Re: Flangers

[Dan Levitin <levitin@xxxxxxxxxxxxxxxxxx>]

On Mon, 31 Aug 1998, Brian Gygi wrote:

> On Mon, 31 Aug 1998, Alain de Cheveigne' wrote:
>
> > I'm not sure what is the processing within a "flanger".  Is it a kind of
> > time-domain comb filtering (ie subtraction or addition of the signal to
> > itelf after a delay)?
>
> That's precisely what a flanger does.  If I remember the origin of the
> term correctly, before multi tack tapes, engineers would double track
> vocals by running two tape decks simultaneously and selectively put their
> finger on the flange of the tape reel to slow down one of the tracks.
>

Yes.  This technique was actually invented by Geoff Emerick, the Beatles'
recording engineer.


Daniel Levitin
Center for Computer Research in Music and Acoustics
Stanford University

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