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株式会社TOZEN(トーゼン)

 

Technical data

Examples of vibration and noise tolerance

Vibration VL(dB) 45 50 55 60 65
Annoyance Indifference・・・・・・・・・・・・・・・・・Vague sense of vibration・・・・・・・・・・・・・・・Does not bother people・・・・・・・・・・・・・・・・・People feel that it is annoying
Noise dB(A) 20 25 30 35 40 45 50 55 60
NC 10~15 15~20 20~25 25~30 30~35 35~40 40~45 45~50 50~55
Loudness Perceived silence・・・・・・・・・・・・・・・Extremely quiet・・・・・・・・・・・・・・・・・・Does not bother people・・・・・・・・・・・・・・Perceive noise・・・・・・・・・・Noise cannot be ignored
Affects conversation Can hear whispers 5m away・・・・・・・・・・・ Discussion possible 10m away・・・・・・・・・・Within normal discussion range (3m)・・・・・・・・・Discussion in a loud voice
Affects telephone calls No effect on telephone calls・・・・・・・・・・・・・Making telephone calls is possible・・・・・・・・Making telephone calls is a little tricky
Spatial usage Studio Sound-proof
room
Announcement
studio
Radio
studio
TV
studio
Master control room Typical office
Assembly hall   Music room Theater (medium) Stage theater Cinema/planetarium Hall
Lobby
Hospital   Auditory
examination room
Special
hospital
Surgical theater
Hospital ward
Consulting room Hospital laboratory Waiting room
Hotel residence  

Study Bedroom・Guest room Banquet hall Lobby
Typical office   Executive suite
Large conference room
Reception room Small conference room Typical office Typing
computer room
Public building   Municipal hall Art gallery
Museum
Reading room Municipal hall/meeting room Indoor sports
facility (large)
School/church   Music classroom Auditorium
Chapel
Laboratory・Regular classroom Corridor
Commercial building   Music café・Bookstore
Jewelry store
Gallery store
Bank
Typical store
Restaurant
Dining hall

※*Extracted from Compilation of Architectural Materials 1 – Environment, edited by the Architectural Institute of Japan, and Construction Design Standards, editorial supervision by the Ministry of Land, Infrastructure, Transport and Tourism

オクターブバンド周波数
Number Name
(A) Vibration acceleration level(dB)
(B) Octave band frequency(Hz)