Subject: Re: An ASA cue for phase information From: Steve Beet <steve.beet@xxxxxxxx> Date: Thu, 25 Nov 2010 21:00:52 -0000 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Sorry to be slow in responding to this, but I think the most straightforward (i.e. easiest to calculate and easiest to use) analysis of phase information is the modified group delay function developed by Yegnanarayana. As I've mentioned before on this list, my own "inverse phase velocity" auditory parameter did this as well, and is probably more closely related to auditory perception, being based on an early version of Dick Lyon's auditory model. However, my parameter is relatively difficult to compute, and gives such high "resolution" that it's also difficult to use in any standard ASR/DSP framework. So basically I'd suggest using some form of group delay parameter. Good luck! Steve Beet -----Original Message----- From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx On Behalf Of azam rabiei Sent: Tuesday, November 16, 2010 11:42 AM To: AUDITORY@xxxxxxxx Subject: An ASA cue for phase information Dear List, I am working on CASA (Computational Auditory Scene Analysis). For feature extraction, I used an onset/offset analysis and a harmonic analysis to keep the track of temporal and spectral information, respectively. I need to have phase information, as well. But, spectrogram has no information of phase. I'm looking for a cue for phase information. I will appreciate anyone who could give me any point. Regards Azam