Flanging: Creating A Flange Audio Effect

Have you ever used the flanger effect in a radio jingle? Where does the name come from and how was it achieved in the days before digital audio workstations? Audio engineers would use two separate tape machines and place the audio on one slightly out of sync (by a few milliseconds) using their thumb to slow down one machine. I demo aural flanger and 'hell's chorus' in this episode - some effects that come preloaded in Adobe Audition CS6.