Spatial Hearing with Incongruent Visual or Auditory Room Cues.

Abstract:

:In day-to-day life, humans usually perceive the location of sound sources as outside their heads. This externalized auditory spatial perception can be reproduced through headphones by recreating the sound pressure generated by the source at the listener's eardrums. This requires the acoustical features of the recording environment and listener's anatomy to be recorded at the listener's ear canals. Although the resulting auditory images can be indistinguishable from real-world sources, their externalization may be less robust when the playback and recording environments differ. Here we tested whether a mismatch between playback and recording room reduces perceived distance, azimuthal direction, and compactness of the auditory image, and whether this is mostly due to incongruent auditory cues or to expectations generated from the visual impression of the room. Perceived distance ratings decreased significantly when collected in a more reverberant environment than the recording room, whereas azimuthal direction and compactness remained room independent. Moreover, modifying visual room-related cues had no effect on these three attributes, while incongruent auditory room-related cues between the recording and playback room did affect distance perception. Consequently, the external perception of virtual sounds depends on the degree of congruency between the acoustical features of the environment and the stimuli.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Gil-Carvajal JC,Cubick J,Santurette S,Dau T

doi

10.1038/srep37342

subject

Has Abstract

pub_date

2016-11-17 00:00:00

pages

37342

issn

2045-2322

pii

srep37342

journal_volume

6

pub_type

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