Flanger is an audio effect produced by mixing two identical signals together, one signal delayed by a small and gradually changing period, usually smaller than 20 milliseconds.

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What is the mathematical model for simulating flanger?

Assuming the trigonometric functions use radians, a basic constant tone is represented by s(t) = a * sin(2πf). How do I use s(t) to simulate flanging? I've tried (s(t) + s(0.999t) / 2, (s(t) + s(t + ...
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What's the difference between a Flanger and a Phaser?

Every Multi-effects pedal comes with a bunch of different Phasers and Flangers. While I can hear the difference between them when comparing directly, I could never point out what it is that makes them ...