Flanging

Flanging

An audio effect caused by blending the signal with a copy of that signal at a slight time delay, then modifying the delayed copy, creating a “swirling” sound. This was originally accomplished in analog tape recording by playing the original tape and the copy on two tape machines simultaneously, then physically pressing on the flange of one of the machines to alter the timing of the duplicate track. These days, most flanging is done through delay boxes or digital plug-ins.