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Re: Directional microphone
> Is it possible to simulate the effect of a highly directional
>microphone using an array of two or more omni-directional microphones ? I
>suspect that this could be done by using a simple time-delay filter,but I
>am not sure how...
> Any ideas or pointers ?
Yes, it is.
See, for example,
P.L. Chu, "Desktop Mic Array for Teleconferencing," Proc.
ICASSP-95, Vol. 5, pp. 2999-3002, 1995,
M.S. Brandstein, J.E. Adcock, and H.F. Silverman, "A Closed-Form
Method for Finding Source Locations from Microphone-Array
Time-Delay Estimates," Proc. ICASSP-95, Vol. 5, pp. 3019-3022, 1995,
and references cited therein.