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The effect of masking by noise on word discrimination scores in listeners with normal hearing and with noise-induced hearing loss



The effect of masking by noise on word discrimination scores in listeners with normal hearing and with noise-induced hearing loss



Scandinavian Audiology 8(3): 139-143



Patients with high-frequency hearing loss often complain at the Workers' Compensation Board that they find it difficult to hear speech in a noisy environment. This study was undertaken to test the validity of their complaints. The experiment had a 2x3x3 factorial design. The factors were subject group (normal hearing versus sensorineural hearing loss), stimulus level (65, 75, and 85 dB SPL), and speech-to-noise ratio (5, 12, and 19 dB). There were 6 subjects in each condition. Each subject was tested for his speech discrimination with three CID W-22 50-word lists, one in each of the three different speech-to-noise ratios. Both speech and pink noise were presented through loudspeakers in a sound field. The results support the patients' complaints. Possible explanations for the results are discussed.

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Accession: 041627029

Download citation: RISBibTeXText

PMID: 515696

DOI: 10.3109/01050397909076314


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