REPORT Parthasarathi_Idiap-RR-36-2011/IDIAP Robustness of Group Delay Representations for Noisy Speech Signals Parthasarathi, Sree Hari Krishnan Rajan, Padmanabhan Murthy, Hema A EXTERNAL http://publications.idiap.ch/attachments/reports/2011/Parthasarathi_Idiap-RR-36-2011.pdf PUBLIC Idiap-RR-36-2011 2011 Idiap December 2011