[sdiy] simple noise gate circuit?

[Colin Raffel]

Not controlling a VCO, controlling a VCA.

Here are a couple to get you started:
http://experimentalistsanonymous.com/diy/Schematics/Compressors% 
20Gates%20and%20Limiters/Korg%20Noise%20Gate.gif
http://experimentalistsanonymous.com/diy/Schematics/Compressors% 
20Gates%20and%20Limiters/BOSS%20NF-1.jpg

You could also probably null the bleedthrough through different  
methods for both.

Realistic via a clock filter...
Ring mod via a carrier null...
Nintendo?!

-Colin

On Feb 14, 2006, at 1:41 PM, gregory zifcak wrote:

> hi,
> i'm trying to get rid of bleedthrough on a few devices (realistic  
> reverb, ring mod, nintendo). any ideas for a simple noise gate  
> circuit? i don't mind if it's a somewhat harsh clamping down on the  
> signal below the threshold. it would be fun to have a variable  
> threshold, but if this complicates the circuit i can forget about  
> it. i'm guessing a noise gate is basically an envelope follower  
> controlling a vca; how can i do this with the least amount of parts?
> thanks for any suggestions,
> greg
>
>
>