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Suggestion: Simple+cheap multiple MIDI CC to CV converter

Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Ville Oikarinen

Hello.

I have a module suggestion: a simple cheap module that converts
multiple MIDI control change messages into multiple control voltages.

AFAIK, the simple and cheap MIDI-CV converters (like A-190-4) don't
support many CCs, only velocity + one controller. Only expensive
converters support multiple CCs.

I don't understand electronics, but I guess it wouldn't cost too much
to just skip note ons and concentrate on a set of CCs and output them
as voltages. To keep costs down, the MIDI channel and controller
numbers could be hard-coded. This way no user interface would be
needed.

Or, if it doesn't cost much, maybe a switch for MIDI channel can be
added. But the controllers can be any predefined set, because
computers and their software can easily accommodate to that.

Maybe it would be nice to support both 7 and 14 bit controllers, but
if not, 14 bits would be better, for accuracy of the values rather
than speed of change.

If anybody, Doepfer would be the company to achieve this, right? :)

- Ville Oikarinen

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Bakis Sirros

hi,
such a module existed (A191 Midi to CV), but has now been discontinued.
 i have it in my Doepfer system and it is very nice for the midi cc's to cv conversion and for the nice Shepard tone generation.

best regards,Bakis.
Show quoted textHide quoted text
      From: "Ville Oikarinen ville@oikarinen.org [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
 To: Doepfer_a100@yahoogroups.com 
 Sent: Friday, September 22, 2017 2:09 PM
 Subject: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter
   
    Hello.

I have a module suggestion: a simple cheap module that converts
multiple MIDI control change messages into multiple control voltages.

AFAIK, the simple and cheap MIDI-CV converters (like A-190-4) don't
support many CCs, only velocity + one controller. Only expensive
converters support multiple CCs.

I don't understand electronics, but I guess it wouldn't cost too much
to just skip note ons and concentrate on a set of CCs and output them
as voltages. To keep costs down, the MIDI channel and controller
numbers could be hard-coded. This way no user interface would be
needed.

Or, if it doesn't cost much, maybe a switch for MIDI channel can be
added. But the controllers can be any predefined set, because
computers and their software can easily accommodate to that.

Maybe it would be nice to support both 7 and 14 bit controllers, but
if not, 14 bits would be better, for accuracy of the values rather
than speed of change.

If anybody, Doepfer would be the company to achieve this, right? :)

- Ville Oikarinen

AW: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by yahoo@doepfer.de

We have such a device available as a DIY product (MTV16) but not as module.
It's easy for a DIYer to mount the MTV16 board behind a front panel with 16
sockets and wire the 16 sockets to the MTV16. And the MTV16 could be powered
by the +12V of the A-100 bus. I'm not sure if there are sufficient inquiries
to justify the "conversion" of the MTV16 into a module.

Best wishes
Dieter Doepfer
Show quoted textHide quoted text
> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com]
> Gesendet: Freitag, 22. September 2017 12:41
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV
> converter
>
>
> Hello.
>
> I have a module suggestion: a simple cheap module that converts
> multiple MIDI control change messages into multiple control voltages.
>
> AFAIK, the simple and cheap MIDI-CV converters (like A-190-4) don't
> support many CCs, only velocity + one controller. Only expensive
> converters support multiple CCs.
>
> I don't understand electronics, but I guess it wouldn't cost too much
> to just skip note ons and concentrate on a set of CCs and output them
> as voltages. To keep costs down, the MIDI channel and controller
> numbers could be hard-coded. This way no user interface would be
> needed.
>
> Or, if it doesn't cost much, maybe a switch for MIDI channel can be
> added. But the controllers can be any predefined set, because
> computers and their software can easily accommodate to that.
>
> Maybe it would be nice to support both 7 and 14 bit controllers, but
> if not, 14 bits would be better, for accuracy of the values rather
> than speed of change.
>
> If anybody, Doepfer would be the company to achieve this, right? :)
>
> - Ville Oikarinen
>
>
> ------------------------------------
> Posted by: Ville Oikarinen <ville@oikarinen.org>
> ------------------------------------
>
>
> ------------------------------------
>
> Yahoo Groups Links
>
>
>

Re: AW: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Malte Stamm-Gadow

Hello Dieter,

I think, there are many musicians like me out there, who will like a modul to convert Midi-CCs into CV and who are no diy-guys. 

