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Patent Searching and Data


Title:
SOUND COLLECTOR
Document Type and Number:
Japanese Patent JP2011223537
Kind Code:
A
Abstract:

To provide a sound collection method that does not spoil presence although a sound radiated from a sound source or speaker is likely to be listened with poor presence and an unclear image.

A sound collector is formed in a cap shape, and mounted, for example, as a microphone cap 3 on a compact capacitor microphone. The sound collector is formed of a cylindrical tube with an opening portion or a tapered resonance tube array 1 that resonates to a frequency component which is a substantially odd multiple or integral multiple. A plurality of resonance tubes which have opening ends and differ in length have other-end portions bundled together, and are mounted in a sealed state closely to a tip-portion diaphragm 4 of a capacitor microphone etc., so as to collect a sound. The resonance tubes have lengths such that the longest length and shortest length are L and L/2 and other lengths are determined by dividing the difference between the longest and shortest lengths by 6 to 12.


Inventors:
MURAKAMI KAZUO
Application Number:
JP2010102668A
Publication Date:
November 04, 2011
Filing Date:
April 09, 2010
Export Citation:
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Assignee:
MURAKAMI KAZUO
International Classes:
H04R1/22
Domestic Patent References:
JPH07307990A1995-11-21
JP2002112381A2002-04-12
JPH01171399A1989-07-06
JP2006254376A2006-09-21
JPH07307990A1995-11-21