Hi, Wouldn't it be better to do these kind of measurements in JAAA? Cheers, Andrés On Sun, Jul 19, 2009 at 10:10 PM, Ken Restivo<ken@xxxxxxxxxxx> wrote: > Just a quick update on the wah research. > > A friend owns a Dunlop "Jimi Hendrix Wah", which says it is the "Original Thomas Design", by which I assume they mean to claim it's the same design as the Thomas Organ Wah, formerly Vox. > > This website's describes the frequency response as a lowpass with a resonant peak: > http://www.geofex.com/Article_Folders/wahpedl/wahped.htm > > So here is what JAPA says it does (and I believe JAPA more than some random website): > > When fully closed, it's a bandpass, with a VERY high Q! > http://restivo.org/misc/lowend-jimi.png > > But, wait, when I open it up, suddenly it becomes more like a highpass, but with a lot of resonance: > http://restivo.org/misc/midrange-jimi.png > > When it's fully opened, it's definitely a highpass, but with a helluva peak: > http://restivo.org/misc/high-jimi.png > > So, not only is the opposite of what that article says, but it's also kind of non-linear. I'll poke around the various LADSPA plugins and see if I can find something nearly like this. > > Another guitar-player friend has a different wah (IIRC, either a "Cry Baby", or a Morley), and I'll see if I can run his through this and see what it comes up looking like. > > -ken > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user > -- Andrés _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
