[sdiy] Graphic equalizers

[Scott Nordlund]

Graphic equalizers are based on peaking filters, a totally different topology from the bandpass filters that make up filter banks.  You can only get a boost/cut (with corresponding change in bandwidth) at a certain frequency, so it doesn't split the signal into independent bands that can be independently controlled or split up, etc.
 
They're still good for some tricks (interesting "pseudo-stereo" effects), but no substitute for a filter bank.

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> Date: Wed, 2 Sep 2009 17:49:21 -0700
> From: dixon at interchange.ubc.ca
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] Graphic equalizers
>
> I was just at the local second-hand music store in Vancouver, and there were
> several stereo graphic equalizers for $10 to $35. Do these work as fixed
> filter banks for synths? If not, it might be worth it just for the panel
> components. One Technics model had lovely sliders, in a metallic finish
> very smooth action with a good solid detent in the middle...
>
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