Subject: How to discriminate speech from nonspeech ? From: xinhui zhou <zxinhui@xxxxxxxx> Date: Thu, 6 Aug 2009 10:07:26 -0400 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Dear all, I am trying to use independent component analysis (ICA) with data from two microphones to separate two sound sources. One source is speech and the other source is background noise such as bombing sound. However, ICA can not decide which output is speech dominant and which output is noise dominant. Is there any algorithm which can distinguish speech from nonspeech or determine which output from ICA is speech-dominant ? I found some papers such as the one shown as below, but it seems very sophisticated. Discrimination of speech from nonspeech based on multiscale spectro-temporal Modulations Mesgarani, N.; Slaney, M.; Shamma, S.A. Audio, Speech, and Language Processing, IEEE Transactions on Volume 14, Issue 3, May 2006 Page(s): 920 - 930 Thanks, Xinhui,