Auditory localization using direction-dependent spectral information

This work presents a biologically motivated neuronal model for detecting th e elevation of unfamiliar natural sound sources using monoaural cues, based on head-related-transfer functions. This model can determine the elevation of an unfamiliar sound source to within less than 4 degrees with no error using very small number of training samples. In addition, we suggest that t he approximate logarithmic response of the cells in the cochlea is benefici al for localizing unfamiliar sound sources. (C) 2000 Elsevier Science B.V. All rights reserved.