[sdiy] VC GLIDE and ADSR

harry bissell harrybissell at prodigy.net
Sat Apr 22 04:29:48 CEST 2006


Why would that be a two-pole response. I'd think the "glide" would be
a single RC (one pole).

I call a slow change (used as a CV) "glide" whether it is linear or 
otherwise...

And a "slew limit" a type of audio rate distortion (that IS linear)

H^) harry


Cornutt, David K wrote:
> *From:* megaohm [mailto:megaohm1 at gmail.com]
>  >  Glide and slew limiter. What's the difference? 
>  
> As I understand it, a conventional glide circuit is basically a two-pole
> low-pass filter, so its response is that of a discharging RC circuit:
> when the input changes, the output changes rapidly at first, and then
> more slowly as it approaches the input voltage.  A proper "slew limiter",
> in my mind, should be linear in response: When the input changes,
> the output should change at an absolute maximum V/sec until it
> reaches the input voltage.  (Of course, if you use this on a pitch CV
> in a V/oct system, it will give you a non-linear response with respect
> to pitch.)
>  
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