Effects of roving level variation on monaural detection with a contralateral cue

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Abstract

Monaural detection with a contralateral cue (MDCC) was measured with and without a 20-dB overall roving level to determine the contribution of loudness to performance on this task. Psychometric functions were obtained for three normal-hearing subjects as a function of the signal-to-noise ratio for pure-tone and 1/3-oct noiseband signals at 500 and 4000 Hz with a wideband noise masker. At 4000 Hz, the roving level degrades performance for the narrow-band noise signal by about 5.3 dB. In addition, the presence of the contralateral cue degrades performance for both the pure-tone and narrow- band noise signals at 4000 Hz by 3 to 6 dB. At 500 Hz, however, performance is not affected by the roving level, and is improved by 3 to 6 dB by the contralateral cue. These results indicate that loudness is being used as a cue only for detection of the 4000-Hz narrow-band noise.

Original languageEnglish
Pages (from-to)2625-2629
Number of pages5
JournalJournal of the Acoustical Society of America
Volume92
Issue number5
DOIs
StatePublished - 26 Nov 1992

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rovings
cues
narrowband
loudness
psychometrics
hearing
signal to noise ratios
broadband

Cite this

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title = "Effects of roving level variation on monaural detection with a contralateral cue",
abstract = "Monaural detection with a contralateral cue (MDCC) was measured with and without a 20-dB overall roving level to determine the contribution of loudness to performance on this task. Psychometric functions were obtained for three normal-hearing subjects as a function of the signal-to-noise ratio for pure-tone and 1/3-oct noiseband signals at 500 and 4000 Hz with a wideband noise masker. At 4000 Hz, the roving level degrades performance for the narrow-band noise signal by about 5.3 dB. In addition, the presence of the contralateral cue degrades performance for both the pure-tone and narrow- band noise signals at 4000 Hz by 3 to 6 dB. At 500 Hz, however, performance is not affected by the roving level, and is improved by 3 to 6 dB by the contralateral cue. These results indicate that loudness is being used as a cue only for detection of the 4000-Hz narrow-band noise.",
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Effects of roving level variation on monaural detection with a contralateral cue. / Koehnke, Janet; Besing, Joan.

In: Journal of the Acoustical Society of America, Vol. 92, No. 5, 26.11.1992, p. 2625-2629.

Research output: Contribution to journalArticleResearchpeer-review

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