polyphonic synth how?

jirko · Joined: Dec 15, 2009 Posts: 59

I have made a small midi synth class and I was wondering how can I make it polyphonic?

Every help will be much appreciated!

jordan · Joined: May 16, 2011 Posts: 5 Location: Brooklyn, New York

basically what you do is create an collection of ugens and use the midi instructions to select their frequency, chuck and unchuck them as needed. There's an example here:

http://chuck.cs.princeton.edu/doc/examples/midi/polyfony.ck

The comment text says there's an array of ugen's, but... there's not. There's a set of 20 handlers, each of which closes over the declaration for a ugen. There's not actually an array of ugens, there's an array of event objects. But the concept is the same; you create your ugens up front, and use midi instructions to manipulate them, chucking them into a chain the eventually makes its way to dac to get sound, and then unchucking them to turn it off.