Music Synthesis with a Human Pulse: Max/MSP and Biofeedback

While on the subject of physical computing, you can’t get much more physical than the pulse from a human body. pixelcrypt has created a piece that synthesizes music using human pulse. Two participants can collaborate on the music by regulating their pulse; the sonic feedback means this interactive art piece also doubles as an excellent example of biofeedback. Working together, you can synchronize your pulses. (I dream of the day when I can receive MIDI Time Code, but until then . . .)


Bio Rhythms v1 Evaluation (via SteamSHIFT)


The whole thing is built in Max/MSP: plug in a sensor, and play. And yes, this is yet another example of why Max is a compelling tool for translating data from sensors into sound and imagery. It’s music with heart.


Everyone Deserves a Robotic MIDI Arm — Even DJs

Okay, wannabe cyborgs, you know you want it: no matter the price, you have to have a robotic armature on your body that sends MIDI data. The latest, via Engadget: the Gypsy MIDI controller. (Wait a second, the gypsy MIDI controller? Now, that doesn’t sound very cyborg. Marketing department, please?) It’ll cost you US$855 an arm, or US$1,675 for the whole suit (best value, as the marketing people would say). Sound pricey? No, that’s about typical in the history of these kind of mechanisms. Speaking of which, despite their claims, this is not the first device of this kind. But it can perform wirelessly, and comes configured out of the box for DJs — now that’s new. Let’s take a look at this latest entry, and see which other attempts I can remember . . .



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Circuit-bent Lightbulb Music at Tokyo Dorkbot; Tokyo Writer Wanted!

If you missed the evolving Dorkbot event in May, you missed some fantastic flourescent light bulb performance and djing with human bodies as electrical swithces. (The former I’ve heard done by a different artist; beautiful, wild sounds.)



You’ve got a second chance: Dorkbot is due again on the 2nd of October with bending circuits apparently the theme:


Dorkbot Tokyo Taking Off [English, WWMNA]
May Dorkbot coverage in Japanese: RealTokyo, RadioLife
May Dorkbot summary in English: Dorkbot.org, plus photos
Upcoming Event info [Japanese only, but hey, it is in Tokyo]


Tokyo correspondent wanted! Readers in Tokyo, want to keep us posted on music making there? I’d love to have a CDM Tokyo writer, even if just to send us some Dorkbot Tokyo pictures next month. Drop me a line.


What’s Dorkbot? Dorkbot is “people doing strange things with electricity”; it’s an event that was born here in NYC (at Columbia) but has now spread to many corners of the world. Check the international Dorkbot site, find a Dorkbot, go listen/see/present, and send photos and a few words = instant global fame on CDM. Even if you’re not in Tokyo.

Body Pads: Play Your Thighs [Updated]

Using piezo-electric sensors or specialized drum pads, you
can turn acoustic drums into triggers, then convert that signal to MIDI. But why stop there, when your
legs are just waiting to be slapped?

To use your legs as a trigger, you’ll want a fairly sensitive sensor — standard drum triggers would require you to hit your legs with your sticks. Hard. (Though you might be into that; I don’t know.)

The Pulse BD-1 Body Pad Drum Trigger is supposedly designed just for the purpose of strapping a trigger to your body. They’re ugly as hell (check the geeky product shots). Loose-fitting costume / parachute pants might be in order. (Better option may be to go DIY or use a different trigger — see the comment at the end of the story.)

The tricky part, as with any drum trigger, is that you’ll need a module to convert triggers to MIDI to make the trigger useful, like the Roland TMC6 Trigger MIDI Converter. (If that’s too pricey, you can usually score something much cheaper by scouring eBay.) Once you’ve added the MIDI trigger, you can trigger percussion, samples, loops, video clips, whatever, by slapping your (suddenly rather bulky) legs.

Let me know if you’ve done anything like this and how it went. As a non-drummer, thigh-slapping may be the closest I can come to percussion - stay tuned.

UPDATE: These are crap? I asked for feedback and got it — our friend Kevin of The Nettles (great band, by the way) writes in comments (in case you missed it):

I’m sorry but I own a pair of these suckers and they’re a waste of money.  

 For a start, they’re not pads, they’re blocks of wood with transducers inside. When you bang with your fingers on a unyielding block of wood, you damage your finger joints.  Secondly, the transducers that Pulse provide with my pair have widely varying sensitivities, an indication of a serious quality-control problem, which I’ve also seen with their Red Dot drum transducers.

Avoid or build them on your own with piezos, a piece of wood and old rubber mouse pads. Then you can use sticks or your hands. For trigger midi converters you can check out older trigger to MIDI converters but your best bet might be to buy an old drum brain, like an Alesis D5, that has MIDI outs. Then you not only get MIDI conversion, you also get a sound bank in case you don’t want to burden your synth.

 

Thanks, Kevin; that was exactly the kind of first-hand experience I was hoping for. I’ll continue my quest for a knee-slapping good musical time, but if Kevin is right here, lousy triggers are not a good place to start. And wooden blocks? DIY it is. More updates on this topic soon.