Spatial release from masking in normal-hearing children and children who use hearing aids
| Autor: | Lyndal Carter, Emma van Wanrooy, Teresa Y. C. Ching, Harvey Dillon |
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| Rok vydání: | 2011 |
| Předmět: |
Male
medicine.medical_specialty Speech perception Acoustics and Ultrasonics Hearing loss Hearing Loss Sensorineural Acoustics Perceptual Masking Speech Perception [71] Audiology Persons With Hearing Impairments Vocabulary Speech Reception Threshold Test Hearing Aids Arts and Humanities (miscellaneous) otorhinolaryngologic diseases medicine Humans Correction of Hearing Impairment Active listening Child medicine.diagnostic_test Speech Intelligibility Auditory Threshold Recognition Psychology Acoustic Stimulation Case-Control Studies Child Preschool Speech Perception Audiometry Pure-Tone Female Pure tone audiometry medicine.symptom Audiometry Noise Psychology |
| Zdroj: | The Journal of the Acoustical Society of America. 129:368-375 |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.3523295 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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