Patent ID: 8885855
Filing Date: 2014-11-11
Classification: H04R

Abstract:
1. A high directivity boundary microphone ( 10 ) comprising at least one unidirectional microphone element ( 12 ) and a holder ( 20 ), the holder comprising a holder plate ( 14 ) and a holder foot ( 22 ), the microphone element ( 12 ) being positioned flush into the holder plate ( 14 ), wherein the holder ( 20 ) is placed on a plane ( 18 ), the angle ( 24 ) between the holder plate ( 14 ) and the plane ( 18 ) being between 30° and 40°, and the microphone element ( 12 ) being placed as close as possible to a corner ( 40 ) formed by the holder plate ( 14 ) and the plane ( 18 ), wherein the holder plate ( 14 ) is dimensioned so that sound will be delayed when it travels from front to rear such that the directivity of the at least one microphone element ( 12 ) is increased.