[PD] Box Muller Gaussian noise
Charles Henry
czhenry at gmail.com
Sun Mar 16 17:31:52 CET 2008
On Sun, Mar 16, 2008 at 10:30 AM, Andy Farnell
<padawan12 at obiwannabe.co.uk> wrote:
> Also, I have no idea how to check the distribution. It sounds the same as
> uniform noise and looks the same in the spectrograph? What gives?
> Do I need to average over a very long time or something to see any
> difference?
It should sound the same and look the same spectrally. There was a
previous discussion on the list about how noise distributions (uniform
vs gaussian pdfs) should sound. Namely, the same :)
To see the difference, you could try to calculate kurtosis values!
I've never had a good use for that one.
http://en.wikipedia.org/wiki/Kurtosis
That statistic will show you the difference between Gaussian and
uniformly distributed noise, and confirm your distribution.
The Box Muller method should be good--that's a very reliable method.
Cheers,
Chuck
>
> Cheers all,
>
> Andy
>
> --
> Use the source
>
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