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Re: Code for generating 1/f^alpha pink noise

by Sampo Niskanen <spniskan@[EMAIL PROTECTED] > Oct 15, 2008 at 09:13 AM

Thanks for all the input.


> 1) When alpha = 1, how do your results compare to the Voss-McCartney
> algorithm?

I haven't compared this method to the Voss-McCartney method.  In my 
application I required 1/alpha^(5/3) noise, which cannot be generated by 
the Voss-McCartney algorithm (or at least I couldn't figure out how to 
modify it in such a way).

I haven't compared the AR and MA methods either.  I'm no DSP expert and 
once I had a working filter that produced good enough results I went 
back to my original project.  :)  In fact, I decided to use only a 
two-pole filter in my application since I didn't want the values 
deviating from zero for long periods of time.

Anyway, I hope the code is useful to others as well.

-- 
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 /____\   Sampo Niskanen <=> sampo.niskanen@[EMAIL PROTECTED]
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 13 Posts in Topic:
Code for generating 1/f^alpha pink noise
Sampo Niskanen <spnisk  2008-10-13 09:31:43 
Re: Code for generating 1/f^alpha pink noise
Andor <andor.bariska@[  2008-10-13 08:37:58 
Re: Code for generating 1/f^alpha pink noise
Andor <andor.bariska@[  2008-10-13 09:05:44 
Re: Code for generating 1/f^alpha pink noise
"SteveSmith" &l  2008-10-13 13:53:41 
Re: Code for generating 1/f^alpha pink noise
"Stacy" <sta  2008-10-14 10:18:42 
Re: Code for generating 1/f^alpha pink noise
Jerry Avins <jya@[EMAI  2008-10-14 11:22:34 
Re: Code for generating 1/f^alpha pink noise
Sampo Niskanen <spnisk  2008-10-15 09:13:42 
Re: Code for generating 1/f^alpha pink noise
Andor <andor.bariska@[  2008-10-15 02:23:14 
Re: Code for generating 1/f^alpha pink noise
Sampo Niskanen <spnisk  2008-10-15 19:16:23 
Re: Code for generating 1/f^alpha pink noise
Andor <andor.bariska@[  2008-10-15 02:37:56 
Re: Code for generating 1/f^alpha pink noise
Andor <andor.bariska@[  2008-10-15 15:04:12 
Re: Code for generating 1/f^alpha pink noise
Sampo Niskanen <spnisk  2008-10-16 08:29:05 
Re: Code for generating 1/f^alpha pink noise
Martin Eisenberg <mart  2008-10-20 22:02:49 

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