EP 1062837 A1 20001227 - RADIAL PICKUP MICROPHONE ENCLOSURE
Title (en)
RADIAL PICKUP MICROPHONE ENCLOSURE
Title (de)
RADIALAUFNAHME-MIKROFONGEHÄUSE
Title (fr)
BOITIER DE MICROPHONE A CAPTEUR RADIAL
Publication
Application
Priority
- CA 9900186 W 19990309
- US 7736698 P 19980309
Abstract (en)
[origin: WO9946956A1] A sound pressure waveguide consisting of an input acoustic channel, a compression zone and exit channel with an optional termination baffle. The shape and length of the waveguides are varied to adjust sound pressure gain and to achieve varied sound pickup directivity. The shape and length of the termination baffle, when employed, is also adjustable to achieve varied directivity. The waveguide is shaped from at least two opposing members or sides and at least one sloped member or side. The mounting position of one or more commercially available microphone transducer(s) puts the transducer's diaphragm substantially parallel to the sound path through the waveguide pressure channel. The exit channel is included to let sound pressure pass by the microphone to the pressure channel and through the waveguide to an optional termination baffle, thus preventing significant pressure distortion, sound pressure propagation distortion and undesirable reflections.
IPC 1-7
IPC 8 full level
H04R 1/34 (2006.01)
CPC (source: EP)
H04R 1/342 (2013.01)
Citation (search report)
See references of WO 9946956A1
Designated contracting state (EPC)
AT DE FR GB IT NL SE
DOCDB simple family (publication)
WO 9946956 A1 19990916; AU 2706999 A 19990927; CA 2321670 A1 19990916; CA 2321670 C 20050712; EP 1062837 A1 20001227
DOCDB simple family (application)
CA 9900186 W 19990309; AU 2706999 A 19990309; CA 2321670 A 19990309; EP 99907196 A 19990309