If you are interested have a look at http://python-sounddevice.readthedocs.io/en/latest/examples.html for examples how nice python works even with real-time sound processing.
If you are new to python https://werkraum.ixpa.de/wiki/index.php/Python should be a good starting point.
For my part: I am currently running sounddevice on the rpi2 with the Cirrus Logic Audio Card and it works. For low latency I want to use JACK (Cirrus Logic Audio Card with JACK ) wich is accessible as one host API via sounddevice (https://github.com/spatialaudio/jackclient-python/pull/34 ) but JACK does not work jet.