[sdiy] Attack of the Newbie II: Questions

[Andre Majorel]

On 2001-11-10 10:00 -0500, John Greczula wrote:

> 2. I am interested in building some noise gate circuitry, specifically
> for running analogue drum sounds through. Would anyone out there know of a
> proven schematic for such a thing? It does not need an attack control as I'd
> want the gates to open as fast as possible. I would say input key triggers
> wouldn't be necessary either, as long as the leading edge of the incoming
> audio signals won't get cut off. MOST importantly - it needs to be silent
> when the gates close! I had a unit that featured 12 gates (manufactured by
> John Oram!) in a single space rack which was a dream, but when the gates 
> closed, you heard:
> 
> ffffffip! (quite annoying, so I got rid of it)
> 
> So, I'm on the hunt for something that I can build that won't have this 
> 'problem'.

I think your problem is release time. The gate should not close
instantly but gradually, in, say, 100 ms.

-- 
André Majorel <amajorel at teaser.fr>
http://www.teaser.fr/~amajorel/