Article
In-depth analysis of errors in static and active sound localisation (en)
* Presenting author
Abstract:
Studies on active sound localisation in humans are scarce and less extensive than work on static sound localisation. While for static listening, full direction-dependent analyses of 3D sound localisation have been conducted in the past, a similar in-depth spatial analysis is not yet available for active sound localisation, i.e., involving head movements. In this work, we present a full spatial analysis of both passive and active sound localisation performed over many directions on a sphere. Our results verify that subjects underestimate a source’s elevation and overestimate its lateral angle. Furthermore, responses to behind the listener showed a higher variance than those to the front. Similarly, back-to-front confusions were more common that front-to-back confusions. For localisation involving head movements, response biases and variances were similar to the static condition, but the front-back confusions were completely resolved. Our outcome provides valuable insights into the directional active human sound localisation required for the auditory modelling and binaural sound reproduction.