Ok, so i have a mobius on top of my amp
I want to blend more of my direct signal so am considering:
http://www.one-control.com/mosquite-blender-expressio.htmlI want to control this dynamically
On the floor i have the ability to send control change over midi
Ideally i want my floor exp pedal that sends the control change over midi to be converted back to a signal the mosquito can understand so i can manually change (or send a preprogrammed value) the wet/dry
SO basically this is the reverse of changing expression pedal input to midi...
Any ideas/kit you know about?
Comments
Hmm you can get a MIDI-CV converter, it's for interfacing analogue synths (which take a control voltage input) to MIDI.
Dunno if it's exactly what you need, but it's one thing to try investigating. (Though hopefully somebody might suggest something better.)
Be aware the MIDI-CV converters I mentioned are usually depressingly expensive though. Not sure why as it should really just be a little microcontroller chip, a D-A converter chip (not sure what price these would be) and probably some cheap op-amps to buffer the output...
Perhaps it's because the synth market is so specialised.
Hopefully someone will suggest something cheaper!
With your terminilogy of midi to CV have found this: https://www.thomann.de/gb/doepfer_mcv4.htm
Which is ok but does 4x what i need
There are these micro pcb's
http://www.midimplant.com/
but i would need someone to craft a box with midi in and TRS out... beyond my skillset unfortunatley
http://little-scale.blogspot.co.uk/2008/05/four-midi-controlled-digital-pots-via.html?m=1
Does not midi to cv mean midi to control voltage and thats basically what an expression pedal puts out? Variable voltage?
https://missionengineering.com/understanding-expression-pedals/?v=79cba1185463
It seems most expression pedals are a simple pot and resistor. What you would need therefore is: MIDI >CV>Voltage controlled resistance (FET?).
But beware, according to that link there are no standards of voltage and type and you can uck things up if you are not 100% sure of what you do!
Dave.
http://www.synthrotek.com/vac-pak-cv-to-variable-resistance-a-circuit-benders-dream/
Oooo! ^
Getting messy tho'but.
Dave.
That looks great, though dunno if anyone is doing a ready-made one.
Another alternative - maybe not to use the blender thing at all, but get some sort of small MIDI-controlled mixer? I know the big expensive mixers can be controlled digitally, maybe someone does a simple MIDI-controlled mixer with just a few channels on it? This could then be controlled to do pre-set volumes on everything...
Seems that without some more in depth skills will be very difficult to do myself
I can't believe that no-one else has run into this issue and resolved it... would seem to me to be a fairly obvious issue.
No - or at least not necessarily. Any good design will put a voltage across the expression pedal and read the position of the wiper back, but we're dealing with pedals and guitar FX "designers" here, not qualified engineers, so lots use the pot itself in the effect circuit. Bunging a voltage back in may work, may not work, or may (with an exceptionally talented designer) cause damage - though the latter is unusual.
I'll have a look through my bookmarks - I'm sure I've found something that does this before.
Cheers
Google 'Kenton and MIDI' They are the dog's whatsits on MIDI and CV gear but not cheap!
Dave.
As you say Dave, not cheap