via stekern on electro-music.com where you will find more info including samples and download links."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.
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