Making an Axoloti Organ Pedal

#1

So I have this old bass pedal (13 notes) from an old ORLA Organ that I want to turn into my own personalized MOOG Taurus.

There are guides on how to DIY with Arduino or even Raspberry Pi but none for Axoloti and I'd like to keep my purchase list neat and tidy going into this.

Any advice on what I'd need to buy?

In order to make it velocity sensitive, what would I need to pull of? Anyone have any ideas on where to fetch what that would go well with this?
I've seen some try conductivity and Arduino for this purpose, but there might be better ways of going about.

#2

first thing to do is see if the existing switches support velocity sensing. few of the old pedals actually do this. if unsure you can post a picture of a switch in the pedal...

#3

The best I can tell you regarding that is this:

It's from an old ORLA Prestige.

I'll be sure to post better pictures.

What I need help with more than anything is:

  • Should I or shouldn't I attempt to bother with velocity sensors. I could makeshift ones with FSR to my understanding, and I'd be crazy enough to do it if I ran the numbers and got some references that shows that it would work to s sufficient degree.

  • Do I need a MIDISHIELD or Arduino if I want the outer part of the Axoloti intact as the back part of the instrument and all the organ keys connected to it's I/Os as well as attenuation control for an integrated foot pedal and 3-5 knobs to control everything with.

#4

FlorestaPrestige.png976x464 47.2 KB

While this doesn't describe what I intend the back to look like and I might want a better powerswitch et.c.

This is more or less the complete primary vision for the project.

It is to emulate the look and execution of most of what one expects from a MOOG Taurus but the Variable is instead replaced with a sample-based library that you can switch in between.

Adding a sub just to have it possible to strike fear into my enemies.

#5

Hi there,

I'm also working on a "Moog Taurus" emulator. So far, I've got the sound engine covered (maybe 90%). I'm aiming more for a "guitar pedal" type box. But I do have a set of old Hammond pedals which is gonna get transformed into a full fledged Moog Taurus one day.

I've been researching Moog Taurus since 2011 and I think I know them pretty good. (even got the original manual).

I'm at my 4th prototype, my previous attempts were based on Raspberry PIs but the Axoloti Core makes a much more elegant solution in my opinion.

I know it's an old thread, but it you need help or info, don't be shy!

Marc aka Khorus

#6

hi @Khorus

instead of velocity i would opt for an fsr-strip across all switches to read aftertouch. imho this is much more interesting (since you can change the sound after noteOn events, by varying the pressure of your foot) and is exactly what i did for my bass-foot pedal.

#7

Frankly, I don't use aftertouch/velocity at all on my pedals. It's mainly a big mono synth dedicated for bass. When I use them live, I don't fancy on the pedals, I simply "kick" the for that big sustained bass drone. You can have an idea of the effect watching an old live video of my band here: https://www.youtube.com/watch?v=LERl61htme0 (around 1:30, I stop playing bass and simply depress my midi pedals).

I can see the use for more control with your feet, maybe I'd have to try it! Maybe on the 5th version of my thingy. :slight_smile:

Cheers!