Design of a System to Measure Spatial Sound Localization Abilities

Hearing ability declines with age. Specifically, it has been shown that sound localization ability becomes increasingly unreliable. This paper describes the design of a system that simulates spatial sound sources to be presented to the user via headphones. Simulation of spatial sound sources are calculated using four increasingly complex methods; (1) Phase adjustment simulation, (2) Amplitude adjustment simulation, (3) Amplitude + Phase adjustment simulation, and (4) Head Related Transfer Function (HRTF) adjustment