Comparison of Blackman, linear rise-fall, and linear rise-fall chirp signals in backward masking

Backward masking is finding applications in clinical testing and the diagnosis of auditory processing disorders. Masking of a tonal signal by a band-limited noise in a backward masking paradigm requires significant vigilance and produces fatigue. This study compared the backward masking functions of...

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Bibliographic Details
Published inThe Journal of the Acoustical Society of America Vol. 139; no. 4; p. 2156
Main Authors Sears, Robert, Smith, Silas, Yonovitz, Al
Format Journal Article
LanguageEnglish
Published 01.04.2016
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ISSN0001-4966
1520-8524
DOI10.1121/1.4950382

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Summary:Backward masking is finding applications in clinical testing and the diagnosis of auditory processing disorders. Masking of a tonal signal by a band-limited noise in a backward masking paradigm requires significant vigilance and produces fatigue. This study compared the backward masking functions of ten normal hearing young (18–30 years) subjects using tonal stimuli with different signatures in order to provide a better contrast to the noise masker. Subjects adaptively tracked the tonal threshold using 2 dB changes. The noise stimulus was 70 dB HL, and the inter-stimulus interval (ISI) varied from 2 ms to 64 ms. The results will be described in terms of fatigue, tracking efficiency, and latency.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4950382