AW: [sdiy] converting white noise to pink noise

Ullrich Peter Peter.Ullrich at kapsch.net
Mon Mar 3 14:57:14 CET 2008


Wikipedia says 3dB/octave filteres white noise... Pink noise sample is also there:

http://en.wikipedia.org/wiki/Pink_noise

Ciao
Peter

http://www.ullrich.at.tt


-----Ursprüngliche Nachricht-----
Von: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-bounces at dropmix.xs4all.nl] Im Auftrag von Tim Daugard
Gesendet: Montag, 03. März 2008 14:22
An: ahlist; synth-diy at dropmix.xs4all.nl
Betreff: Re: [sdiy] converting white noise to pink noise


> In my naivety, I assumed pink noise was just "filtered" white noise. I
> now know it is much more than that.

Close enough. I had seen a filter network to convert white to pink, but I haven't found it in my links yet.

> However I thought I would still ask - is there any way to take an
> existing source of white noise and create a circuit from it that
> outputs pink noise?

I suspect that a 6db per octave would be sufficient for your needs. As anyone listened for the difference between pink noise and 6db filtered white noise?

Tim Daugard
AG4GZ 30.4078N 86.6227W Alt: 12 feet above MSL http://home.sprintmail.com/~daugard/synth.htm
http://home.earthlink.net/~synthfred/h_toctop.htm (Fred's online edition)

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