<div dir="auto">Interesting project! I have been playing with the same idea for a while. It's quite a challenge to replace keyboards with buss bars typically used in divide down architectures. The range probably does not need to cover alle 128 midi notes, but at least the range of a stringer. A large array of quad VCAs (2164) could do the trick, but is rather costly. Via mcu you would be able to combine VCAs for multiple octaves on a single key (something normally done with multiple buss bars).<div dir="auto"><br></div><div dir="auto">An alternative architecture I wondered about is a Bottom Octave generator and Saw wave multipliers to achieve the higher octaves. In theory it could give you saw and square waves simultaneously for all notes, but I don't know if it can be implemented in analog reliably. Has anyone ever tried it before?</div><div dir="auto"><br></div><div dir="auto">Rutger</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Op vr 9 jul. 2021 13:18 schreef francesco mulassano via Synth-diy <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi, I'm thinking of creating a string machine starting from a project from the 70s. Basically, a replica of an analog string machine with new components. The tricky part I think is the full polyphony with the MIDI to CV conversion. There will be no keyboard in the instrument but there will be midi input connection.<br><br>Do you have any idea, project that does not use commercial modules that would be impossible to implement in the circuit?<br><br>Thank you<br>Francesco</div>
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