SOUNDPROOF STRUCTURE AND OPENING STRUCTURE

There are provided a soundproof structure and an opening structure capable of suppressing degradation of sound absorbing characteristics due to resonance vibration. A micro perforated plate having a plurality of through-holes passing therethrough in the thickness direction and a first frame body, wh...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	OHTSU, Akihiko, HAKUTA, Shinya, YAMAZOE, Shogo
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SOUND-PRODUCING DEVICES
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