Real-time feedback control of voice in cochlear implant recipients.
Cochlear implant
hearing loss
vocal control
vocal production
voice
Journal
Laryngoscope investigative otolaryngology
ISSN: 2378-8038
Titre abrégé: Laryngoscope Investig Otolaryngol
Pays: United States
ID NLM: 101684963
Informations de publication
Date de publication:
Dec 2020
Dec 2020
Historique:
received:
09
06
2020
revised:
18
08
2020
accepted:
10
10
2020
entrez:
28
12
2020
pubmed:
29
12
2020
medline:
29
12
2020
Statut:
epublish
Résumé
To evaluate feedback-dependent vocal control in cochlear implant patients using pitch-shifted auditory feedback. Twenty-three CI recipients with at least 6 months of implant experience were enrolled. Vocal recordings were performed while subjects repeated the vowel /e/ and vocal signals were altered in real-time using a digital effects processor to introduce a pitch-shift, presented back to subjects using headphones. Recordings were analyzed to determine pitch changes following the pitch-shifted feedback, and results compared to the magnitude of the shift as well as patient demographics. Consistent with previous results, CI patients' voices had higher pitches with their implant turned off, a change explainable by increases in vocal loudness without the CI. CI patients rapidly compensated for pitch-shifted feedback by changing their vocal pitch, but only for larger shifts. Considerable inter-subject variability was present, and weakly correlated with the duration of implant experience and implant sound thresholds. CI patients, like normal hearing individuals, are capable of real-time feedback-dependent control of their vocal pitch. However, CI patients are less sensitive to small feedback changes, possibly a result of courser CI frequency precision, and may explain poorer than normal vocal control in these patients. Level 3b.
Identifiants
pubmed: 33364407
doi: 10.1002/lio2.481
pii: LIO2481
pmc: PMC7752050
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1156-1162Informations de copyright
© 2020 The Authors. Laryngoscope Investigative Otolaryngology published by Wiley Periodicals LLC on behalf of The Triological Society.
Déclaration de conflit d'intérêts
The authors have no other funding, financial relationships, or conflicts of interest.
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