Investigation on the "cone of silence"

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.
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