MATRIXSYNTH

POLYSTEPARP.MOV

YouTube via evercycling | October 18, 2010

"First try using ipad running "Step Poly Arp" thru Wifi Midi and a Virus TI polar with no processing."

iPads on Ebay
iPads on Amazon

Expert Sleepers: ES-1 Ready to Ship

flickr By Analogue Haven

"Expert Sleepers are about to send us a shipment of both versions of the ES-1. Shown here are the db25 version but we're getting the one with jack inputs also. LINK for more info: www.analoguehaven.com/expertsleepers/es-1/ . We'll update the shopping cart on our site once we receive stock."

supersonic electronic

via FFFFOUND!

Not to be confused with VLAD

l

YouTube via OfficeNothing | October 18, 2010
Reaktor Sprial and various soft synths.
via Resonant Filter

loopfest twins

YouTube via gabbyhappy | October 18, 2010

"Gabby La La performs "Twins" from her album "Be Careful What You Wish For..." at Y2KX LoopFest in Santa Cruz CA on October 16 2010! She uses Nintendo DS Lite Korg Synth + ukulele + sitar + voice to create the song we all know and love!"
via http://korgds-10.blogspot.com

Arduino Wavetable Oscillator Demo

YouTube via surgesg | October 19, 2010

"Using an Arduino, voltage-to-frequency converter, and digital-to-analog converter to make a wavetable oscillator. The sinewave output is stored in a memory array on the Arduino, and read out at varying frequencies - which are determined by a voltage input. See more at http://www.gregsurges.com/"

Bell System Technical Journal, 1922-1983

http://bstj.bell-labs.com/BSTJ/

"The scientific discoveries and technological innovations produced by Bell System research and engineering were critical not only to the evolution of global telecommunications but, more widely, they had a considerable impact on the technological base of the global economy and, indeed, on our daily lives.

Bell Labs is the source of many significant contributions, of course, in the area of telephony, but also in memory devices, imaging devices, system organization, computers and software technology, as well as acoustics, optics, switching, transmission, wireless and data communication....

With this posting of the Bell System Technical Journal from volume 1 issue 1 in July 1922 to the final issue published in December 1983, we are pleased to be able to open the vault of this knowledge to our global technical colleagues."

This one popped up on the AH list. You'll find a number of papers including "Synthesis of Voiced Sounds From a Two-Mass Model of the Vocal Chords" and "Thermionic Vacuum Tubes and Their Applications"

via cheater cheater:
"Page 57 and lead up on page 56: this is a tuned band pass filter with variable Q. You just need one tube, one variable capacitor, and one variable inductor. Works well up to "2,000,000 cycles".

Also see the next point on page 60: Feed-Back Amplifiers. Looks fairly interestingly like a ladder filter, don't you think? And uses resistances. This means: voltage control!!"

Update via Eric Barbour of metasonix in the comments: "No. It is not a 'ladder filter'. This was a very early article about tube amplifiers, and all the discussion focuses on their use in telephone installations, primarily as repeater amps."