keys but almost never use it.)

CC will be sent by beats, keys, bass, FM.
As far as I found out, CC will NOT be sent by Sample (this would have been a beast midi controller sending 15 CC on 10 midi channels = 150 CC messages).
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sharp78



Joined: 08 Jun 2018
Posts: 1

PostPosted: Fri Jun 08, 2018 10:07 pm    Post subject: Reply with quote

I just did this mod on a Volca Keys. Works fine. I did the mod and made a cable (just connected the wires whilst everything was turned on to check which wires to solder from the TRS to the MIDI cable)



Photos here
https://twitter.com/rathersharp/status/1005208183844073477?s=21
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ShoNuff
Junior Member


Joined: 27 Oct 2014
Posts: 65

PostPosted: Sun Jul 22, 2018 6:04 pm    Post subject: Reply with quote

i'm thinking of having a stereo minijack (trs) on the back,
and chop ping a midi cable with a minijack plug on it.

that would mean a male midi plug out.
so?
TX/VD/Grnd go to what MIDI cable pinouts? it's a standard
wiring, i assume?
(i've already got the hole drilled with a socket in there)

but: have also seen a pre-made female midi plug with
mini-trs/sterojack on volca end. with that be the same
wiring? i don't know if these can be bought. it seems they
might come supplied with the SQ1(?)
not sure there's any advantage with that. i'd still have to
use another MIDI cable to complete the connection.
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megamarkd
Senior Member


Joined: 15 Aug 2017
Posts: 315
Location: Australia

PostPosted: Mon Jul 23, 2018 2:04 am    Post subject: Reply with quote

Okay story goes Korg use a different wiring to everyone else. Korg's pinout is 4->Ring, 5->Tip and 2->sleeve I'm pretty sure, but check that with a search. I'm just reversing the Arturia pinout.
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ShoNuff
Junior Member


Joined: 27 Oct 2014
Posts: 65

PostPosted: Mon Jul 23, 2018 5:44 am    Post subject: Reply with quote

i will have to look at how a regular midi cable is wired.
how can it work between devices if ins/outs are different?
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