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CV to Midi - Suggestions ?
MUFF WIGGLER Forum Index -> Modular Synth General Discussion  
Author CV to Midi - Suggestions ?
cloudswim
Hey there,

I'm looking for a CV to Midi unit / module...

Looking at the Kenton Pro CV to MIDI.

Others are Doopher and Expert Sleepers ..

Was wondering if anyone had any experience with these?

Will the pitch CV have problems with accuracy?
wiggies
I use cv.ocd and like it a lot. Not a module; sits outside the rack. Gives 4 cv outputs and 12 gates/triggers. Very configurable. Might be worth a look.

EDIT: oops, never mind. I see now that I misunderstood the question. Cv.ocd is midi to cv.
moremagic
are you looking to convert midi into cv & gate, or cv into midi data?
HansKnop
I recently bought a Doepfer A-192-2, 2 channels cv to midi with gate, note, velocity and CC. I'm very happy with it and use it to integrate my AKAI S6000 with my eurorack system. I didn't notice any accuracy problem with it.
Kent
moremagic wrote:
are you looking to convert midi into cv & gate, or cv into midi data?


He put it in the thread title. razz
locust_locust
I have Mutable Instruments Yarns and can recommend it.
BananaPlug
There’s the Analogue Systems - RS-300. An old expensive design but does a lot.
HansKnop
Yarns is midi to CV afaik, just like to above mentioned cv.ocd
moremagic
Kent wrote:
moremagic wrote:
are you looking to convert midi into cv & gate, or cv into midi data?


He put it in the thread title. razz
did you miss the post above mine Miley Cyrus
Blairio
cloudswim wrote:
Hey there,

I'm looking for a CV to Midi unit / module...

Looking at the Kenton Pro CV to MIDI.

Others are Doopher and Expert Sleepers ..

Was wondering if anyone had any experience with these?

Will the pitch CV have problems with accuracy?


As a confirmed Kenton fan I would head for the Pro 2000 multi channel cv to midi converter. I have used Kenton kit for decades - it does exactly what it is supposed to. Mind you, the Pro 2000 is a (handsome) stand alone unit, which may be a deal breaker.
Rex Coil 7
Blairio wrote:
cloudswim wrote:
Hey there,

I'm looking for a CV to Midi unit / module...

Looking at the Kenton Pro CV to MIDI.

Others are Doopher and Expert Sleepers ..

Was wondering if anyone had any experience with these?

Will the pitch CV have problems with accuracy?


As a confirmed Kenton fan I would head for the Pro 2000 multi channel cv to midi converter. I have used Kenton kit for decades - it does exactly what it is supposed to. Mind you, the Pro 2000 is a (handsome) stand alone unit, which may be a deal breaker.
HE SAID CV TO MIDI PEOPLE ... NOT MIDI TO CV ... IT'S BEEN REPEATED SEVERAL TIMES ALREADY IN THIS THREAD ... HOW MANY TIMES DOES THIS HAVE TO BE SAID?

CV ... TO ... MIDI

NOT

MIDI ... TO ... CV.

Now ... to provide some answers ....

ADDAC221: Take a look at the ADDAC 221. One of the problems with going from CV signal to MIDI is that many CV-to-MIDI converters (such as the Doepfer units) anything below 0v is ignored. So if you send a CV signal that goes from positive to negative, the negative portion of the wave form will be ignored by the converter.

The ADDAC 221 has built in polarity switches, built in offset controls, and built in attenuation. This permits you to move the CV signal ("move" meaning "offset") to the positive, and then attenuate the signal to 5 volts or less, so that the converter can use the entire wave form to modulate the MIDI destination.

ADDAC221 LINK = http://www.addacsystem.com/product/addac200-series/addac221

ADDAC221 LINK = http://analoguehaven.com/addacsystem/addac221/

ADDAC222 LINK = http://analoguehaven.com/addacsystem/addac222/

Note that there is also a configuration program that you may download for free to configure each of the 9 onboard preset slots on the 221. Those memory slots permit you to create 9 different configurations for the 10 channels (settings of each controller's MIDI channel, CC destination, MSB and LSB, etc). A rotary switch allows you to select which of the 9 onboard preset configurations that you created in the configuration software.

DOEPFER:
They offer a couple of these. The "Pocket Electronics Kit" is a prebuilt and pretested PCB that is a CV-to-MIDI converter ... with some limits. You may either use the provided 5vdc source voltage and use passive controls (such as B10K pots) to "send back" 0v to 5v signals on each of the sixteen controller channels. Like the ADDAC221 you can configure each controller to send on any MIDI channel and any MIDI CC destination using a proprietary computer program you may download for free. You may also set each channel up to receive external modulation signals of 5vdc or less. However, those signals must be positive and less than 5vdc. Any negative signals will be ignored, and any voltages sent in above 5vdc will destroy the PCB. So external CV signals sent in to the Pocket Electronic board must be regulated/hard-limited to 5vdc MAX.

