AdrianFreed's blog

Augmented Electric Guitar

Experimental surface sensing for fingerstyle players

Better Arduino alternatives

I don't use the stock "official" Arduino boards for my work. The $18 teensy 2.0 is smaller than any of the stock Arduinos, has more A/D pins than any of them except the Mega, has more memory, more PWM pins, full speed USB serial support and has a more accurate crystal cock instead of a resonator.

This is not a vanity web site

This is not a vanity web site. I am tuning the design and content of the site to serve you, the visitor, with the fruits of my creative output which are tools and recipes for the most part.

I am in the middle of the first phase of site development, implementing best practices in web interaction using ajax, css, javascript and various drupal modules. During the second phase, to start in earnest next year, I will upload more content drawing equally froom my past work and ongoing projects.

DIY Folk Harp

I built this from a MusicMaker's kit. THe wood is mostly cherry with a spruce plywood soundboard.

Battery and Power Supplies you can Sew

A collection of power sources for e-textile and wearables projects.

Audio I/O programming on SGI IRIX

Integrating Sound & Graphics: Systems Issues

This note is abstracted from my 1996 Siggraph Tutorial. The media library it is based on is documented here.

Real-Time Issues

A major advantage of using dedicated hardware such as sound cards and MIDI modules is that real-time perormance and reliability issues are taken care of in the boxes.

Sewn, wearable, etextile, fabric multitouch

Piezoresistive fabric is sandwiched by sewn rows of vertical and horizontal pads using a basic sewing machine's custom embroidery pattern.

Embroidered Wireless Ball Inclinometer

This wireless variant of Hannah Perner Wilson's fabric tilt sensor uses embroidereded high electrical resistance thread . I designed the tool path to create a resistive track from the patches that can be used as a potential divider . This results in a more continuous estimate of the ball location than is suggsted by the six apparently-discrete patches.

Foucault "Knowledge is not for knowing: knowledge is for cutting."

This is why I find current historical accounts of the pioneers of electronic music so unsatisfying. So many of them use "know-that" and "know-who" accounting cutting the individual from their creative context to fit the facts into the "creative, lone genius inventor" frame. They dont fit as soon as "know-how" and "know-why" accounts are included.

"El Querreque" the Huapango musical rhythm and dance steps

"Classical huapango is characterized by a complex rhythmic structure mixing duple and triple meters
which reflect the intricate steps of the dance . When the players sing ( in duo , on a falsetto tone )
the violin stops, and the zapateo ( heels rolling on the floor ) softens.
The huapango is danced by men and women as couples; the men sing, the women do not.

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