Combining a Shruthi-1 with a ColorSynth

So here is a quick photo-dump detailing my experience combining a Shruthi-1 monosynth with one of my ColorSynth kits.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-1.JPG">
Laid out the basics, started work on the custom enclosure I designed (pictured on the left in google sketchup)

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-2.jpg">
Tap plastics cut most of the pieces for me, I did the rest and taped everything together with electrical tape and glued it together with some acrylic cement. The overall design of the enclosure is meant to be space efficient, for instance the connector panel is recessed underneath the synth so that the connectors don’t stick out and take up valuable table space. The upward and angled front of the synth is meant to use more vertical space and allow another synth (machinedrum etc) to sit in front without obstructing access to either.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-3.jpg">
Finding space in the enclosure for the ColorSynth and Shruthi PCBs. For the bottom of the enclosure I used mirrored acrylic so as to direct the light from the ColorSynth towards the rest of the fixture.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-4.JPG">
While waiting for the rest of my Shruthi parts to arrive from Mouser I stopped by Excess Solutions in Milpitas, CA. Excess is an electronics surplus warehouse where you can find basically anything. It’s a great place to look around and get ideas, after some searching I found some amazing LED-pushbuttons.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-5.JPG">
Stuffing and testing the rest of the Shruthi circuit

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-6.JPG">
After a few hours with the dremmel I finally got everything stuffed into the front panel. The LED pushbuttons on the bottom there were a particular pain, I’m using two color LEDs for buttons 1 and 3 instead of the dual LED from the original Shruthi design.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-7.JPG">
Here’s the front panel, the pushbuttons have printed labels describing their functions, and with the integrated LEDs I think it’s a much easier way to easily navigate the menus of the synth.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-8.JPG">
Assembled.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-9.JPG">
The back of the synth faces the audience, so the bulk of the light from the ColorSynth is directed to it. The 60% white acrylic is ideal as a fixture.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-A.JPG">
With the knobs, the three vertical knobs and button on the right control the ColorSynth features such as RGB color oscillation, strobing, etc.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-B.JPG">
Ambient lights off, rocking out. In addition to the color oscillators, the ColorSynth responds with different colors to all of the incoming MIDI note messages, which it then echoes out to the Shruthi. The ColorSynth can be set to it’s own MIDI channel via dip switches, but the intended setup is to have both on the same channel so that the Synth creates both light and sound.

:http://colorsynth.com/images/CS-SHRUTHI1/CS-SHRUTHI1-C.JPG">

And my apologies if you caught my post before I edited it, I’m new to this forum software and it took me a minute to figure out how to get the images to display/link correctly.

Nice work. The buttons kinda remind me of digital slot machines.

How do you handle the power supply? From your site it looks as if the ColorSynth uses more power than the Shruthi?

Thanks. I use a 12V DC 1A power supply for the ColorSynths and they draw 450mA, so I just have both ColorSynth and Shruthi-1 wired in parallel to the DC jack. CS has it’s own regulator and capacitors in it’s power section.

Thats some… interesting design…
I do like the Color Synths though :smiley: