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I always thought it was about using a sawtooth wave with high resonance, high frequency, and a slow modulation of the frequency that moves just a little bit up and down. Very important to use a bandpass filter instead of lowpass though I think.
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Agent Starchild
Durham, NC, USA
Those who share the wealth of their knowledge will end up far wealthier and more loved. Those who use their knowledge as a throne from which to sneer at others will never have a true friend.
Tracks-in-progress (Please help me make these better):
Eve of the Invasion
The Realm of Possibility
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