title: Enhancement of speech intelligibility in reverberant rooms: role of amplitude envelope and temporal fine structure.
abstract: The temporal envelope and fine structure of speech make distinct contributions to the perception of speech in normal-hearing listeners, and are differentially affected by room reverberation. Previous work has demonstrated enhanced speech intelligibility in reverberant rooms when prior exposure to the room was provided. Here, the relative contributions of envelope and fine structure cues to this intelligibility enhancement were tested using an open-set speech corpus and virtual auditory space techniques to independently manipulate the speech cues within a simulated room. Intelligibility enhancement was observed only when the envelope was reverberant, indicating that the enhancement is envelope-based.
authors.affiliation: Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky 40292 nirmal.srinivasan@va.gov, pavel.zahorik@louisville.edu.
authors.forename: Nirmal Kumar
authors.initials: NK
authors.lastname: Srinivasan
authors.affiliation: Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky 40292 nirmal.srinivasan@va.gov, pavel.zahorik@louisville.edu.
authors.forename: Pavel
authors.initials: P
authors.lastname: Zahorik
mesh_terms: D000161:Acoustic Stimulation; D000162:Acoustics; D001301:Audiometry, Pure-Tone; D001302:Audiometry, Speech; D001309:Auditory Threshold; D005160:Facility Design and Construction; D006801:Humans; D009038:Motion; D010470:Perceptual Masking; D013016:Sound; D013061:Speech Acoustics; D013065:Speech Intelligibility; D013067:Speech Perception; D013997:Time Factors; D014732:Vibration