Binaural signal detection with phase-shifted and time-delayed noise maskers

D.J. Breebaart, S.L.J.D.E. Par, van de, A.G. Kohlrausch

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

Detection thresholds were measured for interaurally in-phase sinusoids added to a narrow-band dichotic noise masker which was either interaurally phase shifted (NSo condition) or time delayed (NSo condition). The signals were spectrally centered in the noise bands and the delay equaled half the signal period. Both conditions were tested at 125 and 500 Hz for noise bandwidths of 10, 25, 50, and 100 Hz. In addition, NoS and NoSo thresholds were obtained. In contrast to expectations based on the EC theory, no differences in detection thresholds were observed between thresholds in phase-shifted and time-shifted maskers. The results also cannot be explained on the basis of more recent binaural models. The stimuli presented here might therefore serve as a useful validation tool in the development of new binaural theories and models.
Original languageEnglish
Pages (from-to)2079-2083
Number of pages5
JournalJournal of the Acoustical Society of America
Volume103
Issue number4
DOIs
Publication statusPublished - 1998

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