The decibel (dB) is a logarithmic unit used to express the ratio of two values of a
physical .... Two signals whose levels differ by one decibel have a power ratio of
As an example, a doubling of volume is not equal to twice the number of dB. The
chart below will help you to better understand the dB and how it relates to what ...
Decibel Exposure Time Guidelines ... see the tabs at the bottom of the page to
find sound levels for settings occupational, non-occupational, military, aircraft, etc
Noise Source. Decibel Level. Decibel Effect. Jet take-off (at 25 meters)
Recommended product: Outdoor Noise Barriers. 150. Eardrum rupture. Aircraft
How loud is too loud? Continued exposure to noise above 85 dBA (adjusted
decibels) over time will cause hearing loss. The volume (dBA) and the length of
A noise level chart showing examples of sounds that have dB levels ranging from
0 to 180 decibels.
Environmental Noise. weakest sound heard, 0 dB. normal conversation at 3-5 ft,
60-70 dB. dial tone of telephone, 80 dB. city traffic inside car, 85 dB. 1983 OSHA
A decibel dB(A) is a unit of measurement that indicates how loud a sound is.
Humans can hear sounds between 0 and 140 decibels.
Noise Source, Decibel Level, comment ... Turbo-fan aircraft at takeoff power at
200 ft (118 dB). Riveting machine (110 dB); live rock music (108 - 114 dB).