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[on:]

I just threw up a page about my custom midi mixer. I kind of modeled it after the M-Audio X-session Pro. I haven't painted it because I don't have the facilities here at college. I also plan on expanding the project with some buttons and two capacitive sensing jog wheels. I plan to use a mouse for the rotary input. I already have the capacitive sensors implemented on digital pins 11 and 12.

Code: http://cal.freeshell.org/projects/potmon3midi5mux4.pde

Mind you I'm no programmer or Electrical Engineer so the code isn't as efficient as it should be. I'm actually studying Mechanical Engineering Technology at RIT; this is just a hobby.

Project page: http://cal.freeshell.org/projects/

Here's a picture of it:


These forums and the playground have been a lot of help. Between both of the capacitive sensing pages, the 4051 multiplexer page and the various midi projects on the forum I've managed to cobble together the code.

[Reply #1 on:]

Cool! Have you gotten it to control anything yet?

[Reply #2 on:]

Yeah, it sends midi over USB through the Roland driver. It should work with anything that is compatible with midi messages. Right now I have it piped into Traktor for mixing songs. It works very well. I just wish I had nicer slide pots, these are kinda stiff.

[Reply #3 on:]

Whats your name I will facebook you. I go to RIT also. John Gutmann

[Reply #4 on:]

 y4m4,  as I said before, nice work bud.

So there are at least 3 of us then that go to RIT and are on the arduino forum.

4th year ME, here.

[Reply #5 on:]

ahhh I am a computer engineer. >_< you slackers!!

[Reply #6 on:]

Slackers? I think we're diversifying.  ;D Microcontrollers are more or less out of the scope of our major.

[Reply #7 on:]

Hey, RIT! I'm in Rochester; that's where I plan on going! Electrical engineering and computer science.

[Reply #8 on:]

Nice work, I'm trying to mod my mixer so it keeps its audio capabilities for  DJing but has midi involved for working with video. But I might go your  route.

[Reply #9 on:]

Maybe we need a Rochester Arduino group?

Combover, I was thinking something very similar. I want to get a "broken" mixer and wire all the pots up to the arduino like the one I made. That would give an extremely clean look, give you higher quality pots and might even be cheaper. Certainly cheaper than buying 13+ quality pots.

I'm not familiar with the workings of an analog mixer but I don't know if you could use it for midi signals and mix live audio. The live audio will probably make the arduino read funny values.

[Reply #10 on:]

Looks like a cool thing to do... where did you get the faders from?

[Reply #11 on:]

They are 60mm 10k faders from Mouser. Part number: 312-9301F-10K

They are pretty stiff but it you gently take them apart and clean them out with rubbing alcohol they get better.

[Reply #12 on:]

Thanx a lot!! I'm thinking about an 8-track mixer for my cubase, maybe I give it a try.

About the audio + midi mixer, I'd pass the audio through a computer and control both audio and video via midi, since you can assign any midi controller to more than one function.

[Reply #13 on:]

Im getting some really weird errors trying to run the code in the 15 ide O.o

error: variable or field 'noteOn' declared void In function 'void setup()':

why yes it is a void... how is that a error?

[Reply #14 on:]

why yes it is a void... how is that a error?

a variable can not have type void. It should be something like int, char or a self defined type or it could be void *.

Regards
dh1ao