PyAudio пытается использовать JACK

Я запускаю PyAudio под Python 2.6.6 и хочу, чтобы он использовал ALSA, а не JACK.

In [1]: import pyaudio

In [2]: pa = pyaudio.pa

In [3]: pa.initialize()
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started