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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
MFOS Soundlab Ultimate Midi Mod
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BÄDBUNNY



Joined: Feb 08, 2018
Posts: 3
Location: Germany

PostPosted: Thu Feb 08, 2018 12:51 am    Post subject:  MFOS Soundlab Ultimate Midi Mod
Subject description: How to wire
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So to introduce myself: I'm pretty new here in this forum, to analog synthesis and DIY stuff. I'm just building a MFOS Soundlab Ultimate and also want to include a Midi to CV Converter.

Since I'm pretty unexperienced I want to know if anybody here has an idea how I can Midi control the most of the stuff that's possible my Soundlab. I know I can use something like a Doepfer MCV4, Darklink or a Midimplant from Roman Sowa. But have these enough outputs? How many outputs do I need?

Does anyone can help me what I shall choose and how I need to connect it to the soundlab? I don't really need to build in the converter but if it's possible to build the Midimplant into it I will do it so and than I guess I can save some audio jacks on the front.

On the front panel there are already three VCO LOG-CV In's so I guess I need to connect these with three Midi/CV-Converter-Outputs from a Doepfer that I can control all of these Oscillators?

I just want to control the tone high that coming out of the Soundlab via Keyboard (and maybe some mod wheel stuff). I don't know whats possible without completely modding the whole synth PCB.
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elmegil



Joined: Mar 20, 2012
Posts: 2021
Location: Chicago
Audio files: 16

PostPosted: Fri Feb 09, 2018 10:43 pm    Post subject: Reply with quote  Mark this post and the followings unread

I'm building an Ultimate + Expander + MIDI for someone right now.

My choice is to connect the CV and gate and trigger to:

1) the switch lug of the CVs (all 3 oscillators) in and gate and trigger in

2) bananas on a little aux panel, like the already existing aux panels for the Ultimate and Expander.

Also going to connect all the other values to the panel as well; plan to use the Kvitek MIDISizer, and in MONO mode I will have velocity, bend, cc1, start, and clock outputs, as well as LEDs for activity on MIDI and gate.


MFOS-MIDISizer.jpg
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Ignore the fact that this shows 1/4" jacks, I'm gonna use bananas :)
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MFOS-MIDISizer.jpg


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BÄDBUNNY



Joined: Feb 08, 2018
Posts: 3
Location: Germany

PostPosted: Sun Mar 11, 2018 11:50 pm    Post subject: Reply with quote  Mark this post and the followings unread

[quote="elmegil"]I'm building an Ultimate + Expander + MIDI for someone right now.

My choice is to connect the CV and gate and trigger to:

1) the switch lug of the CVs (all 3 oscillators) in and gate and trigger in

2) bananas on a little aux panel, like the already existing aux panels for the Ultimate and Expander.

Also going to connect all the other values to the panel as well; plan to use the Kvitek MIDISizer, and in MONO mode I will have velocity, bend, cc1, start, and clock outputs, as well as LEDs for activity on MIDI and gate.[/quote]

Thanks for the reply! Can you send some updates during the building process? I'm right on soldering the whole stuff together!
I wanted to use a midimplant. Are there any differences between? Guess the Midsizer is a bit cheaper!

I just had the great Idea since I saw it on a SL Mini Mk2 build to make a three state switch and switch between internal Midi-Module, external midi-module and no CV. Guess that would be pretty nice 2 have.

How would you connect it to a soundlab ultimate without an expander?
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elmegil



Joined: Mar 20, 2012
Posts: 2021
Location: Chicago
Audio files: 16

PostPosted: Mon Mar 12, 2018 5:35 am    Post subject: Reply with quote  Mark this post and the followings unread

BÄDBUNNY wrote:

Thanks for the reply! Can you send some updates during the building process? I'm right on soldering the whole stuff together!
I wanted to use a midimplant. Are there any differences between? Guess the Midsizer is a bit cheaper!


I'm not sure it's much cheaper after you pay for the components. It's just easier to mount, IMO. I have room and can do standoffs....

MIDISizer has a lot of options to it, like gate voltage levels, that are programmable with jumpers instead of sysex.



BADBUNNY wrote:

I just had the great Idea since I saw it on a SL Mini Mk2 build to make a three state switch and switch between internal Midi-Module, external midi-module and no CV. Guess that would be pretty nice 2 have.

How would you connect it to a soundlab ultimate without an expander?


Similarly, using the switches on the input jacks. Switching isn't a bad idea, I'll have to think about that.
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BÄDBUNNY



Joined: Feb 08, 2018
Posts: 3
Location: Germany

PostPosted: Mon Mar 12, 2018 5:45 am    Post subject: Reply with quote  Mark this post and the followings unread

[quote]Similarly, using the switches on the input jacks. Switching isn't a bad idea, I'll have to think about that. [/quote]

Yeah I guess I will also implement this. This is a good way to make it more suitable for different situations.

[quote]I'm not sure it's much cheaper after you pay for the components. It's just easier to mount, IMO. I have room and can do standoffs....

MIDISizer has a lot of options to it, like gate voltage levels, that are programmable with jumpers instead of sysex. [/quote]

Guess I'm gonna also go for it. Hopefully the custom service in Germany does not give that much attention Laughing

I will update this topic if I implemented the solutions. Maybe you can also do this Razz
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