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MacWorld 1996 July
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Macworld (1996-07).dmg
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Resource
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SoundEffects 0.9.2
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Effects Folder
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High Pass FIR
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High Pass FIR.rsrc
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TEXT_1000_About.txt
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1994-11-21
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310b
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The High Pass effect module takes the difference between every sample and the preceding one, and stores this difference in place of each sample.
The equation is
y(n) = [x(n) - x(n-1)]/2,
where y is the output and x the input.
The response is that of a high-pass filter, with a zero at z=1 and a pole at z=0.