公开(公告)号：EP3078207B1

公开(公告)日：2018-04-04

申请号：EP14805918.1

申请日：2014-12-02

Applicant: DPA Microphones A/S

Inventor： POULSEN, Christian ,  POULSEN, Anders

IPC: H04R1/08 ,  F16M11/06

CPC classification number: H04R1/04 ,  F16M11/06 ,  F16M13/022 ,  F16M13/04 ,  H04R1/08 ,  H04R2201/025

Abstract: A microphone assembly comprising: a microphone for converting an acoustic signal to an electrical microphone signal; a tube enclosing at least a part of a first conductor for conducting the microphone signal, the tube comprising a rigid first tube part and a rigid second tube part. The first tube part has a first primary tube end and a first secondary tube end, wherein the microphone is attached at the first primary tube end. The second tube part has a second primary tube end and a second secondary tube end. A first rotating connector between the first tube part and the second tube part allows rotating the first tube part in relation to the second tube part about a first rotation axis.

公开(公告)号：EP1714524B1

公开(公告)日：2012-11-28

申请号：EP05700606.6

申请日：2005-01-27

Applicant: DPA microphones A/S

Inventor： SØRENSEN, Ole, Møller

IPC: H04R3/00 ,  H04R1/40 ,  H04R1/26

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/23

公开(公告)号：EP1714524A1

公开(公告)日：2006-10-25

申请号：EP05700606.6

申请日：2005-01-27

Applicant: DPA microphones A/S

Inventor： SØRENSEN, Ole, Møller

IPC: H04R3/00 ,  H04R1/40 ,  H04R1/26

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/23

Abstract: Microphone array for achieving a substantially frequency-independent directivity using a plurality of microphones disposed along a rectilinear array. The rectilinear array is at least as long as the wavelength of the lowest frequency, where a useful directivity is desired. The rectilinear array has a first end and a second end. The microphones close to the first end are intended for the highest frequencies and the microphones close to the second end are intended for the lowest frequencies. The mutual spacing of the microphones is frequency-dependent. The signals from the individual microphones are band-pass filters being adapted to the frequency band the individual microphones are intended for. The individual band-pass filters are adapted such that the amplitude of the summated signal after band-pass filtering is substantially the same when a sinus-shaped test signal is used, the amplitude of said test signal being constant and the frequency of said test signal varying within the frequency range where the microphone array is to have a substantially frequency-independent directivity.