This live demonstration presents a sound source
localization and tracking system implemented with Spike Signal
Processing (SSP) building blocks on FPGA devices. The system
architecture is based on the ability of the mammalian auditory
system to locate the direction of a sound in the horizontal plane
using the interaural intensity difference. We used a binaural
Neuromorphic Auditory Sensor to obtain spike rates similar to
those generated by the inner hair cells of the human auditory
system and the component that obtains the interaural intensity
difference is inspired by the lateral superior olive. The spike
stream that represents the interaural intensity difference is used
to turn a robotic platform towards the sound source direction.
The system was tested with pure tones (1-kHz, 2.5-kHz and 5-
kHz sounds) with an average error of 2.32 degrees.Ministerio de Economía y Competitividad TEC2016-77785-
