Digital Directivity Control ( more Borat insanity )

[Borat]

consider a coaxial driver where both inner and outer drivers cover the same frequency range.

outer driver beams more. inner driver beams less.

by gradually switching the signal as follows:

outer driver > both > inner driver

radiation pattern can be widened. but it doesn't stop there ! radiation pattern can be made WIDER STILL than that of the inner driver.

for that we mix in-phase signal from inner driver with attenuated out-of-phase signal from outer driver. this produces significant cancellation on-axis but insignificant cancellation off-axis thereby further widening coverage angle.

this angle can be dialed in separately for every frequency. with both drivers on their own DSP processors a more or less constant directivity behavior can be achieved.

this has been another brilliant idea from Borat. thank you very much.