10-handling-channels-3.py - Random multichannel outputs.
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If `chnl` is negative, streams begin at 0, increment the output
number by inc and wrap around the global number of channels.
Then, the list of streams is scrambled.

.. code-block:: python

    from pyo import *
    
    # Creates a Server with 8 channels
    s = Server(nchnls=8).boot()
    
    amps = [0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4]
    
    # Generates 8 sine waves with
    # increasing amplitudes
    a = Sine(freq=500, mul=amps)
    
    # Shuffles physical output channels
    a.out(chnl=-1)
    
    s.gui(locals())