“…Secondly, there has been a long standing belief among speech researchers that for small window durations (20-40 ms), 4 typically employed in speech processing, the short-time phase spectrum contains little useful information Oppenheim and Lim, 1981;Vary, 1985;Liu et al, 1997) and is unimportant for speech enhancement Wang and Lim, 1982). Recent subjective studies (Paliwal, 2003;Paliwal and Alsteris, 2003;Alsteris and Paliwal, 2004;Paliwal and Alsteris, 2005;Alsteris and Paliwal, 2006;Shi et al, 2006;Wó jcicki and Paliwal, 2007) suggest, however, that the phase spectrum does contain significant amount of useful information for speech intelligibility.…”