Greetings,
Malte

Malte Stamm-Gadow
Diekmissen 5

24159 Kiel
Show quoted textHide quoted text
> Am 22.09.2017 um 13:53 schrieb yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com>:
> 
> We have such a device available as a DIY product (MTV16) but not as module.
> It's easy for a DIYer to mount the MTV16 board behind a front panel with 16
> sockets and wire the 16 sockets to the MTV16. And the MTV16 could be powered
> by the +12V of the A-100 bus. I'm not sure if there are sufficient inquiries
> to justify the "conversion" of the MTV16 into a module.
> 
> Best wishes
> Dieter Doepfer
> 
> 
>> -----Ursprüngliche Nachricht-----
>> Von: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com]
>> Gesendet: Freitag, 22. September 2017 12:41
>> An: Doepfer_a100@yahoogroups.com
>> Betreff: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV
>> converter
>> 
>> 
>> Hello.
>> 
>> I have a module suggestion: a simple cheap module that converts
>> multiple MIDI control change messages into multiple control voltages.
>> 
>> AFAIK, the simple and cheap MIDI-CV converters (like A-190-4) don't
>> support many CCs, only velocity + one controller. Only expensive
>> converters support multiple CCs.
>> 
>> I don't understand electronics, but I guess it wouldn't cost too much
>> to just skip note ons and concentrate on a set of CCs and output them
>> as voltages. To keep costs down, the MIDI channel and controller
>> numbers could be hard-coded. This way no user interface would be
>> needed.
>> 
>> Or, if it doesn't cost much, maybe a switch for MIDI channel can be
>> added. But the controllers can be any predefined set, because
>> computers and their software can easily accommodate to that.
>> 
>> Maybe it would be nice to support both 7 and 14 bit controllers, but
>> if not, 14 bits would be better, for accuracy of the values rather
>> than speed of change.
>> 
>> If anybody, Doepfer would be the company to achieve this, right? :)
>> 
>> - Ville Oikarinen
>> 
>> 
>> ------------------------------------
>> Posted by: Ville Oikarinen <ville@oikarinen.org>
>> ------------------------------------
>> 
>> 
>> ------------------------------------
>> 
>> Yahoo Groups Links
>> 
>> 
>> 
> 
> 
> 
> ------------------------------------
> 
> ------------------------------------
> 
> 
> ------------------------------------
> 
> Yahoo Groups Links
> 
> 
>