LINK = http://analoguehaven.com/doepfer/pocketelectronics/

Doepfer also offers the A-192 CV-to-MIDI module. It is essentially the Pocket Electronics board with 5vdc regulators on each CV input. There are 16 inputs and MIDI I/O. However, unlike the ADDAC221 there are no attenuators, polarity switches, or offset voltages on each input so you'd need another module (or modules) to provide all of those functions which increases both cost and complexity.

LINK = http://analoguehaven.com/doepfer/a-192/

KENTON CV-to-MIDI Pro: Kenton also offers the CV-to-MIDI Pro. However it is limited to just two input channels (if I recall correctly).

LINK = http://www.kentonuk.com/products/items/m-cv/pcvmidi.shtml

The Arturia Keylab MkII keyboard controllers also have one CV-to-MIDI input. My wife owns the 49 key.

The Squarp Pyramid sequencer has one CV-to-MIDI input and one GATE-to-MIDI input. I own one of these.

I also own one of the Doepfer Pocket Electronics PCB kits, as of yet I have not built it.

The ADDAC221 is the best one going. Doubtlessly.

(I am not monitoring this thread, if you need to communicate with me please send a PM, I'll be happy to discuss this with you)

cookie?!?
JohnLRice
Moon Modular 552



Blairio
JohnLRice wrote:
Moon Modular 552




That is the smartest and most intuitive interface design I have seen in a long time.

Why the two ranges of midi channel though (1-4, 5-8)? Is there a 4 channel expander available for it? Or is it simply that you can use two 552's in the same rack without midi channel clash?

Also, modular grid lists this as 2HP. This is not two Eurorack HP, so is it a different modular standard?
sduck
Blairio wrote:

Also, modular grid lists this as 2HP. This is not two Eurorack HP, so is it a different modular standard?


It's actually 2 MU's, or 2 single space moog style units. 5U format, MU specifically.
Blairio
Understood, thank you. A pity though because I could really see a place for it in my (euro)rack!
JohnLRice
Blairio wrote:
Moon Modular 552

Why the two ranges of midi channel though (1-4, 5-8)? Is there a 4 channel expander available for it? Or is it simply that you can use two 552's in the same rack without midi channel clash?
It's several things, I think . . . Gert at Moon Modular has a certain 'style' and he will and wont do certain things. Having a way to select any MIDI channel 1-16 for each of the 4 converter channels would have been ideal but he doesn't do screens or menus on his modules etc and having 4 small rotary switches for at least 1-12 channel selection would have probably been too crowded and expensive?

You are right that the ability to select different channels is to avoid conflicts with MIDI gear in a setup that need to be on their own channel etc. And the other reason to not just have one selector switch that just sets all the converters to the same MIDI channel is that you might want to have 3 converts play a drum machine and the 4th converter play a bass synths, etc etc.

Blairio wrote:
Also, modular grid lists this as 2HP. This is not two Eurorack HP, so is it a different modular standard?
Yeah, that's a ModularGrid compromise we have to endure, all panels widths there are in "hp" but not all hp's there are the same value! confused A eurorack hp = .2" of course but a ModularGrid MU 'hp' = 2.125" and a MOTM 'hp' = 1.75" etc. Dead Banana
JohnLRice
Blairio wrote:
Understood, thank you. A pity though because I could really see a place for it in my (euro)rack!
Nothing stopping you from getting a little desktop box to hold a 5U format module or three, yes?! w00t hyper hihi

Here's a couple small case suggestions:
https://www.synthesizers.com/qcb124.html

https://www.noisebug.net/products/m500-t4-tabletop-case
Blairio
JohnLRice wrote:
Blairio wrote:
Understood, thank you. A pity though because I could really see a place for it in my (euro)rack!
Nothing stopping you from getting a little desktop box to hold a 5U format module or three, yes?! w00t hyper hihi

Here's a couple small case suggestions:
https://www.synthesizers.com/qcb124.html

https://www.noisebug.net/products/m500-t4-tabletop-case


Oh no you don't! That way lies madness. 18U of 84HP Euro is plenty for me.
JohnLRice
Blairio wrote:
JohnLRice wrote:
Blairio wrote:
Understood, thank you. A pity though because I could really see a place for it in my (euro)rack!
Nothing stopping you from getting a little desktop box to hold a 5U format module or three, yes?! w00t hyper hihi

Here's a couple small case suggestions:
https://www.synthesizers.com/qcb124.html

https://www.noisebug.net/products/m500-t4-tabletop-case


Oh no you don't! That way lies madness. 18U of 84HP Euro is plenty for me.
lol Understood. That's how I ended up with a lot of eurorack and I've been fighting back that "fire" ever since! Dead Banana Mr. Green
hippasus
In Euro (sorry to spoil the 5U party) disting 4 with midi expander will do it too.
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