SOUND REFLECTION STRUCTURE

To provide a means capable of further improving the sound-reflecting performance in a frequency range of 1500 to 2500 Hz.A sound-reflecting material including a sheet having elasticity, and a support portion partitioning the sheet into a partition portion while supporting the sheet is configured so...

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Bibliographische Detailangaben
Hauptverfasser:	HORIBE, Norifumi, MIURA, Susumu
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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Beschreibung
Zusammenfassung:	To provide a means capable of further improving the sound-reflecting performance in a frequency range of 1500 to 2500 Hz.A sound-reflecting material including a sheet having elasticity, and a support portion partitioning the sheet into a partition portion while supporting the sheet is configured so that a surface rigidity (k) of the sheet and a surface density (m) of the sheet in the partition portion satisfy a relationship of the following Expression 1. Further, the sound-reflecting material is disposed on a substrate so that the sheet is separated from the substrate to configure a sound-reflecting structure: 12πkm>900Hz