DrBunsen

How many matrices do you have? Is that 4 LEDs on each button?

The SoundDiver editor layout pictured here might give you some ideas for a MIDIbox XG control surface layout.

You should add them to the Electronics Basics sticky thread in the "Tips and Tricks" forum.

Don't forget DOS ;D Okay, it's single tasking, but there's some interesting programs on that site, and your hardware overhead will be lower than even a stripped Win98. For example: "Midget is a DOS-based MIDI music program, which features support for General MIDI and Yamaha XG devices." FM Tracker "QSEQ is a complete sequencer for DOS/SoundBlaster, using both external MIDI and internal FM synth. A FM editor is included" Elsewhere: "Converter 1.5 is a very powerful and flexible real-time application providing an advanced MIDI input processor, clock sync'ed LFO to MIDI generators, filter bank -based audio to MIDI converter, gameport or joystick to MIDI converter, and mouse or touchpad to MIDI converter in an all-in-one solution. ... on older 486 or Pentium computers." Harmony Central also has a DOS archive - pretty out of date, but there are some leads there worth following up. Also check out Blue - a MIDIboxer's 2003 built embedded DOS keyboard, using AXS, an all-in-one softsynth, sequencer, drum machine, sampler, that also runs under Windows. Interesting DOS Software has an audio section While we're on the subject of riser cards, if you're thinking of using a laptop, there are adapters for mounting full PCI cards in a MiniPCI socket. Some newish laptops use MiniPCI for a modem, NIC or WiFI card.

I wonder if you could fab up a reproduction in discrete chips on a smallish board?

That would be great! There were positive indications in another thread for slow-moving and not very accurate CV like filter cutoff. Would love to see your results. At a fast enough rate, perhaps even a simple bitstream would do. i.e. successively drop bits out of the stream for a lower CV.

This bit I thought was interesting. Some thoughts: With a double sided board, you could have a ground plane on the rear for pots, LEDs, switches, encoders, etc. ... a +ve bus ... traces to/from ribbon headers for DINs ... even a matrix layout .... maybe all leading down to one big edge connector that slots into a MBHP backplane ... On the front ... touch switches as he says ... and the following idea I ripped off from something on either Make or some other blog recently. Touch sliders: == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o == o ... etc Each == is an exposed copper trace. The "o" are LEDs wired up as for a LED ring. The whole column of exposed traces are connected to a resistor ladder, like an AOUT_LC in reverse. Sliding your finger up and down the traces should give a variable voltage like a pot. More traces = more resolution (and more resistors to solder). The skin conductance of your finger -might- improve the resolution by "hardware interpolating" between two traces, but I'm not too sure on that. These are just random thoughts off the top of my head. Anyone ?

May I be the first to say: Nice work! From conception to design to completion.

DIY if you are already set up to etch your own PCBs, and don't have to buy chemicals, tanks, waste one or two PCBs learning etc etc etc. And if you live in the EU And Reichelt don't support midibox.org

Great find! That guy has some awesome stuff on his site.

Ditto on one for me too - still waiting for my login...

Hmm, vactrols... can you pulse the LED and get a constant CV out of them? 'Cause that would be a possible cheap D->A converter... using PWM or just a bitstream ... What are you using for your routing matrix?

Mine and stryd_one's arrived quickly. Have you seen yours yet?

Issue a Fatar instead, and smite him with that ;D One famous use of the ring modulator - "EX-TER-MI-NAATE!"

I'm waiting for my log in confirmation to that forum as we speak ;D

Couple of thoughts: Have a look for the guy who built a Korg Kaoss Pad into his guitar. The touchscreen is in the guitar and the rest of the Kaoss Pad is external, but it's worth checking out as an idea. If you want total control of your effects, you might want to check out Shifty's Death Synth - a homebrew DSP synth/FX based on an Analogue Devices DSP, with MIDI or serial control, and user-written DSP patches. Wireless MIDI: CME also make some (cheap? maybe)

Why not build a MIDIbox controller for all the editable parameters in the ESQ?

Go on - I dare you ;D Vintage Valve Wurlitzer Drum Machine with Tube Amplifier

Or some cheap high grade reel-to-reel tape for anyone with a 2" deck in the house. not that I know what width it is I'm possibly picking up some other gear from him, and he's local(ish) to me...

Yes, it would be a real shame to gut it for a MIDIbox....

That's a beautiful way of making the panel.

Droooooool.....

If he has the time, being my point. But then when a page gets altered, will you want to be running back always to check?

Well what do you know? C16 in au