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Diego Ragnini

Me too once I believed this way, though frankly it seems that modular synthesis fellows usually keep themselves far away from the MIDI world… it shouldn’t be too hard to find someone available for mounting it for you. I ignored the existence of the MTV16 and might be interested in having one (assembled) for me !
Best, Diego
Show quoted textHide quoted text
> Il giorno 22 set 2017, alle ore 14:01, Malte Stamm-Gadow m.stamm-gadow@innamorati.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> ha scritto:
> 
> Hello Dieter,
> 
> 
> I think, there are many musicians like me out there, who will like a modul to convert Midi-CCs into CV and who are no diy-guys. 
> 
> Greetings,
> Malte
> 
> Malte Stamm-Gadow
> Diekmissen 5
> 
> 24159 Kiel
> 
> 
> Am 22.09.2017 um 13:53 schrieb yahoo@doepfer.de <mailto:yahoo@doepfer.de> [Doepfer_a100] <Doepfer_a100@yahoogroups.com <mailto:Doepfer_a100@yahoogroups.com>>:
> 
>> We have such a device available as a DIY product (MTV16) but not as module.
>> It's easy for a DIYer to mount the MTV16 board behind a front panel with 16
>> sockets and wire the 16 sockets to the MTV16. And the MTV16 could be powered
>> by the +12V of the A-100 bus. I'm not sure if there are sufficient inquiries
>> to justify the "conversion" of the MTV16 into a module.
>> 
>> Best wishes
>> Dieter Doepfer
>> 
>> 
>>> -----Ursprüngliche Nachricht-----
>>> Von: Doepfer_a100@yahoogroups.com <mailto:Doepfer_a100@yahoogroups.com> [mailto:Doepfer_a100@yahoogroups.com <mailto:Doepfer_a100@yahoogroups.com>]
>>> Gesendet: Freitag, 22. September 2017 12:41
>>> An: Doepfer_a100@yahoogroups.com <mailto:Doepfer_a100@yahoogroups.com>
>>> Betreff: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV
>>> converter
>>> 
>>> 
>>> Hello.
>>> 
>>> I have a module suggestion: a simple cheap module that converts
>>> multiple MIDI control change messages into multiple control voltages.
>>> 
>>> AFAIK, the simple and cheap MIDI-CV converters (like A-190-4) don't
>>> support many CCs, only velocity + one controller. Only expensive
>>> converters support multiple CCs.
>>> 
>>> I don't understand electronics, but I guess it wouldn't cost too much
>>> to just skip note ons and concentrate on a set of CCs and output them
>>> as voltages. To keep costs down, the MIDI channel and controller
>>> numbers could be hard-coded. This way no user interface would be
>>> needed.
>>> 
>>> Or, if it doesn't cost much, maybe a switch for MIDI channel can be
>>> added. But the controllers can be any predefined set, because
>>> computers and their software can easily accommodate to that.
>>> 
>>> Maybe it would be nice to support both 7 and 14 bit controllers, but
>>> if not, 14 bits would be better, for accuracy of the values rather
>>> than speed of change.
>>> 
>>> If anybody, Doepfer would be the company to achieve this, right? :)
>>> 
>>> - Ville Oikarinen
>>> 
>>> 
>>> ------------------------------------
>>> Posted by: Ville Oikarinen <ville@oikarinen.org <mailto:ville@oikarinen.org>>
>>> ------------------------------------
>>> 
>>> 
>>> ------------------------------------
>>> 
>>> Yahoo Groups Links
>>> 
>>> 
>>> 
>> 
>> 
>> 
>> ------------------------------------
>> 
>> ------------------------------------
>> 
>> 
>> ------------------------------------
>> 
>> Yahoo Groups Links
>> 
>> 
>> 
> 
> 
>

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Ville Oikarinen

> We have such a device available as a DIY product (MTV16) but not as module.

Thanks, Dieter. The features look promising.

Well, I was inaccurate in my request: I don't really care if it's a
module or a separate device. Maybe separate is even better so it
doesn't take any rack space.

I'm not skilled with electronics myself, but since this is a DIY
product, it shouldn't be too difficult for experts (at Doepfer or
somebody else) to walk the last mile and productize this. So not only
a board with pins, but a box with 3.5mm CV outs and a power in so
somebody like me could use it without soldering anything.

- Ville Oikarinen

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Florian Anwander

Hi

Am 22.09.2017 um 13:53 schrieb yahoo@doepfer.de [Doepfer_a100]:
> I'm not sure if there are sufficient inquiries
> to justify the "conversion" of the MTV16 into a module.
I think that there is a reason, why the A-191 did not sell well. And 
also there is a reason why for example Schneidersladen lists 76 
interface modules, but non of them is a MIDI-CC to CV interface. Mostly 
the 7Bit resolution of MIDI is too coarse and the transfer rate if MIDI 
is too slow. The Silentway / Expert Sleepers system provides 24Bit and 
control signal in the full audio range. This really great system, which 
is well established in the DAW-world, will always cut the sales of any 
MIDI-CC to CV interface.


Florian

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Ville Oikarinen

> I think that there is a reason, why the A-191 did not sell well. And
> also there is a reason why for example Schneidersladen lists 76
> interface modules, but non of them is a MIDI-CC to CV interface. Mostly
> the 7Bit resolution of MIDI is too coarse and the transfer rate if MIDI
> is too slow. The Silentway / Expert Sleepers system provides 24Bit and
> control signal in the full audio range. This really great system, which
> is well established in the DAW-world, will always cut the sales of any
> MIDI-CC to CV interface.

Yes, you are of course right that MIDI has sever limitations. Still,
there are a lot of usecases where those limitations don't matter or
the are even desirable. (Most limitations tend to create new styles in
art.)

Also, the audio to CV solutions have quite poor linux/OSS support at
the moment, AFAIK.

So, if the price is right, MIDI2CV still has its uses, IMO.

