The discrimination of voice cues in simulations of bimodal electro-acoustic cochlear-implant hearing

Deniz Başkent, Annika Luckmann, Jessy Ceha, Etienne Gaudrain, Terrin N Tamati

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)
247 Downloads (Pure)

Abstract

In discriminating speakers' voices, normal-hearing individuals effectively use two vocal characteristics, vocal pitch (related to fundamental frequency, F0) and vocal-tract length (VTL, related to speaker size). Typical cochlear-implant users show poor perception of these cues. However, in implant users with low-frequency residual acoustic hearing, this bimodal electro-acoustic stimulation may provide additional voice-related cues, such as low-numbered harmonics and formants, which could improve F0/VTL perception. In acoustic noise-vocoder simulations, where added low-pass filtered speech simulated residual hearing, a strong bimodal benefit was observed for F0 perception. No bimodal benefit was observed for VTL, which seems to mainly rely on vocoder spectral resolution.

Original languageEnglish
Article numberEL292
JournalJournal of the Acoustical Society of America
Volume143
Issue number4
DOIs
Publication statusPublished - Apr-2018

Keywords

  • MULTICENTER
  • OUTCOMES
  • VOCAL-TRACT LENGTH
  • PERCEPTION
  • USERS

Cite this