The quality of binaural reproduction of virtual sound sources is often investigated using auditory localization experiments. An alternative method of collecting listener localization responses to spatial audio stimuli using an eye tracking system built into an AR headset is presented. To validate the method, an experimental procedure is proposed, which includes collection of gaze pattern data in response to binaural signals varying in interaural time and level differences. Additionally, the collected data is compared against data obtained using a visual pointer adjustment as well as data obtained from individual and generic HRTF sets. The preliminary results suggest that the use of eye tracking for auditory localization experiments might be a time efficient and precise testing method for binaural audio.
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