"Flanger" redirects here. For the musical project, see Flanger (band). For the railway vehicle, see Flanger (railroad).
Example of flanging
A short sample followed by two flanging versions
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Flanging/ˈflændʒɪŋ/ is an audio effect produced by mixing two identical signals together, one signal delayed by a small and (usually) gradually changing period, usually smaller than 20 milliseconds. This produces a swept comb filter effect: peaks and notches are produced in the resulting frequency spectrum, related to each other in a linear harmonic series. Varying the time delay causes these to sweep up and down the frequency spectrum. A flanger is an effects unit that creates this effect.
Part of the output signal is usually fed back to the input (a re-circulating delay line), producing a resonance effect that further enhances the intensity of the peaks and troughs. The phase of the fed-back signal is sometimes inverted, producing another variation on the flanger sound.
Example of flanging A short sample followed by two flanging versions Problems playing this file? See media help. Flanging /ˈflændʒɪŋ/ is an audio effect...
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