Investigation on the “cone of silence”

Purpose of the project, outline of the project, formula for working out the equation of finding the reference point from 2 speakers, 3 speakers upto 6 speakers in total.
Also a complete and understandable write up of theory of a Finite Impulse Response (FIR) filter that performs a phase shift of 120 degrees for 3 speakers and so on, right upto 6 speakers, with their respective phase shift. A complete equation for the FIR is also required.