Dominance of head-motion-coupled directional cues over other cues during walking depends upon source spectrum

William Martens, Shuichi Sakamoto, Luis Miranda, Densil Cabrera

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

Listeners who walk past a continuously presented speech sound source emanating from a fixed spatial position will typically experience veridical perception of source location. If, however, walking listeners are fitted with binaural hearing instruments that allow for the signals reaching their ears to be interchanged, left for right and right for left, the sound source is typically reported to be located in a spatial region that is reversed with respect to all three spatial axes: left for right, front for back, and above for below. This result has been taken as evidence for the relative dominance of dynamic interaural directional cues over the spectral directional cues associated with the pinnae of each listener, which should support veridical perception. In order to investigate the relative importance of the spectral energy distribution of the source on the illusory reversals of source location, bursts of broadband noise were presented rather than continuous speech. Under these circumstances, with greater energy in higher frequency bands, the reversals did not readily occur. Therefore, it has been concluded that head-motion-coupled directional cues are likely to dominate spectral cues associated with the filtering effects of the listener's pinnae only for sources containing greater energy at lower frequencies.

Original languageEnglish
Article number050129
JournalProceedings of Meetings on Acoustics
Volume19
DOIs
Publication statusPublished - 2013
Event21st International Congress on Acoustics, ICA 2013 - 165th Meeting of the Acoustical Society of America - Montreal, QC, Canada
Duration: 2013 Jun 22013 Jun 7

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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