[sdiy] band reject filter

[Seb Carr]

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>From: Tavys Ashcroft <bigtex at cwnet.com>
>To: Synth-DIY list <synth-diy at dropmix.xs4all.nl>
>Subject: [sdiy] band reject filter
>Date: Sun, Aug 19, 2001, 9:49 am
>

> I've noticed that using a band reject filter (I use negative gain on
> a parametric equalizer) and sweeping the frequency sounds a lot like
> a low resonance phaser.  Is this due to the negative interference of
> a phaser cutting out different frequencies as it comes in and out of
> phase?  How exactly does a phaser work, anyway?
>
> -Tavys
A phaser is one or more notch filters, that have there frequency swept up
and down by an LFO, so what you were doing is essentially making a very
crude phaser.

Seb Carr