Anechoic room for the entire auditory range

Details Anechoic room for the entire auditory range Anechoic room for the entire auditory range

1998-09-04

2000-06-13

Dang, Khanh

Acoustics

Auditorium

181290, 181295, E04B 199

Patent

active

060737220

ABSTRACT:
A low reverberating room for the entire auditory range. In particular, for ow frequency ranges below 100 Hz, in which the walls and ceiling are covered with sound absorbers. The sound absorbers on a surface of about 70-90% of a room, not including the floor, have a depth of <0.5 m preferably <0.3. The sound absorber also has a closed, plane but acoustically permeable surface, are built up of multiple layers. The sound absorbers are about 20-70% in similarity to composite-plate resonators. They are also provided with inside plates, made of metal or heavy foil, which are designed of varying thickness for absorption in various frequency ranges.

REFERENCES:
patent: 5750944 (1998-05-01), Fuchs

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