Interaural spectral asymmetry and sensitivity to interaural time differences

Christopher A. Brown, William Yost

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Listeners' ability to discriminate interaural time difference (ITD) changes in low-frequency noise was determined as a function of differences in the noise spectra delivered to each ear. An ITD was applied to Gaussian noise, which was bandpass filtered using identical high-pass, but different low-pass cutoff frequencies across ears. Thus, one frequency region was dichotic, and a higher-frequency region monotic. ITD thresholds increased as bandwidth to one ear (i.e., monotic bandwidth) increased, despite the fact that the region of interaural spectral overlap remained constant. Results suggest that listeners can process ITD differences when the spectra at two ears are moderately different.

Original languageEnglish (US)
JournalJournal of the Acoustical Society of America
Volume130
Issue number5
DOIs
StatePublished - Nov 1 2011

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ear
asymmetry
sensitivity
bandwidth
noise spectra
random noise
cut-off
low frequencies
thresholds
Spectrality
Ear
Asymmetry
Listeners

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

Interaural spectral asymmetry and sensitivity to interaural time differences. / Brown, Christopher A.; Yost, William.

In: Journal of the Acoustical Society of America, Vol. 130, No. 5, 01.11.2011.

Research output: Contribution to journalArticle

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