VioletNoise

class brainmass.VioletNoise(*args, **kwargs)

Violet (purple) noise.

Power spectral density rises with frequency as PSD(f) ∝ f**4 (i.e. beta = -4 in the 1/f**beta convention, giving the amplitude shaping f**(-beta/2) = f**2).

Return type:

Any

__init__(in_size, mean=None, sigma=Quantity(1., 'nA'))