Conference paper Open Access

An Enhanced Binaural 3D Sound Localization Algorithm

Keyrouz, Fakheredine; Diepold, Klaus

For sound localization methods to be useful in real-time scenarios, the processing power requirements must be low enough to allow real time processing of audio inputs. we propose a new binaural sound source localization technique based on using only two microphones placed inside the ear canal of a robot dummy head. The head is equipped with artificial ears and is mounted on a torso. In contrast to existing 3D sound source localization methods using microphone arrays, the novel method presented employs only two microphone and is based on a simple correlation approach using a generic set of HRTFs. The proposed method is demonstrated through simulation and is further tested in a household environment. This set up proves to be very noise-tolerant and is able to localize sound sources in free space with high precision.

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