Re: [LAU] Wah update

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To: Justin Smith <noisesmith@...>
Cc: <Linux-audio-user@...>
Date: Monday, July 20, 2009 - 5:25 am

On Sun, Jul 19, 2009 at 09:32:21PM -0700, Justin Smith wrote:

I'm either going to find a LADSPA plugin which does this, or hack something together in JACK-RACK or via some custom C using existing plugins.

I haven't the maths skills to write any serious DSP in C, and probably not in PD or Csound either. Whatever I end up with will have to be in C, however, and efficient too, so it can run on a netbook along with many other synths and plugins.

> I think the best way to mimic the wah behavior will probably be to

Tonight I tried every LADSPA bandpass filter I could find, and none came even close AFAICT. Comparing its shape to those of other LADSPA plugins indicates to me that the "Thomas Organ" wah circuit isn't a band-pass after all, just a high-pass with a VERY high Q. So, yeah, I might be able to get pretty close with one ofthe existing LADSPA HPF's and varying the Q, as you suggested.

-ken
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Messages in current thread:
[LAU] Wah update, Ken Restivo, (Mon Jul 20, 3:11 am)
Re: [LAU] Wah update, Andres Cabrera, (Mon Jul 20, 1:07 pm)
Re: [LAU] Wah update, Fons Adriaensen, (Mon Jul 20, 10:59 pm)
Re: [LAU] Wah update, Fons Adriaensen, (Mon Jul 20, 9:57 am)
Re: [LAU] Wah update, Ken Restivo, (Tue Jul 21, 12:12 am)
Re: [LAU] Wah update, Bill Allen, (Thu Jul 23, 10:21 pm)
Re: [LAU] Wah update, Carlos Sanchiavedraz, (Tue Jul 21, 3:56 pm)
Re: [LAU] Wah update, Ken Restivo, (Fri Aug 14, 8:00 pm)
Re: [LAU] Wah update, hermann, (Sat Aug 15, 12:14 pm)
Re: [LAU] Wah update, Arnold Krille, (Fri Aug 14, 8:43 pm)
Re: [LAU] Wah update, Folderol, (Fri Aug 14, 9:19 pm)
Re: [LAU] Wah update, Ken Restivo, (Fri Aug 21, 12:22 am)
Re: [LAU] Wah update, Folderol, (Fri Aug 21, 10:12 pm)
Re: [LAU] Wah update, James Cameron, (Fri Aug 21, 12:29 am)
Re: [LAU] Wah update, Fons Adriaensen, (Tue Jul 21, 1:44 pm)
Re: [LAU] Wah update, Paul Coccoli, (Wed Jul 22, 8:18 pm)
Re: [LAU] Wah update, Julien Claassen, (Mon Jul 20, 6:11 am)
Re: [LAU] Wah update, Ken Restivo, (Mon Jul 20, 6:48 am)
Re: [LAU] Wah update, Julien Claassen, (Mon Jul 20, 7:46 am)
Re: [LAU] Wah update, Justin Smith, (Mon Jul 20, 4:32 am)
Re: [LAU] Wah update, Ken Restivo, (Mon Jul 20, 5:25 am)
Re: [LAU] Wah update, Justin Smith, (Mon Jul 20, 5:33 am)
Re: [LAU] Wah update, Justin Smith, (Mon Jul 20, 5:37 am)