Acoustic characteristics of infant-directed speech to normal-hearing and hearing-impaired twins with hearing aids and cochlear implants: A case study

2014 ◽  
Vol 136 (4) ◽  
pp. 2262-2262 ◽  
Author(s):  
Maria V. Kondaurova ◽  
Tonya R. Bergeson-Dana ◽  
Neil A. Wright
Keyword(s):  
Cochlear Implants ◽  
Hearing Aids ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Acoustic Characteristics

scholarly journals Production of Greek vowels by hearing-impaired children

2020 ◽  
Author(s):  
Elina Nirgianaki ◽  
Maria Bitzanaki
Keyword(s):  
Hearing Loss ◽  
Cochlear Implants ◽  
High Dimension ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Acoustic Characteristics ◽  
Significant Difference ◽  
Impaired Group ◽  
Impaired Children ◽  
Hearing Impaired Children

The present study investigates the acoustic characteristics of Greek vowels produced by hearing-impaired children with profound prelingual hearing loss and cochlear implants. The results revealed a significant difference between vowels produced by hearingimpaired children and those produced by normal-hearing ones in terms of duration. Stressed vowels were significantly longer than non-stressed for both groups, while F0, F1 and F2 did not differ significantly between the two groups for any vowel, with the exception of /a/, which had significantly higher F1 when produced by hearingimpaired children. Acoustic vowel spaces were similar for the two groups but shifted towards higher frequencies in the low-high dimension and somehow reduced in the front-back dimension for the hearing-impaired group.

scholarly journals Perception of Auditory Distance in Normal-Hearing and Moderate-to-Profound Hearing-Impaired Listeners

2019 ◽  
Vol 23 ◽  
pp. 233121651988761 ◽  
Author(s):  
Gilles Courtois ◽  
Vincent Grimaldi ◽  
Hervé Lissek ◽  
Philippe Estoppey ◽  
Eleftheria Georganti
Keyword(s):  
Hearing Loss ◽  
Hearing Aids ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Spatial Cues ◽  
Linear Amplification ◽  
Profound Hearing Loss ◽  
Wireless Microphone ◽  
Auditory Distance ◽  
Non Linear

The auditory system allows the estimation of the distance to sound-emitting objects using multiple spatial cues. In virtual acoustics over headphones, a prerequisite to render auditory distance impression is sound externalization, which denotes the perception of synthesized stimuli outside of the head. Prior studies have found that listeners with mild-to-moderate hearing loss are able to perceive auditory distance and are sensitive to externalization. However, this ability may be degraded by certain factors, such as non-linear amplification in hearing aids or the use of a remote wireless microphone. In this study, 10 normal-hearing and 20 moderate-to-profound hearing-impaired listeners were instructed to estimate the distance of stimuli processed with different methods yielding various perceived auditory distances in the vicinity of the listeners. Two different configurations of non-linear amplification were implemented, and a novel feature aiming to restore a sense of distance in wireless microphone systems was tested. The results showed that the hearing-impaired listeners, even those with a profound hearing loss, were able to discriminate nearby and far sounds that were equalized in level. Their perception of auditory distance was however more contracted than in normal-hearing listeners. Non-linear amplification was found to distort the original spatial cues, but no adverse effect on the ratings of auditory distance was evident. Finally, it was shown that the novel feature was successful in allowing the hearing-impaired participants to perceive externalized sounds with wireless microphone systems.

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.

scholarly journals Training of Speech Perception in Noise in Pre-Lingual Hearing Impaired Adults With Cochlear Implants Compared With Normal Hearing Adults

2019 ◽  
Vol 40 (3) ◽  
pp. e316-e325 ◽  
Author(s):  
Yossi Bugannim ◽  
Daphne Ari-Even Roth ◽  
Doreen Zechoval ◽  
Liat Kishon-Rabin
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Speech Perception In Noise

scholarly journals Effects of Binaural Spatialization in Wireless Microphone Systems for Hearing Aids on Normal-Hearing and Hearing-Impaired Listeners

2018 ◽  
Vol 22 ◽  
pp. 233121651775354 ◽  
Author(s):  
Gilles Courtois ◽  
Hervé Lissek ◽  
Philippe Estoppey ◽  
Yves Oesch ◽  
Xavier Gigandet
Keyword(s):  
Hearing Aids ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Wireless Microphone
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