MATRIXSYNTH

ELBY-DESIGNS AVRSYNTH 32-BIT

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"The AVRsynth 32-Bit is a monophonic "virtual analog" synthesizer that uses a 32-Bit processor, based on the Jarek Ziembicki design.

The AVRsytnh 32-Bit synthesis architecture is two DCO's, a DCF, and a DCA. There is also an LFO and an AR/ASR envelope generator."

Videos at the auction and previously posted here.

Yamaha CS5

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Vintage 1975 Cordovox Synthesizer CDX-0642 Combo Organ with Shoulder Bag

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Yamaha AN1X "Mini Low Bass"

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YouTube Published on Jun 8, 2012 by synthartist69

I added this video and two others to the playlist posted yesterday here.

EMS Polysynthi "Sounds from the Outer Space"

YouTube Published on Jun 8, 2012 by scienceforce

"This is one of the few and working EMS Polysynthi, produced between the '78 and 79 in ONLY 29 exemplars. As far I know the last Peter Zinovieff work.
Space look... totally amazing, its sound is magic!
It's fully polyphonic with built in analog delay and chorus (both CV/keyboard touch controllable) Two cv-lfo's with many combinations, modulable also from keyboard aftertouch, filter is very very nice selectable from 2 to 4 poles, envelope follower for external signals and many other features.
For me is one of the best polyphonic synthesizers ever made with unique sound and an incredible look.
This is a small space sounds demo with both the enevelopes auto triggered from one cvlfo."

http://zacharcher.com/lab/fseq/fseq-flash.html

Hit the space bar when you get there to start and stop. Experiment with the different controls.

Update via the comments: "You can export formant sequences for the Yamaha FS1r, too: http://blog.zacharcher.com/2011/03/14/a-formant-sequence-editor-in-flash/"