Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Changes in vowel quality in post-lingually deafened cochlear implant users

M C Langereis1, A J Bosman, A F van Olphen

  • 1Department of Otorhinolaryngology, University Hospital, Utrecht, The Netherlands.

Audiology : Official Organ of the International Society of Audiology
|September 26, 1997
PubMed
Summary

Cochlear implantation significantly improved vowel production in post-lingually deafened adults. Twelve months after implantation, formant frequencies shifted towards normal, enhancing vowel contrasts.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Sound localization with bilateral bone conduction devices.

European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·2021
Same author

Discussion of Characteristics of Impaired Hearing and Vibrotactile Stimulation.

Acta oto-laryngologica·2020
Same author

Discussion of Future Hearing Aids.

Acta oto-laryngologica·2020
Same author

Discussion of the Psychophysics of Hearing Aids.

Acta oto-laryngologica·2020
Same author

Evaluation of an abutment-level superpower sound processor for bone-anchored hearing.

Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery·2018
Same author

On the evaluation of a superpower sound processor for bone-anchored hearing.

Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery·2017

Area of Science:

  • Audiology
  • Speech Science
  • Rehabilitation Engineering

Background:

  • Post-lingual deafness significantly impacts speech intelligibility.
  • Vowel production relies on precise control of formant frequencies.
  • Cochlear implants aim to restore auditory perception and improve speech production.

Purpose of the Study:

  • To evaluate the impact of cochlear implantation on vowel production in Dutch adults with post-lingual deafness.
  • To analyze changes in formant frequencies (F1 and F2) and vowel clustering post-implantation.
  • To assess the effectiveness of the Nucleus 22 implant system in improving speech acoustics.

Main Methods:

  • Speech recordings of 20 post-lingually deafened Dutch subjects were collected pre-implantation and at 3 and 12 months post-implantation.

Related Experiment Videos

  • The Nucleus 22 implant (WSP and MSP processors) was used.
  • Acoustic analysis focused on the first (F1) and second (F2) formant frequencies of eleven Dutch monophthongs in an /hV t/ context.
  • Vowel clustering was quantified by comparing between-vowel and within-vowel variance of formant frequencies.

    • Main Results:

    • Twelve months post-implantation, a significant increase in the formant frequency range for vowels was observed with the implant activated.
    • Formant frequencies shifted towards normative values, particularly in subjects with limited pre-implantation range.
    • Significantly increased vowel clustering indicated improved phonological contrast production.

    Conclusions:

    • Cochlear implantation positively affects vowel production acoustics in post-lingually deafened adults.
    • The Nucleus 22 implant facilitates improved differentiation of vowels, moving acoustic parameters closer to typical speech.
    • Enhanced vowel production suggests better speech intelligibility potential following cochlear implantation.