As long as the machines were synchronized, the mix would sound more-or-less normal, but if the operator placed his finger on the flange of one of the players ( hence " flanger "), that machine would slow down and its signal would fall out-of-phase with its partner, producing a phasing effect.

As long as the machines were synchronized, the mix would sound more-or-less normal, but if the operator placed his finger on the flange of one of the players ( hence " flanger "), that machine would slow down and its signal would fall out-of-phase with its partner, producing a phasing effect.

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