@article{15b1b1689ead45dab7b4980ecd7ad739,
title = "A spectro-temporal modulation index (STMI) for assessment of speech intelligibility",
abstract = "We present a biologically motivated method for assessing the intelligibility of speech recorded or transmitted under various types of distortions. The method employs an auditory model to analyze the effects of noise, reverberations, and other distortions on the joint spectro-temporal modulations present in speech, and on the ability of a channel to transmit these modulations. The effects are summarized by a spectro-temporal modulation index (STMI). The index is validated by comparing its predictions to those of the classical STI and to error rates reported by human subjects listening to speech contaminated with combined noise and reverberation. We further demonstrate that the STMI can handle difficult and nonlinear distortions such as phase-jitter and shifts, to which the STI is not sensitive.",
keywords = "Modulation transfer function, STMI, Spectro-temporal modulations, Speech intelligibility",
author = "Mounya Elhilali and Tai-Shih Chi and Shamma, {Shihab A.}",
note = "Funding Information: This work is supported in contract with the Southwest Research Institute, and partially by the Office of Naval Research through an MURI grant (Center for Auditory and Acoustic Research). We are grateful to Dr. Brian Zook (at Southwest Research Institute) for extensive discussions, and supplying the speech intelligibility data. We are also grateful to two extremely insightful and helpful reviews of this manuscript by Dr. Brian J.C. Moore and an anonymous reviewer.",
year = "2003",
month = oct,
doi = "10.1016/S0167-6393(02)00134-6",
language = "English",
volume = "41",
pages = "331--348",
journal = "Speech Communication",
issn = "0167-6393",
publisher = "Elsevier B.V.",
number = "2-3",
}