CONF Ullmann_PROC.AIA-DAGAINT.CONF.ACOUST._2013/IDIAP Noise Intrusiveness Factors in Speech Telecommunications Ullmann, Raphael Bourlard, Hervé Berger, Jens Llagostera Casanovas, Anna noise intrusiveness noise reduction speech quality subjective evaluation subjective testing EXTERNAL http://publications.idiap.ch/attachments/papers/2013/Ullmann_PROC.AIA-DAGAINT.CONF.ACOUST._2013.pdf PUBLIC Proceedings of the AIA-DAGA 2013 International Conference on Acoustics Merano, Italy 2013 436-439