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I am a musician myself (voc, perc), but I am not a synthesizer specialist. Howerver, AFAIK, in the early days of sound synthesis, all sounds were derived from simple waveforms (like sine, square, triange, chainsaw (like triangle but with a steep upward/downward flank), and so called envelopes (you could call them amplitude operators), which were "imposed" on those waveforms. This envelope was described by four parameters: attack, decay, sustain, and release (or short ASDR).
AFAIK, A and S were linear, and the D and R parts of the envelope where parabolic. A D S R o o o o o o o o oooooooo o o o o o o Later 6 or more parameters where usual. Most of the modern soundcards still have ADSR/FM synthesizers build in. A famous specimen of these was the Yamaha OPL-3 chip all SoundBlaster cards had on them. I hope this is somewhat interesting, ;) In reply to Re^2: Rain - Musical Composition written with Perl (how early synthesizers worked)
by Flexx
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