I got a whole bunch of breadboard cables in the post yesterday and I already completed the breadboard implementation of the audio generating part of the synth, and it sounds great! I cannot hear any noise at all even when using USB power - I am very pleased. I thought it would be a lot harder to get this far. The only current issue is that it does not always boot up as it should, but that is hopefully not too hard to fix.
Next step is to make a proper amplification stage, which I will base on a CMOY design (still with OPA1688 op-amps), and implement MIDI. As soon as I have MIDI then I can start writing the program that makes the synth configurable. First with MIDI CC messages, and later with buttons and potentiometers (that I hopefully can make send CC messages for simplicity's sake).
I'm really looking forward to seeing how your project progresses :)
ReplyDeleteGreat to read this account of a work in progress. Really inspired to have a go myself, motivating to read ! Keep up the good work :)
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