Relation Between Performance and Confidence Ratings for Sound Localization in Free-Field and Virtual Acoustic Space


  1. Arrabito, G.R.
  2. Mendelson, J.R.
  3. Van Blyderveen, S.L.
  4. Crabtree, R.B.
  5. Boultbee, M.J.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
A relatively new technology, the three-dimensional (3-D) audio display, is being explored for improving aircrew performance. The presentation of virtual auditory cues over headphones to serve as warnings (e.g., weapons, other aircraft) to the aircrew is on application. Accurate localization of the virtual cues necessitates that the aircrew exhibit a high degree of confidence when making localization judgements. In general, individuals are overconfident in their performance on knowledge-based tasks. This overconfidence is exacerbated the more difficult the knowledge-based task becomes. Underconfidence is more common in perceptual-based tasks, particularly when the task is not difficult. If the perceptual task is comparable in difficulty to a knowledge-based task, then overconfidence is exhibited. It could be detrimental if a pilot, who is in error of his/her localization judgements, is nonetheless extremely confident in making that judgement. To the best of our knowledge, there is no reported study on confidence ratings for localization judgements. The use of confidence ratings on localization judgements in free-field and virtual acoustic space was investigated in this study. Subjects made confidence ratings on a seven-element Likert scale after each localization judgement.
Report Number
DCIEM-SL-1999-093 — Reprint
Date of publication
20 Oct 1999
Number of Pages
Reprinted from
Canadian Acoustics/Acoustique Canadienne, Vol 27, 1999, p 92-93
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