Spectral contrast enhancement improves speech intelligibility in noise for cochlear implants

2016 ◽  
Vol 139 (2) ◽  
pp. 728-739 ◽  
Author(s):  
Waldo Nogueira ◽  
Thilo Rode ◽  
Andreas Büchner
Keyword(s):  
Contrast Enhancement ◽  
Cochlear Implants ◽  
Speech Intelligibility ◽  
Spectral Contrast

scholarly journals Effect of Spectral Contrast Enhancement on Speech-on-Speech Intelligibility and Voice Cue Sensitivity in Cochlear Implant Users

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Nawal El Boghdady ◽  
Florian Langner ◽  
Etienne Gaudrain ◽  
Deniz Başkent ◽  
Waldo Nogueira
Keyword(s):  
Cochlear Implant ◽  
Contrast Enhancement ◽  
Speech Intelligibility ◽  
Spectral Contrast

scholarly journals Integrated Bimodal Fitting for Unilateral CI Users with Residual Contralateral Hearing

2021 ◽  
Vol 11 (2) ◽  
pp. 200-206
Author(s):  
Gennaro Auletta ◽  
Annamaria Franzè ◽  
Carla Laria ◽  
Carmine Piccolo ◽  
Carmine Papa ◽  
...  
Keyword(s):  
Cochlear Implants ◽  
Hearing Aids ◽  
Speech Intelligibility ◽  
Hearing Aid ◽  
Performance Difference ◽  
Test Conditions ◽  
Significant Difference ◽  
Noisy Conditions ◽  
New Formula ◽  
Better Than

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.

Speech intelligibility of Mandarin-speaking deaf children with cochlear implants

2005 ◽  
Vol 69 (4) ◽  
pp. 505-511 ◽  
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

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

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.

Spectral contrast enhancement techniques for extrasolar planet imaging

2003 ◽  
Author(s):  
Tilak Hewagama ◽  
Richard B. Barclay ◽  
Tina C. Chen ◽  
Drake Deming ◽  
Cedric Goukenleuque ◽  
...  
Keyword(s):  
Contrast Enhancement ◽  
Extrasolar Planet ◽  
Spectral Contrast

scholarly journals Duration measurement of vocants in infants with Cochlear Implants

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.

Growth of spectral contrast enhancement in Schroeder‐phase harmonic complexes

2000 ◽  
Vol 107 (5) ◽  
pp. 2881-2881
Author(s):  
Laura E. Dreisbach ◽  
Marjorie R. Leek ◽  
Jennifer J. Lentz
Keyword(s):  
Contrast Enhancement ◽  
Spectral Contrast

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

2012 ◽  
Vol 33 (1) ◽  
pp. 26-29 ◽  
Author(s):  
Huiqun Zhou ◽  
Zhengnong Chen ◽  
Haibo Shi ◽  
Yaqin Wu ◽  
Shankai Yin
Keyword(s):  
Cochlear Implants ◽  
Speech Intelligibility ◽  
Auditory Performance
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