Since you seem to like to play with it and develop it even further, has it ever occurred to you to implement resynthesis with variable nr. of partials into it?
I still remember those adds for a "re-synthesiser" from the early 90s/late 80s. That was quite an expensive piece of gear at the time. I can't recall its name right now, but it had the coolest fluorescent amber screen.
edit: This is it!
Some relevant info: http://www.dspdimension.com/technology- ... synthesis/ and http://www.dsprelated.com/showmessage/97768/2.php Just googled "dsp audio resynthesis". Vertigo uses FFT calculations for it as far as I know...
"Vertigo from DiscoDSP does nice resynthesis IMO. http://www.discodsp.com/vertigo/ There are some others, too. "Morphine" from Image-Line, and "Cube" from Virsyn systems. I was considering buying Vertigo at the time... but it didn't seem very flexible as a synth, and I demoed all three but found them rather unexciting as synths, but the resamples sounded really cool!
Cheers!







