Ideal-observer model of human sound localization of sources with unknown spectrum.

ABSTRACT: Localization of a sound source is in essence the act of decoding the directional information with which the sound was endowed by the head and ears upon measurement by the cochlea. Yet, as the source's directional signature is conflated with the spectral characteristics of the source and the latter is often not known to the listener, this directional signature may be obscured, hampering localization. Current localization models generally avoid this problem by considering sources whose spectrum is known to the listener. In this paper, we investigate how an ideal-observer would deal with this uncertainty of the source: by means of a prior on the source spectrum built from previous experiences. To this end, an ecologically valid prior was constructed from databases of environmental sounds and

SUBMITTER: Reijniers J 

PROVIDER: S-EPMC11873210 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature