Localization of audio sources by multiple binaural sensors

Binaural source localization is based on use of two sensors to perform localization of audio sources in a generic environment. Head related transfer functions (HRTF) are employed to model the features of binaural biological systems. A possible approach to binaural localization is based on joint exploitation of the Interaural Level Difference (ILD) and the Interaural Time Difference (ITD) [1]. Unfortunately in real environments the presence of reverberation limits the localization capabilities of this solution. In this paper a possible alternative approach is presented. The proposed solution is based on multiple binaural systems opportunely deployed in the environment and cooperating to the common task of estimating the position of the source. Simulations are described to corroborate the feasibility of the proposed approach.