Receiving OSC messages as list of audio streams
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**04-receive-list.py**

OscListReceive receives list of values over a network via the Open Sound
Control protocol. It converts the values as audio streams that can be used
to control audio process.

.. code-block:: python

    from pyo import *
    
    s = Server().boot()
    
    source = SfPlayer("../snds/flute.aif", loop=True, mul=0.7)
    
    # Receives a list of two values from a TouchOSC's XY pad and converts
    # them as audio streams. All streams for a given address can be retrieve
    # with the syntax: rec[address]. One can access the individual streams
    # for an address with slicing: rec[address][0], rec[address][1], etc.
    rec = OscListReceive(port=9002, address="/4/xy", num=2)
    
    # Sets initial values for the OSC streams. This allow the program to run with
    # minimal behaviour even if no message have been sent on this address.
    rec.setValue("/4/xy", [0.5, 0.5])
    
    # Assign the value on the X axis to the drive parameter, and
    # the value on the Y axis to the slope (lowpass filter) parameter.
    disto = Disto(source, drive=Sqrt(rec["/4/xy"][0]), slope=Sqrt(rec["/4/xy"][1]), mul=0.5).mix(2).out()
    
    s.gui(locals())