-----Urspr�ngliche Nachricht-----
Von: Don Tillman <
don@...>
An: <
jhaible@...>
Cc: <
synth-diy@...>; <
motm@egroups.com>
Gesendet: Freitag, 18. Januar 2002 01:12
Betreff: Re: [sdiy] variable slope resonant HPF
> From: "jhaible" <jhaible@...>
> Date: Thu, 17 Jan 2002 02:04:59 +0100
>
> One Slope / Resonance pot:
> ccw end is 6dB/Oct, 12 o'clock position is 24dB/Oct, with
> practically linear action in between. Turning the knob further
> clockwise will keep the 24dB/Oct slope, but also adds resonance.
>
> Very interesting! A variable slope feature on a HPF could be
> extremely useful.
>
> Hmmm... do you implement the variable slope feature by offsetting the
> tuning of the individual stages? Or do you pan between taps at the
> outputs of the individual stages?
The answers are here:
http://www.oldcrows.net/~jhaible/jh5/jh5.html(schematics included - scroll down)
Made more tests this evening - works as intended. Even oscillates.
JH.