Thanks for help before. Now i have the following. cleanup floats: 37 unfreed floats in 2 out of 2 blocks user@Nokia-N900-02-8:~$ python saera.py saera.py:186: SyntaxWarning: name 'able_to_listen' is used prior to global declaration global able_to_listen Traceback (most recent call last): File "saera.py", line 298, in <module> app = Saera() File "saera.py", line 80, in __init__ self.init_gst() File "saera.py", line 246, in init_gst + '! pocketsphinx name=asr ! fakesink') glib.GError: no element "vader" user@Nokia-N900-02-8:~$