well little luck with making anything useful la AM sounds ie "sounds that mimic natural or
human-made sounds".[1]
had a lot of fun with modulating the modulators though.
Spent a bit of time on a scaling constant distance style AM, had to find the cent to freq ratio, but never felt i really understood whether it was doing what i wanted it to.
Then when mucking about with self modulation, I decided that a divider on it would be great ie pitch shift.
So a short delve into the spectral bidules reminded me of what FFT actually does ie average out frequencies.
This left me wondering what other options there were - I didn't want to use a seperate oscillator because I wanted feedback !!
Alas I decided that it was so much easier using a seperate oscillator and putting a divider onto the freq output of the note extractor, and it was - now my next excitement will be how to effectively change the wave type's of multiple oscillators simultaneously.
Anyway, my bidule featured AM and RM, with a fixed frequency and a moving frequency, and a sort of self modulation - which with the divider worked very well as a scaled movable modulator as well.
bidule is at :http://ednkath.customer.netspace.net.au/am.bidule
http://www.esnips.com/doc/2dee16db-a22c-487b-a8f0-788769eb0bfa/week08_AM-SOUNDS
REFERENCES
[1] Haines, Christian. Week 8 - Sound Generation - AM Synthesis.
Haines, Christian. Audio Arts week 08 lecture. University of Adelaide, 11 September 2007.
"Chapter 3 - Loose Modeling Techniques". Miranda, Eduardo. 1998, Computer Sound
Synthesis for the Electronic Musician, Focal Press.
Reid, Gordon 2000, Synth Secrets - Part 11: Amplitude Modulation, Sound on Sound.
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