26 Sep
2009
26 Sep
'09
12:32 p.m.
On Thu, 2009-07-09 at 10:24 -0700, Ken Restivo wrote:
Hmm, thanks. Well after digging into it a bit, it
seems as though a
proper "wah" effect is an LPF with a resonant peak at the rolloff
point:
http://www.geofex.com/Article_Folders/wahpedl/wahped.htm
Apparently very easy to do in hardware (2 transistors, couple caps,
and an inductor), but I'm not sure where I'd find a LADSPA plugin with
this particular frequency response characteristic.
Not *quite* so simple, because the resonance increases as you sweep the
frequency up. You're increasing the gain of the amplifier quite a
bit...
Gordon MM0YEQ