Effect of auditory feedback on speech intelligibility of adults with cochlear implants

Background: The aim of this study was to compare, in users of bimodal cochlear implants, the performance obtained using their own hearing aids (adjusted with the standard NAL-NL1 fitting formula) with the performance using the Phonak Naìda Link Ultra Power hearing aid adjusted with both NAL-NL1 and a new bimodal system (Adaptive Phonak Digital Bimodal (APDB)) developed by Advanced Bionics and Phonak Corporations. Methods: Eleven bimodal users (Naìda CI Q70 + contralateral hearing aid) were enrolled in our study. The users’ own hearing aids were replaced with the Phonak Naìda Link Ultra Power and fitted following the new formula. Speech intelligibility was assessed in quiet and noisy conditions, and comparisons were made with the results obtained with the users’ previous hearing aids and with the Naída Link hearing aids fitted with the NAL-NL1 generic prescription formula. Results: Using Phonak Naìda Link Ultra Power hearing aids with the Adaptive Phonak Digital Bimodal fitting formula, performance was significantly better than that with the users’ own rehabilitation systems, especially in challenging hearing situations for all analyzed subjects. Conclusions: Speech intelligibility tests in quiet settings did not reveal a significant difference in performance between the new fitting formula and NAL-NL1 fittings (using the Naída Link hearing aids), whereas the performance difference between the two fittings was very significant in noisy test conditions.

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Speech intelligibility of Mandarin-speaking deaf children with cochlear implants

International Journal of Pediatric Otorhinolaryngology ◽

10.1016/j.ijporl.2004.10.017 ◽

2005 ◽

Vol 69 (4) ◽

pp. 505-511 ◽

Cited By ~ 10

Author(s):

Chii-Yuan Huang ◽

Hui-Mei Yang ◽

Yung-Ji Sher ◽

Yi-Hui Lin ◽

Jiunn-Liang Wu

Keyword(s):

Cochlear Implants ◽

Speech Intelligibility ◽

Deaf Children

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Temporal fine structure influences voicing confusions for consonant identification in multi-talker babble

10.1101/2021.05.11.443678 ◽

2021 ◽

Author(s):

Vibha Viswanathan ◽

Barbara G. Shinn-Cunningham ◽

Michael G. Heinz

Keyword(s):

Fine Structure ◽

Cochlear Implants ◽

Background Noise ◽

Speech Intelligibility ◽

Temporal Fine Structure ◽

Vast Literature ◽

Listening Environments ◽

Intact Condition ◽

Speech Content

To understand the mechanisms of speech perception in everyday listening environments, it is important to elucidate the relative contributions of different acoustics cues in transmitting phonetic content. Previous studies suggest that the energy envelopes of speech convey most speech content, while the temporal fine structure (TFS) can aid in segregating target speech from background noise. Despite the vast literature on TFS and speech intelligibility, the role of TFS in conveying additional speech content over what envelopes convey in complex acoustic scenes is poorly understood. The present study addresses this question using online psychophysical experiments to measure consonant identification in multi-talker babble for intelligibility-matched intact and 64-channel envelope-vocoded stimuli. Consonant confusion patterns revealed that listeners had a greater tendency in the vocoded (versus intact) condition to be biased towards reporting that they heard an unvoiced consonant, despite envelope and place cues being largely preserved. This result was replicated when babble instances were varied across independent experiments, suggesting that TFS conveys important voicing cues over what envelopes convey in multi-talker babble, a masker that is ubiquitous in everyday environments. This finding has implications for assistive listening devices that do not currently provide TFS cues, such as cochlear implants.

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Duration measurement of vocants in infants with Cochlear Implants

Proceedings of 11th International Conference of Experimental Linguistics ◽

10.36505/exling-2020/11/0014/000429 ◽

2020 ◽

Author(s):

Paris Binos

Keyword(s):

Language Acquisition ◽

Cochlear Implants ◽

Crucial Role ◽

Speech Intelligibility ◽

Recent Literature ◽

Normal Hearing ◽

Hearing Impaired ◽

Prosodic Feature ◽

Verbal Skills ◽

Young Infants

Vocants are precursors to speech and are facially neutral. The presence of these speechlike vocalizations was evident during the precursors to mature phonology called “protophones”. The prosodic feature of duration of the nuclei plays a crucial role in the shift of prelexical to mature speech, since speech intelligibility is closely related to the control of duration. The aim of this work is to determine whether cochlear implants (CIs) positively trigger language acquisition and the development of verbal skills. Recent literature findings are compared and discussed with the performance of two Greek congenitally hearing-impaired infants who were matched with three normal-hearing (NH) infants. This work highlighted an important weakness of the prosodic abilities of young infants with CIs.

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Comparisons of Auditory Performance and Speech Intelligibility in Children With Cochlear Implants Placed Using Different Approaches

Otology & Neurotology ◽

10.1097/mao.0b013e31823c938e ◽

2012 ◽

Vol 33 (1) ◽

pp. 26-29 ◽

Cited By ~ 3

Author(s):

Huiqun Zhou ◽

Zhengnong Chen ◽

Haibo Shi ◽

Yaqin Wu ◽

Shankai Yin

Keyword(s):

Cochlear Implants ◽

Speech Intelligibility ◽

Auditory Performance

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Cochlear Implantation after Bacterial Meningitis in Infants Younger Than 9 Months

International Journal of Otolaryngology ◽

10.1155/2011/845879 ◽

2011 ◽

Vol 2011 ◽

pp. 1-9 ◽

Cited By ~ 2

Author(s):

B. Y. Roukema ◽

M. C. Van Loon ◽

C. Smits ◽

C. F. Smit ◽

S. T. Goverts ◽

...

Keyword(s):

Hearing Loss ◽

Bacterial Meningitis ◽

Cochlear Implants ◽

Cochlear Implantation ◽

Speech Intelligibility ◽

Pneumococcal Meningitis ◽

Profound Hearing Loss ◽

Young Infants ◽

Key Points ◽

Auditory Performance

Objective. To describe the audiological, anesthesiological, and surgical key points of cochlear implantation after bacterial meningitis in very young infants.Material and Methods. Between 2005 and 2010, 4 patients received 7 cochlear implants before the age of 9 months (range 4–8 months) because of profound hearing loss after pneumococcal meningitis.Results. Full electrode insertions were achieved in all operated ears. The audiological and linguistic outcome varied considerably, with categories of auditory performance (CAP) scores between 3 and 6, and speech intelligibility rating (SIR) scores between 0 and 5. The audiological, anesthesiological, and surgical issues that apply in this patient group are discussed.Conclusion. Cochlear implantation in very young postmeningitic infants is challenging due to their young age, sequelae of meningitis, and the risk of cochlear obliteration. A swift diagnostic workup is essential, specific audiological, anesthesiological, and surgical considerations apply, and the outcome is variable even in successful implantations.

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