Spatial analysis of room impulse responses captured with a 32-capsules microphone array

The signal processing

The idea

Synthesis of 32 directive virtual microphones in the direction of the capsules employing a set of digital filters

M = 32 signals coming from the capsules

V = 32 signals yielding the desired virtual microphones

Bank of MxV FIR filters

Output signal of V mic.

Input signal from the m-capsule

Matrix of filters

The Acoustics of Ancient Theatres Conference


	The idea is to synthetize 32 directive virtual microphones in the direction of the capsules employing a set of digital filters.
	We have 32 signals coming from the capsules and we desire 32 signals yielding the virtual microphones: so we need a bank of MxV FIR filters.
	The convolution of the inputs with the filters gives as output the virtual microphone.