Predicting wideband real-ear-to-coupler differences in children using wideband acoustic immittance.
Journal
The Journal of the Acoustical Society of America
ISSN: 1520-8524
Titre abrégé: J Acoust Soc Am
Pays: United States
ID NLM: 7503051
Informations de publication
Date de publication:
01 08 2023
01 08 2023
Historique:
received:
17
02
2023
accepted:
30
07
2023
pmc-release:
01
08
2024
medline:
16
8
2023
pubmed:
15
8
2023
entrez:
15
8
2023
Statut:
ppublish
Résumé
Individual differences in ear-canal acoustics introduce variability into hearing aid output that can affect speech audibility. Measuring ear-canal acoustics in young children can be challenging, and relying on normative real-ear-to-coupler difference (RECD) transforms can lead to large fitting errors. Acoustic immittance measures characterize the impedance of the ear and are more easily measured than RECD. Using 226 Hz tympanometry to predict the RECD is more accurate than using age-based average RECD values. The current study sought to determine whether wideband acoustic immittance measurements could improve predictions of wideband real-ear-to-coupler difference (wRECD). 150 children ages 2-10 years with intact tympanic membranes underwent wRECD and wideband acoustic immittance measures in each ear. Three models were constructed to predict each child's measured wRECD: the age-based average wRECD, 226 Hz admittance wRECD, and wideband absorbance wRECD. The average age-based wRECD model predicted the child's measured wRECD within 3 dB in 62% of cases, but both the 226 Hz admittance and wideband absorbance wRECD were within 3 dB in 90% of cases. Using individual 226 Hz or wideband absorbance to predict wRECD improved the accuracy and precision of transforms used for pediatric hearing aid fitting.
Identifiants
pubmed: 37581511
pii: 2906685
doi: 10.1121/10.0020660
pmc: PMC10431946
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
991-1002Subventions
Organisme : NIGMS NIH HHS
ID : P20 GM109023
Pays : United States
Organisme : NIDCD NIH HHS
ID : R01 DC013591
Pays : United States
Organisme : NIDCD NIH HHS
ID : R01 DC018330
Pays : United States
Organisme : NIDCD NIH HHS
ID : T35 DC008757
Pays : United States
Informations de copyright
© 2023 Acoustical Society of America.
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