AVRSynth is a monophonic "virtual analog" synth based,
originally, on the Atmel AT90S8535 microcontroller and was designed
Ziembicki. His aim was to check to see if a simple micro
could be used for sound synthesis purposes. And the result?
The AT90S8535 managed to do all the tasks: front panel switches
and pots services, receiving and processing MIDI messages, and
synthesis architecture is simple:- two DCO's, a DCF, and a DCA. There is also an LFO and an AR/ASR
Since this initial design was made we have taken over the project and updated the hardware to take the
ATMEGA16 as the AT90S8535 is no longer a production item.
AVRSynth was also released as a full unit in a small desktop case utilising a PCB Front Panel. Later the panel design was updated to a quality aluminium panel.
The AVRSynth comprises 2 PCBs:-
- Controller PCB
- Carrier PCB. This PCB accepts all the panel components and so virtually eliminates all wiring
The Controller PCB is available both as a kit and pre-assembled and is ideal for those wishing too provide their own enclosure/front panel and/or wishing to experiment with the code (written in Assembler).