A Probabilistic Model for Binaural Sound Localization
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
A Biologically Inspired Spiking Neural Network for Sound Source Lateralization
IEEE Transactions on Neural Networks
Self-organized neural learning of statistical inference from high-dimensional data
IJCAI'13 Proceedings of the Twenty-Third international joint conference on Artificial Intelligence
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This paper presents a spiking neural network (SNN) for binaural sound source localisation (SSL). The cues used for SSL were the interaural time (ITD) and level (ILD) differences. ITDs and ILDs were extracted with models of the medial superior olive (MSO) and the lateral superior olive (LSO). The MSO and LSO outputs were integrated in a model of the inferior colliculus (IC). The connection weights between the MSO and LSO neurons to the IC neurons were estimated using Bayesian inference. This inference process allowed the algorithm to perform robustly on a robot with ~40,dB of ego-noise. The results showed that the algorithm is capable of differentiating sounds with an accuracy of 15°.