Comparative study of a bioinspired sound source localization algorithm and a standard beamformer

This work presents a study that compares the angular accuracy of a binaural bioinspired method with classical delay-and-sum beamforming using linear acoustic arrays with an increasing number of sensors. In addition, this study also focuses on the frequency band dependent angular accuracy of the bioinspired method, as previous work has optimized it only for localizing narrowband sound sources. Therefore, a comparison of the localization accuracy for narrowband and broadband excitatory sounds is presented. This enables conclusions about the potential to reduce resources in terms of sensor array spatial requirements and the number of sensors if a bioinspired system is used.