The Eminent Solina is one of the fameous string synthesizers from the 70’s.
It is based on a paraphonic oscillator, a simple envelope and a phaser.
The oscillators in the original was a divide down structure where you generate the frequencys for the top octave and divide those down by modulo 2 for the rest of the octaves.
Paraphonic means it’s kind of polyphonic but shares some parts of the soundpath.
In this case it’s the envelope shared by all the keys played on the keyboard.
So what does it sound like?
Pretty nice eh?
Build instructions and the full source code for upload in an Arduino Nano can be found at the link to the right top on this page or this link:
My work on these free synthesizers is based on donations from people.
If you find the code useful, please consider a $3 donation to keep future developments open source.
Chips for building DIY synthesizers can be found at: