  In this paper, we primarily explore the improvement of single stream audio
systems using Angle of Arrival calculations in both simulation and real life
gathered data. We wanted to learn how to discern the direction of an audio
source from gathered signal data to ultimately incorporate into a multi modal
security system. We focused on the MUSIC algorithm for the estimation of the
angle of arrival but briefly experimented with other techniques such as
Bartlett and Capo. We were able to implement our own MUSIC algorithm on
stimulated data from Cornell. In addition, we demonstrated how we are able to
calculate the angle of arrival over time in a real life scene. Finally, we are
able to detect the direction of arrival for two separate and simultaneous audio
sources in a real life scene. Eventually, we could incorporate this tracking
into a multi modal system combined with video. Overall, we are able to produce
compelling results for angle of arrival calculations that could be the stepping
stones for a better system to detect events in a scene.
