Objective Measurement of Sound Event Localization in Horizontal and Median Planes

A software tool, Localization of Sound Events (LSE), is presented which mimics the behavior of the auditory system for sound localization. This objective localization is accomplished by measuring a binaural signal in the horizontal plane and a monaural signal in the median plane. The LSE tool can simulate acoustic configurations such as a virtual acoustic opening in which a multichannel audio system attempts to synthesize the wave field propagated from a source room to a receiving room as if there were a real window. This study presents the results of the application of LSE to real and simulated signals. LSE is shown to simulate accurately an auditory localization system for virtual acoustic openings.