DIRECTIONAL MICROPHONE ARRANGEMENT AND METHOD FOR SIGNAL PROCESSING IN A DIRECTIONAL MICROPHONE ARRANGEMENT

摘要

An arrangement of five figure-of-eight microphones is configured in such a way that receive signals that are at least approximately proportionate to sin( alpha ), cos( alpha ), sin( alpha )*cos( alpha ) or Sin<2>( alpha ) are generated, i.e., first and second order directional microphones can be created. A method for processing signals is also configured in such a way that suitable receive signals are selected and various trigonometric functions that are dependent on the orientation < of the main lobe are generated and combined with the receive signals in such a way as to produce controllable directional microphone arrangements with first and/or second order characteristics.