Friday, December 31, 2010

good things are on the way....

first prototype of bowed-stick on lazy susan generator....

Tuesday, December 14, 2010

Machine Project

This awesome gallery is hosting the 5th Electric Eel Worksop!

Tuesday, December 7, 2010

Sunday, December 5, 2010

workshop parts

allof this is flying with me to los angeles to be built into Electric

Tuesday, November 30, 2010

Samos Music

Bacon Board: FV-1 Based stereo FX board with socketed EEPROM.

Wednesday, November 24, 2010

monty posing in the sun

enjoy these last few mornings on the porch while you can, winter's coming!

Tuesday, November 16, 2010

i'm ordering replaacement carriage belts

only $3.95 at make sure you measure your belt's widthand length. get single-sided.

Tuesday, November 2, 2010


it looks like a baby dinosaur coming out of the earth

Sunday, October 24, 2010

Bent St.

... like Sesame St., but beepier!

Monday, October 18, 2010

quicksheet for electric eel knobs

6 pots anywhere from 1K to 100K

quick sheet for electric eel switches

8 momentary contact, non-tactile, SPST, DPST, or DPDT.

Sunday, October 17, 2010

electric eels workshop

building eels at boston music hack day

zoz demos proper technique

alex puts finishing touches on

alex had most original genrator design

building electric eels

Joe and Justin hack away!

Saturday, October 16, 2010

tom's almost done

electric eel building workshop

alex wins the prize for most original design

the accordian with wings instrument... new in 2010!

Zoz playing electric eel

just after I shot this foto, Zoz broke the handle off!!!

how to park anywhere you want

cost of printing patch vs.lifetime of free parking...

burnkit firesup withsome coffee

we went to dunkies but the guy behind the counter wasn't wicked retahded and he didn't hook us up:(

Friday, October 15, 2010

tear it up and throw it away

no really it's a good regulator, this circuit board just had the wrong pinout

if your circuitboard doesnt work

rippedup circuit board

Wednesday, October 13, 2010

4 different types of pushbutton switches

I love haunting surplus.

top of platform board

combines rectifier, amplifier, and regulator

sharpest wiring

wire me

halfway there

six eletric eel and platform boards


build this and you're all set.

eel wiring

sharper version

Tuesday, September 14, 2010

Music Technology

VexFlow - an easy way to edit guitar tab online. Looks good. Can someone try it and let me know?

1-Bit Groovebox on Make Blog. No one told me?

Tom Oberheim is re-releasing the Oberheim SEM (Synth Expander Module). It's essentially a single synthesizer voice. Price is $899, $599 version available of just electronics. Box still looks good. Not sure if this filter can go fat. I have heard good OB-12 sounds. Front panel of the SEM (same as re-release):

Special PVC fittings or making furniture/sculpture/vehicles/etc from regular hardware store PVC pipes.

Tuesday, March 23, 2010

last few days:

buck switching supply works, but needs high startup voltage.

going to insert a boost converter, or increasing ac multiply stages.

tried ac multiplier stages, but didn't work well at 4x, w/ 33uF capacitors. Those should actually be pretty ideal for working at this frequency range, but perhaps the current capacity was dramatically reduced? It seemed to be larger with larger output caps, but I need to look at this again tomorrow :)

Sunday, February 28, 2010

OK! Whew! The proposal critique on Friday was pretty intense. Big, Huge thank yous to all of my fellow students who were supporting me on that day.

One of the things that came out of the critique was dimensionality and causality. In short, it's not enough to simply have the Decay of the instrument coupled to the input power. I need to come up with a way of connecting a larger number of expression points, or dimensions of control.

Anyway, the problem of mapping, as Joe Paradiso calls the coupling between sensor signals and synthesis needs to be resolved here. Prior to the presentation, I had culled a sketch of a simple circuit for combining the output of three generators, such as those prototypes listed in my Generators chapter. It belongs to that special family of electronic synthesis circuits which does not require a microcontroller, but the complexities of its tuning remain to be explored. Would anyone like to see some equations related to this sort of thing? They would belong to a family of non-linear summing circuits comprised of transient, audio-frequency signals of seventh or ninth order combining in three-dimensions. Expected frequency ranges would be 0-200Hz. The entire system would be reverse-transformed through the delta robot equations of motion.

But now that additional curiosity has been raised in this area, I have been considering new multi-generator configurations in which N motors are mechanically connected and attached to various points of the analog synthesis circuitry. For example, one dimension powers the oscillator, the second dimension powers the filter, and the third dimension powers the amplifier.

I have put together some generators capable of producing power from multi-dimensional gestures, including the inverted delta robot, in which linear movement is translated into a complex (yet predictable!) non-linear movement. I predict people will like that better because of a conversation I had with the band OK GO! As performers, video actors, and composers, they are familiar with digital media technology in video as well at least to some extent modern synthesizers. They requested that any one control, such as a slider or knob, NOT map to any single synthesis parameter, but to a group of them. A story accompanied this request, which was centered around the topic that two people can play the same piece of music and it could come out completely differently. They were visitors of the kind I especially relish because they are currently performing and have lots of experience.

also, wouldn't it be cool to have a "basketball generator" which is like a delta robot, but springs back?

In the meantime, the latest conversion algorithm for arbitrary audio into 1-bit continues to evolve. As my friend told me this weekend, "You've been approximating waveforms for 10 years!"

Thursday, February 25, 2010

some new code for approximating arbitrary sample waveforms with 1-bit unit steps:

received a great many Pictures from Peter Bennett from the January workshop at TEI. Thank you very much, Peter! I will be going through these soon.

Some light jitters now as I rehearse for the Thesis Proposal Critique tomorrow morning.

Wednesday, February 24, 2010

xferred pix of the stefan & noah build, began sorting them.

Developing presentation for Friday February 26th, 2006, at 11 AM in E14-633.

Went through dry run of presentation today with the boys of CompCult. Lots of good feedback. Thank you guys.

Also, the hub design for the NEMA17 D-Shaft has been updated.

Tuesday, February 23, 2010

I've added some dynamic range tests for the Violin-Shaped Electric Eels:

And a graph of the Impedance of the inexpensive JVC/Parts Express Speaker which we have ordered a number of for this research:

Uploaded graph of JVC Loudspeakers