- Ville Oikarinen

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Diego Ragnini

Useful observations, didn’t know about the 7bit, thought from MIDI to CV it’s 12bit by default.
Then there’s no room left for both efficient and cheap tools, as demanded in the first post (if I am not wrong believing that Expert Sleepers means money…)
Show quoted textHide quoted text
> Il giorno 22 set 2017, alle ore 14:35, Florian Anwander fanwander@mnet-online.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> ha scritto:
> 
> Hi
> 
> Am 22.09.2017 um 13:53 schrieb yahoo@doepfer.de [Doepfer_a100]:
>> I'm not sure if there are sufficient inquiries
>> to justify the "conversion" of the MTV16 into a module.
> I think that there is a reason, why the A-191 did not sell well. And 
> also there is a reason why for example Schneidersladen lists 76 
> interface modules, but non of them is a MIDI-CC to CV interface. Mostly 
> the 7Bit resolution of MIDI is too coarse and the transfer rate if MIDI 
> is too slow. The Silentway / Expert Sleepers system provides 24Bit and 
> control signal in the full audio range. This really great system, which 
> is well established in the DAW-world, will always cut the sales of any 
> MIDI-CC to CV interface.
> 
> 
> Florian
> 
> 
> ------------------------------------
> 
> ------------------------------------
> 
> 
> ------------------------------------
> 
> Yahoo Groups Links
> 
> 
>

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Ville Oikarinen

> Useful observations, didn’t know about the 7bit, thought from MIDI to CV it’s 12bit by default.

Midi data is 7 bits. But certain controllers send two 7-bit bytes so
their resolution is 14 bits. This means that the values cannot be
changed so often, because they require more bandwidth.

> Then there’s no room left for both efficient and cheap tools, as demanded in the first post (if I am not wrong believing that Expert Sleepers means money…)

Sure, MIDI can never be as "efficient" as digital audio, but it's OK.
I just want the "cheap" part, within limitations of the MIDI standard.

- Ville Oikarinen

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Ville Oikarinen

> > if I am not wrong believing that Expert Sleepers means money…
> Don't tell me that your Doepfer system did not mean money for you :-))))

Also, it seems ES-3 isn't even terribly expensive. It's just that I'm
not sure I'll be able to use it from my linux machine, with the
software and connections I have. Of course I'd be happy to be
corrected here.

- Ville Oikarinen

Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Diego Ragnini

LOL !
No I don’t tell you :-)
But here Ville was asking for cheap stuff
I have to deepen ES systems though for live applications it would entail to take always an audio interface with multiple outs on stage… :-(



Il giorno 22 set 2017, alle ore 14:57, Florian Anwander fanwander@mnet-online.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> ha scritto:

Hi Diego

> if I am not wrong believing that Expert Sleepers means money…
Don't tell me that your Doepfer system did not mean money for you :-))))

Florian


Re: [Doepfer_a100] Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-09-22 by Diego Ragnini

Ville, I think you're right and hope ES is not too expensive, I admit to have replied without verify anything about costs, I simply remembered that there are different modules though likely are needed to make the inverse process (from mod sys to the DAW recorder) or probably also to "manage" the recorded tracks when come back to the mod system...? 
In case the software is enough to send cv to the modular sys through an audio interface then I would start to use it asap
Thanks for having started this topic 
Best, dxx

Inviato da iPad
Show quoted textHide quoted text
> Il giorno 22 set 2017, alle ore 15:01, Ville Oikarinen ville@oikarinen.org [Doepfer_a100] <Doepfer_a100@yahoogroups.com> ha scritto:
> 
> > > if I am not wrong believing that Expert Sleepers means money…
> > Don't tell me that your Doepfer system did not mean money for you :-))))
> 
> Also, it seems ES-3 isn't even terribly expensive. It's just that I'm
> not sure I'll be able to use it from my linux machine, with the
> software and connections I have. Of course I'd be happy to be
> corrected here.
> 
> - Ville Oikarinen
>

Re: Suggestion: Simple+cheap multiple MIDI CC to CV converter

2017-10-16 by Ville Oikarinen

I found another option: https://waldorfmusic.com/en/kb37

If you only need Midi CC->CV, it's not cheap, but it not only
transforms 3 user-defined CCs into CV, it's also a MIDI+CV keyboard,
modular rack, headphone amp etc.

- Ville Oikarinen

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