CONF Schuller_INTERSPEECH_2012/IDIAP The INTERSPEECH 2012 Speaker Trait Challenge Schuller, Björn Steidl, Stefan Batliner, Anton Nöth, Elmar Vinciarelli, Alessandro Burkhardt, Felix Van Son, Rob Weninger, felix Eyben, Florian Bocklet, Tobias Mohammadi, Gelareh Weiss, Benjamin in Proceedings of INTERSPEECH 2012