Publications

Active binaural distance estimation for dynamic sources

Authors
Yan-Chen Lu, Martin Cooke, Heidi Christensen.
Conference
Interspeech
Year
2007
Location
Antwerp
Links

A method for estimating sound source distance in dynamicauditory „scenes‟ using binaural data is presented. The techniquerequires little prior knowledge of the acoustic environment.It consists of feature extraction for two dynamic distancecues, motion parallax and acoustic τ, coupled with an inferenceframework for distance estimation. Sequential and nonsequentialmodels are evaluated using simulated anechoic andreverberant spaces. Sequential approaches based on particlefiltering more than half the distance estimation error in all conditionsrelative to the non-sequential models. These resultsconfirm the value of active behaviour and probabilistic reasoningin auditorily-inspired models of distance perception.