04-noise-generators.py - Different pseudo-random noise generators.
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There are three noise generators (beside random generators that
will be covered later) in the library. These are the classic
white noise, pink noise and brown noise.

Noise:
White noise generator, flat spectrum.

PinkNoise:
Pink noise generator, 3dB rolloff per octave.

BrownNoise:
Brown noise generator, 6dB rolloff per octave.

Use the "voice" slider of the window "Input interpolator" to
interpolate between the three sources.

.. code-block:: python

    from pyo import *
    
    s = Server().boot()
    
    # White noise
    n1 = Noise(0.3)
    
    # Pink noise
    n2 = PinkNoise(0.3)
    
    # Brown noise
    n3 = BrownNoise(0.3)
    
    # Interpolates between input objects to produce a single output
    sel = Selector([n1, n2, n3]).out()
    sel.ctrl(title="Input interpolator (0=White, 1=Pink, 2=Brown)")
    
    # Displays the spectrum contents of the chosen source
    sp = Spectrum(sel)
    
    s.gui(locals())