【終極家訪】訪 將軍

[Leo Yeh]

(1) 基本上測量時只是大概，並非最好的測量狀態，實際上應該會更安靜
(2) 將軍的試聽室並非完全吸音，所以跟錄音室是不一樣的


Sound Levels and Human Response
(聲壓與人類的感覺)

Common sounds Noise Level [dB] Effect

Rocket launching pad (no ear protection) 180 Irreversible hearing loss
火箭起飛，180dB，對人耳永久的傷害

Carrier deck jet operation Air raid siren 140 Painfully loud

Thunderclap 130

Jet takeoff (200 ft) Auto horn (3 ft) 120 Maximum vocal effort
噴射機起飛200ft高，或汽車喇叭3ft遠，120dB，人耳最大的承受了

Pile driver Rock concert 110 Extremely loud


Garbage truck Firecrackers 100 Very loud

Heavy truck (50 ft) City traffic 90 Very annoying

Hearing damage (8 Hrs) Alarm clock (2 ft) Hair dryer 80 Annoying

Noisy restaurant Freeway traffic Business office 70 Telephone use difficult

Air conditioning unit Conversational speech 60 Intrusive

Light auto traffic (100 ft) 50 Quiet

Living room Bedroom Quiet office 40
客廳、臥房、安靜的辦公室，40dB

Library Soft whisper (15 ft) 30 Very quiet
圖書館，30dB

Broadcasting studio 20

10 Just audible

0 Hearing begins



http://www.eie.fceia.unr.edu.ar/~acu...e/soundlev.htm
http://www.gcaudio.com/resources/howtos/loudness.html
http://www.ccohs.ca/oshanswers/phys_...ise_basic.html
http://www.rcaanews.org/noiselev.htm