DEVICE AND METHOD FOR SPATIALLY SELECTIVE SOUND RECEPTION BY ACOUSTIC TRIANGULATION Russian patent published in 2015 - IPC H04R1/40 

FIELD: physics, acoustics.

SUBSTANCE: invention relates to acoustics. A device for capturing audio information from a target location comprises first and second beam formers and a signal generator. The first and second beam formers are configured to record an audio signal. The first beam former and the second beam former are arranged such that a first virtual straight line, which is defined such that it passes through the first beam former and the target location, and a second virtual straight line are not parallel to each other. The signal generator is configured to generate a signal based on the audio signal of the first and second beam formers such that the output audio signal contains relatively more audio information from the target location compared to the audio information from the target location in the audio signal of the first and second beam formers. The signal generator comprises an intersection computing unit for generating an output audio signal in a spectral range based on audio signals of the first and second beam formers, wherein the intersection computing unit is configured to compute an output audio signal in a spectral range by calculating cross-spectral density of the audio signals.

EFFECT: improved capture of audio information.

13 cl, 10 dwg