SOUND CAPTURE SYSTEM,申请号US201314104138-传众专利搜索

SOUND CAPTURE SYSTEM

申请公布号：US2014177867(A1)

申请号：US201314104138

申请日期：2013.12.12

申请公布日期：2014.06.26

申请人：

Harman Becker Automotive Systems GmbH

发明人：CHRISTOPH Markus

分类号：H04R3/00

主分类号：H04R3/00

地址：Karlsbad DE

摘要：A sound capture system is disclosed that includes an open-sphere microphone array where at least four omnidirectional microphones providing at least four output signals are disposed around a point of symmetry and an evaluation circuit that is connected to the at least four microphones disposed around the point of symmetry and that is configured to superimpose the output signal of each of the at least four microphones disposed around the point of symmetry with the output signal of one of the other microphones to form at least four differential microphone constellations providing at least four output signals, each differential microphone constellation having an axis along which it exhibits maximum sensitivity.

主权项：1. A sound capture system comprising: an open-sphere microphone array, where at least four omnidirectional microphones providing at least four output signals are disposed around a point of symmetry; and an evaluation circuit that is connected to the at least four omnidirectional microphones disposed around the point of symmetry and that is configured to superimpose an output signal of each of the at least four omnidirectional microphones disposed around the point of symmetry with an output signal of one of other microphones to form at least four differential microphone constellations providing at least four output signals, each differential microphone constellation having an axis along which it exhibits maximum sensitivity.