Gaussian White Noise¶
- Author or source: uh.atsopten@egamer
- Created: 2002-08-07 16:23:28
notes¶
SOURCE:
Steven W. Smith:
The Scientist and Engineer's Guide to Digital Signal Processing
http://www.dspguide.com
code¶
1 2 3 4 5 6 | #define PI 3.1415926536f
float R1 = (float) rand() / (float) RAND_MAX;
float R2 = (float) rand() / (float) RAND_MAX;
float X = (float) sqrt( -2.0f * log( R1 )) * cos( 2.0f * PI * R2 );
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Comments¶
- Date: 2002-08-28 02:05:50
- By: gro.sdikgninnips@nap
The previous one seems better for me, since it requires only a rand, half log and half sqrt per sample.
Actually, I used that one, but I can't remember where I found it, too. Maybe on Knuth's book.