Intelligibility of Reverberant Speech with Amplification: Limitation of Speech Intelligibility Metrics, and a Preliminary Examination of an Alternative Approach
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53671#.VM8r9izQrzE Author(s) Doheon Lee * , Eunju Gong , Densil Cabrera , Manuj Yadav , William L. Martens Affiliation(s) The Faculty of Architecture, Design and Planning, The University of Sydney, Sydney, Australia . ABSTRACT This study examines the effect of speech level on intelligibility in different reverberation conditions, and explores the potential of loudness-based reverberation parameters proposed by Lee et al. [J. Acoust. Soc. Am., 131(2), 1194-1205 (2012)] to explain the effect of speech level on intelligibility in various reverberation conditions. Listening experiments were performed with three speech levels (LAeq of 55 dB, 65 dB and 75 dB) and three reverberation conditions (T 20 of 1.0 s, 1.9 s and 4.0 s), and subjects listened to speech stimuli through headphones. Collected subjective data were compared with two conventional speech intelligibility ...