Xref: utzoo comp.music:2375 rec.music.synth:18129
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From: sseidman@polyslo.CalPoly.EDU (The MIDIman)
Newsgroups: comp.music,rec.music.synth
Subject: Looking for Equations for Sounds
Message-ID: <278a4f64.4051@petunia.CalPoly.EDU>
Date: 8 Jan 91 23:01:56 GMT
Reply-To: sseidman@polyslo.CalPoly.EDU (The MIDIman)
Organization: PyraMIDI Studios -- San Luis Obispo
Lines: 23



For my Senior Project, I am writing a simple type of Additive Synthesis
program, which will transfer the sound created to a sampler.  It will
be Additive Synthesis, but with some FM capabilities.  Basically, the
user creates carriers, and then can create modulators which feed into the
carriers.

My problem is finding the shape of the sound/graph.  For JUST carriers, I
would think I could just add up all the Sine equations, and this would
give me the point on the graph at a point.  But I am not sure how to
find the equation when I start adding in modulators.  Would it be something
like: Sin (Sin X) X + Sin (Sin X) X, with the Sin X in prantheses being the
modulator?  Does anyone have any references of books to look at?

Thanks for any help.


-- 
     /\     PYRAMIDI            |      sseidman@polyslo.calpoly.edu
    /--\    RECORDING           |          Steven R. Seidman
   /----\                       |  Tangerine Dream, Level 42, Vangelis, Jarre,
 Where Analog and Digital Meet  |  Mannheim Steamroller, Yes, Genesis, ...