1/f Pink Noise
Colored noise spectra — S(f) ~ 1/f^α
Parameters
Noise exponent α
1.0
0=white, 1=pink, 2=Brownian
Sample length
1024
Smoothing (octaves)
3
Generate New
Auto-gen: ON
Power Spectral Density:
S(f) ~ 1/f^α
• α=0: white noise (flat)
• α=1: pink/flicker noise
• α=2: Brownian/red noise
• α=3: black noise
Generation: shape white noise in frequency domain, then IFFT.
Pink noise appears ubiquitously: electronics, music, neuroscience, earthquakes, finance.
Measured slope:
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Theory slope:
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