title: The role of recovered envelope cues in the identification of temporal-fine-structure speech for hearing-impaired listeners.
abstract: Narrowband speech can be separated into fast temporal cues [temporal fine structure (TFS)], and slow amplitude modulations (envelope). Speech processed to contain only TFS leads to envelope recovery through cochlear filtering, which has been suggested to account for TFS-speech intelligibility for normal-hearing listeners. Hearing-impaired listeners have deficits with TFS-speech identification, but the contribution of recovered-envelope cues to these deficits is unknown. This was assessed for hearing-impaired listeners by measuring identification of disyllables processed to contain TFS or recovered-envelope cues. Hearing-impaired listeners performed worse than normal-hearing listeners, but TFS-speech intelligibility was accounted for by recovered-envelope cues for both groups.
authors.affiliation: Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 36-757, Cambridge, Massachusetts 02139.
authors.forename: Agnès C
authors.initials: AC
authors.lastname: Léger
authors.affiliation: Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 36-757, Cambridge, Massachusetts 02139.
authors.forename: Joseph G
authors.initials: JG
authors.lastname: Desloge
authors.affiliation: Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 36-757, Cambridge, Massachusetts 02139.
authors.forename: Louis D
authors.initials: LD
authors.lastname: Braida
authors.affiliation: Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 36-757, Cambridge, Massachusetts 02139.
authors.forename: Jayaganesh
authors.initials: J
authors.lastname: Swaminathan
mesh_terms: D003463:Cues; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology / Q000523:psychology*; D006801:Humans; D010700:Phonetics; D012815:Signal Processing, Computer-Assisted; D013061:Speech Acoustics; D013065:Speech Intelligibility / Q000502:physiology; D013067:Speech Perception / Q000502:physiology*; D013995:Time