[music-dsp] DSP modeling of the Niveau filter

robert bristow-johnson rbj at audioimagination.com
Tue May 26 01:51:32 EDT 2009


On May 25, 2009, at 12:58 PM, Lubomir I. Ivanov wrote:

> From: "robert bristow-johnson" <rbj at audioimagination.com>
>
>> do you have a schematic of the "Tilt" filter?  if it's simple,  
>> can  you draw it here (with ASCII art) or point to a page that  
>> shows it?
>
> There is a good example at "headwize":
> http://www.headwize.com/projects/equal_prj.htm
> Note that the given curcuit is supposed to provide the "mirrored  
> tilt" (in regard of magnitude)
> there are also "wien bridge"- resonant, tube, "baxandall" etc.

Lubomir, this is very good.  I've never seen this nice collection of  
analog history.  i sorta wish there were H(s) transfer functions  
(because i'm lazy), but perhaps i can just figure it out.

--

r b-j                  rbj at audioimagination.com

"Imagination is more important than knowledge."






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