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Spatial release from masking in normal-hearing children and children who use hearing aids.
J Acoust Soc Am. 2011 Jan; 129(1):368-75.JA

Abstract

Listening to speech in competing sounds poses a major difficulty for children with impaired hearing. This study aimed to determine the ability of children (3-12 yr of age) to use spatial separation between target speech and competing babble to improve speech intelligibility. Fifty-eight children (31 with normal hearing and 27 with impaired hearing who use bilateral hearing aids) were assessed by word and sentence material. Speech reception thresholds (SRTs) were measured with speech presented from 0° azimuth, and competing babble from either 0° or ±90° azimuth. Spatial release from masking (SRM) was defined as the difference between SRTs measured with co-located speech and babble and SRTs measured with spatially separated speech and babble. On average, hearing-impaired children attained near-normal performance when speech and babble originated from the frontal source, but performed poorer than their normal-hearing peers when babble was spatially separated from target speech. On average, normal-hearing children obtained an SRM of 3 dB whereas children with hearing loss did not demonstrate SRM. Results suggest that hearing-impaired children may need enhancement in signal-to-noise ratio to hear speech in difficult listening conditions as well as normal-hearing children.

Authors+Show Affiliations

National Acoustic Laboratories, Australian Hearing, 126 Greville Street, Chatswood, NSW 2067, Australia. teresa.ching@nal.gov.auNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural

Language

eng

PubMed ID

21303017

Citation

Ching, Teresa Y C., et al. "Spatial Release From Masking in Normal-hearing Children and Children Who Use Hearing Aids." The Journal of the Acoustical Society of America, vol. 129, no. 1, 2011, pp. 368-75.
Ching TY, van Wanrooy E, Dillon H, et al. Spatial release from masking in normal-hearing children and children who use hearing aids. J Acoust Soc Am. 2011;129(1):368-75.
Ching, T. Y., van Wanrooy, E., Dillon, H., & Carter, L. (2011). Spatial release from masking in normal-hearing children and children who use hearing aids. The Journal of the Acoustical Society of America, 129(1), 368-75. https://doi.org/10.1121/1.3523295
Ching TY, et al. Spatial Release From Masking in Normal-hearing Children and Children Who Use Hearing Aids. J Acoust Soc Am. 2011;129(1):368-75. PubMed PMID: 21303017.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Spatial release from masking in normal-hearing children and children who use hearing aids. AU - Ching,Teresa Y C, AU - van Wanrooy,Emma, AU - Dillon,Harvey, AU - Carter,Lyndal, PY - 2011/2/10/entrez PY - 2011/2/10/pubmed PY - 2011/5/28/medline SP - 368 EP - 75 JF - The Journal of the Acoustical Society of America JO - J Acoust Soc Am VL - 129 IS - 1 N2 - Listening to speech in competing sounds poses a major difficulty for children with impaired hearing. This study aimed to determine the ability of children (3-12 yr of age) to use spatial separation between target speech and competing babble to improve speech intelligibility. Fifty-eight children (31 with normal hearing and 27 with impaired hearing who use bilateral hearing aids) were assessed by word and sentence material. Speech reception thresholds (SRTs) were measured with speech presented from 0° azimuth, and competing babble from either 0° or ±90° azimuth. Spatial release from masking (SRM) was defined as the difference between SRTs measured with co-located speech and babble and SRTs measured with spatially separated speech and babble. On average, hearing-impaired children attained near-normal performance when speech and babble originated from the frontal source, but performed poorer than their normal-hearing peers when babble was spatially separated from target speech. On average, normal-hearing children obtained an SRM of 3 dB whereas children with hearing loss did not demonstrate SRM. Results suggest that hearing-impaired children may need enhancement in signal-to-noise ratio to hear speech in difficult listening conditions as well as normal-hearing children. SN - 1520-8524 UR - https://www.unboundmedicine.com/medline/citation/21303017/Spatial_release_from_masking_in_normal_hearing_children_and_children_who_use_hearing_aids_ L2 - https://doi.org/10.1121/1.3523295 DB - PRIME DP - Unbound Medicine ER -