SOUND CAPTURE WITH 3-DIMENSIONAL SELECTIVITY

Advances in digital processing and economical transducers open new opp ortunities for high-quality sound capture in reverberant and noisy enc losures. In particular, signal processing for sizable arrays of microp hones can provide spatial selectivity in three-dimensions, and mitigat e the effects of multipath distortion acid interfering sources. As an anniversary tribute to Professor Manfred Schroeder, this report summar izes recent studies on multiple beamforming and matched-filter arrays for applications in teleconferencing and human/machine communication.