MATRIXSYNTH

SK-Synth: A subtractive FPGA synthesizer

via stekern on this electro-music.com thread:
"This is a project I have been working on for a while.
It is a subtractive synthesizer implemented in an FPGA.
Features:
* 2 DCO's with sawtooth, square, triangle and sine waveform generation
* LFO that can be modulate the filter, amplitude or pitch. Possible waveforms are: sawtooth, square and triangle.
* LP-12 filter with adjustable frequency and resonance.
* Filter envelope
* Amplitude envelope.

I have been using a Avnet spartan 3A devboard with a breakoutboard with midi connector and a I2S DA-converter.
In this device the polyphony is set to 8 voices, but it is easily adjustable in the VHDL-source code. I also have received reports that it is easy to implement several SK-Synths to achieve multitimbrality (on a spartan-3e board).

The synth is controlled by a computer application written in Qt and it runs on both Linux and Windows.

The source code for the synth and the controller application and schematics for the breakoutboard can be found in my SVN-repository here
Here is a zipped SVN-snapshot from 2010-08-05"
Samples at electro-music.com

Bc16

flickr by jooksi

"Skickat från min iPhone"

We rock the show.

flickr by Analogue Solutions

Lego party

Action Research Synthesizer

flickr by cdsessums

"Action Research Synthesizer Keyboard Effects Green Light Bones"

ID the synth.

LIBadass 2010

YouTube via djshano | August 04, 2010

"Lightning in a bottle first experience was amazing! alot different then other festivals in that more tiny and you get to know the crowd."

via Auditory Canvas
"In the meantime, here’s some video of myself and Jillian Ann performing at LIB 2010."

Yamaha CS 5 Analog Monophonic Synth

via this auction

Roland Promars MRS-2 duo-phonic analog synthesizer

via this auction

ROLAND JUNO-60

via this auction

"A classic 6 voice DCO analog synthesizer with the ability to save patches. Lovely warm analog sound with the stability of the DCO's."