This demo uses 3 saw oscillators slightly detuned. I did detuning the dumb way by subtracting and adding a (small) fixed value from the note number of two oscillators, leaving one alone. This value works pretty well at lower note numbers but doesn't sound good at higher note numbers. A better approach would be to add and subtract a value relative to the note number - I'll do this tonight and upload an update.
I find the VCF to be very good sounding. Listen to the MP3 (VCFDemo.mp3) and let me know what you think...
-- MichaelMarsh - 21 Oct 2003
I like it. Very even tone, may be too perfect to call it VCF!
I think adding a small amount of jitter+noise at cutoff freq would help.
Here is a basic example using only a single saw waveform without any
processing; only VCF and pitch modulated by LFO. I'll try to add some jitter
at cutoff freq later.
-- KarlMousseau - 29 Oct 2003