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Cracks me up…!

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STEREO OPTO-MECHANICAL ENVELOPE FILTER

Optoelectronic panning oscillator (2 channel stereo with “fixed” waveform).

In preparation for a performance that themes around the process of Holography. I have been working on a new device that can take a stereo or mono-split audio signal and create two independent output channels with waveforms using gain attenuation.

All this is accomplished using re-purposed laser pointers and a PC fan and couple of photo cells. Using CV to control fan speed=frequency of channel oscillation. Waveform is created by the shape of the fan blade. In theory, the angle of the fan this can adjusted slightly producing a shift in the waveform. The motor and lasers are running on a 5v circuit.

The result is a left to right or right to left stereo ping pong panning effect.

OPTO-MECHANICAL ENVELOPE FILTER vid .2 w/GALVATRON G1 from DUMPTRUCK on Vimeo.

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Howdy folks,
Here is a partial recording of a live bit I did on Saturday at OTHER CINEMA. In collaboration with no other than Craig Baldwin on visuals. Sorry, There is no video… Forgive me it is only parts 2/3 of 3. Recording issues…
Also, I was using my new 2 channel opto- mechanical envelope filter inline post recorder. so, the recording is only mono too.
More to come…
Enjoy!

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ELECTRONIC CABARET SAT. 10/18: OPTRONICA 2: GEDULDIG/MOON + BALDWIN/DUMPTRUCK + BECKER + OC

ELECTRONIC CABARET SAT. 10/18: OPTRONICA 2: GEDULDIG/MOON + BALDWIN/DUMPTRUCK + BECKER + OC hosts the NorCal return of Bruce Geduldig of Tuxedo Moon! Bruce packs the last half of the program with a plethora of rarely- and never-seen TM material, including Ghost Sonata and the North American premiere of Tapeman. ALSO sublime Super8-sourced performance-visuals from Cell Life, Frankie and Johnny, and Bound Feet. Opening, Tommy Becker moves effortlessly between keyboards and computers in his new media confessionals, Lemons and Primary Colors. Craig Baldwin and Sam DUMPTRUCK Manera conspire to fuse and confuse the senses in the SF debut of their 3-D Nth Dimension. PLUS: Gesture Piece, Vicki (People Like Us) Bennett’s marvelous trans-cinema montage, sound-tracked by 7 sonic maestros (incl. Matmos, Wobbly, and Jason Willett). AND Negativland’s Booper, Soviet Theremin, and the Dream Machine. $7.77.

http://www.othercinema.com/

​This Saturday 10/14:

992 Valencia St, SF CA 94110​

​Please attend if you are free!

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Brutal Sound Effects Festival #78

DUMPTRUCK LIVES!!!!

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New setup I’m working on

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Here comes a re-post!!

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2 channel optoelectronic envelope filter demo:

sine wave generated by Audacity

I’m adding a switch to reverse voltage polarity to motor in order to toggle left-right or right-left panning effect.

more info: http://theanalogdump.tumblr.com/post/97484100531/optoelectronic-panning-oscillator-2-channel

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New Distortion Filter I’ve been working on.
Video and audio clips to come!!…

Please forgive the gigantic stomp box… Its a repurposed modem or video thing.

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3:1 Channel (*passive) Mono Audio summing mixer with kill switch.

This little guy I put together for the my set-up for a band Im playing with.

I needed a kill switch in-line between a passive 6 channel mixer and my amp. So I decided to drop the 6 channel mixer and make a 3 channel one with kill switch built-in. Enclosure is from a early 90s video filter.

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NEW!!

DUMPTRUCK tapes!!

Side A:Live recordings
Side B:Home Recordings

This one is spoken for. But, there will be more to come!!

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Optoelectronic panning oscillator (2 channel stereo with “fixed” waveform).

In preparation for a performance that themes around the process of Holography. I have been working on a new device that can take a stereo or mono-split audio signal and create two independent output channels with waveforms using gain attenuation.

All this is accomplished using re-purposed laser pointers and a PC fan and couple of photo cells. Using CV to control fan speed=frequency of channel oscillation. Waveform is created by the shape of the fan blade. In theory, the angle of the fan this can adjusted slightly producing a shift in the waveform. The motor and lasers are running on a 3v circuit.

The result is a left to right or right to left stereo ping pong panning effect.

Top image: Fan and motor in foreground. Laser emitters and collecters in back.

..Pardon the rough images.. more images and video to come soon.. I’m off searching thrift stores for toy hobby construction kits to use as prototype chassis…