On the usefulness of STFT phase spectrum in human listening tests

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Title On the usefulness of STFT phase spectrum in human listening tests
Author Paliwal, Kuldip Kumar; Alsteris, Leigh
Journal Name Speech Communication
Year Published 2005
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Abstract The short-time Fourier transform (STFT) of a speech signal has two components: the magnitude spectrum and the phase spectrum. In this paper, the relative importance of short-time magnitude and phase spectra for speech perception is investigated. Human perception experiments are conducted to measure intelligibility of speech stimuli synthesized either from magnitude spectra or phase spectra. It is traditionally believed that the magnitude spectrum plays a dominant role for small window durations (20-40~ms); while the phase spectrum is more important for large window durations (> 1 s). It is shown in this paper that even for small window durations, the phase spectrum can contribute to speech intelligibility as much as the magnitude spectrum if the analysis-modification-synthesis parameters are properly selected.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.elsevier.com/wps/find/journaldescription.cws_home/505597/description#description
Alternative URI http://dx.doi.org/10.1016/j.specom.2004.08.001
Copyright Statement Copyright 2005 Elsevier : Reproduced in accordance with the copyright policy of the publisher : This journal is available online - use hypertext links
Volume 45
Page from 153
Page to 170
ISSN 0167-6393
Date Accessioned 2006-02-22
Language en_AU
Research Centre Institute for Integrated and Intelligent Systems
Faculty Faculty of Engineering and Information Technology
Subject PRE2009-Speech Recognition
URI http://hdl.handle.net/10072/4269
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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