MIDI control of analog devices from Michael Una on Vimeo.

John at HighlyLiquid has been busy this year- he’s got a new kit out and one in the works that really step up the game. You may be familiar with his previous kits, which add MIDI control to Speak & Spell, Atari 2600, or pretty much every Casio. HighlyLiquid also stocks more open-ended kits which can add MIDI control to pretty much anything- I used one in my MAKE Magazine article last year to build a drum-playing robot.

A $50 synth that makes neat noises is fun. But a $50 synth that has a proper housing, audio jacks, and can be MIDI controlled — that’s a whole lot better. So readers were wowed last week as we saw the work MrBook did with his Gakken SX-150.

Now, by popular demand, MrBook shares his techniques with specs, instructions, and code. This isn’t a bad project to get started with if you’ve been thinking of doing something on these lines.

The basic ingredients and process:

• Find the connections on the synth for audio and control, using contact points on the board
• Build a simple circuit that adds MIDI input (control) and audio output – schematic on his site. It’s not a tough circuit at all — this could be fun soldering practice.
• Add the Arduino, the open source, dirt-cheap, accessible microcontroller project board, and some code MrBook has written for you.

That should be fun even for relative newcomers – provided you have basic soldering chops. If you want to get more advanced, there’s room to modify the Arduino code to do fun stuff, or, as MrBook is doing, add a standalone Arduino sequencer or the like to drive your synth in hardware alone. (While I’m still on a crusade to do OSC for stuff that talks to computers, I think MIDI should absolutely be used for what it’s good add – connecting hardware.)

You can also have some fun with the casing. (Someone needs to mod the drab colors on the Gakken, too, I think.)

If you do a project and document it, do let us know! And we’ll be watching for more from MrBook.

You can get your SX-150 kit from our good friends at MAKE. (Nope, I’m not getting any cash for saying that. Hmmm… okay, I need an affiliate account, don’t I? Make?)

SX-150 synth mod instructions, schematics and code [MrBook]

Via Collin Cunningham at MAKE, MrBook has a lovely rig with a modified Gakken SX-150, the synth kit that sells for US$50 in the States and has even been seen as a free add-in with Japanese magazines. He’s added MIDI control and a digital audio converter, and put it into a housing, which makes for a quite-playable instrument.

Really terrific work! Of course, a few thoughts:

• We need an OSC-compatible synth. (Anyone out there?)
• I love you, Live, but this looks like a perfect job for Numerology (for its modular sequencing) or Renoise (for tracking).
• Looks like more controls would make this even more self-contained.

Gakken sx-150 arduino hack number two: Adding MIDI and Audio out

If you have synth projects like this, we’d love to see them.

Interested in experimenting with MIDI, minus the wires? Why not try a DIY hack yourself? Limor Fried aka Lady Ada of Adafruit Industries has posted a detailed tutorial on transmitting MIDI over the inexpensive and relatively friendly XBee wireless module.

It’s a bit of a hack – you force the XBee to communicate at MIDI baud rate, and on Windows, at least, you have to fool the OS into using MIDI’s non-standard baud rate for serial communications. But it seems to work. That’s where you come in: Limor’s got some folks testing this, but we could use some additional real-world tests and a “port” of the instructions to Mac OS and Linux. (I’ll be testing, too, once I get my hands on some spare XBees.)

Tutorial: Using XBees to create a wireless bi-directional MIDI link [ladyada.net/make]

HOW TO – Using XBees to create a wireless bi-directional MIDI link [adafruit blog]

Ingredient list:

Wonderful things happen when you invite lovers of noise together in a room. Musicians and non-musicians, electronics geeks and first-timers, folks pick up a soldering iron — often for the first time — and cause utter mayhem. So we again had a fantastic time at Handmade Music last month. I’ve just gotten the photos in, so decided to share.

We’re looking for folks to bring stuff to Handmade Music on 4/16 – see the bottom of the article and give us a shout if you have software or hardware creations to share. They don’t even have to work, entirely – this is the place to find people to help give advice, so we like even partly-functioning inventions.

Even if you live far, far from Brooklyn (like back in Old Amsterdam), the featured March projects are within reach:

• Loud Objects Noise Toy was the star of the evening. Lesley Flanigan and Tristan Perich of Loud Objects — superstar composers and sound artists themselves — were onhand as patient teachers and guides in the ways of Noise.
• glitchDS on PC and Mac: The DS homebrew creator Bret Truchan delighted with not only his mobile gaming creations, but a netbook running a new PC cellular automaton MIDI sequencer, ported to Processing. More on that soon. (See the image captured by Make Magazine’s Collin Cunningham.)
• Pulsantes I got Jaime Munarriz’ strange Processing + Pd pulsating rhythmic toys working on a PC – thanks, Jaime, for the virtual contribution!
• jReality Peter Brinkmann demonstrated the sonic capabilities of audiovisual virtual reality framework jReality. Intense stuff – you don’t even need to use Cartesian coordinates. Elliptical, baby!
• Networked Objects: Eric Beug brought by his DIY wireless synth modules and an iPhone for control. This progress is under development, so I hope it makes a repeat visit.

By the way, in case you wondered what happens when a bunch of people play all their newly-built Noise Toys at once? It sounds something like … this (and sorry, my digicam mic was entirely incapable of capturing the resulting sonic chaos):