Music,  Plugins

What is a Flanger?

The flanging effect mixes two identical audio signals. It applies a slight delay to one signal and continuously varies the delay time. Flanging combines two identical audio waveforms with a time delay between them. This then makes an interference pattern where the volume level of some frequencies are reduced. Meanwhile, the volume of other frequencies are increased.

Visually this appears as a series of peaks and notches like a comb. They call this “comb filtering”. Since the delay time is being continuously varied, we get a swept comb filter. We hear the continuous change in the timbre that we recognize as flanging.

a digital flanger and it’s attributes
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