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Eight hours of 90-dB sound can cause damage to your ears anyĮxposure to 140-dB sound causes immediate damage (and causes actual pain). Loss is related both to the power of the sound as well as the length ofĮxposure. All the ratings above are taken near theĪny sound above 85 dB can cause hearing loss, and the To put all of that into someĬontext, here are some common sounds and their decibel ratings:ĭistance affects the intensity of sound so if you are farĪway, the power is greatly diminished. Powerful than near total silence is 30 dB. Times more powerful than near total silence is 20 dB. On the decibel scale, the smallest audible sound (near Today, the decibel is used for a wide variety of measurements in science One decibel is one tenth (Deci-) of one bel, named in honour of Alexander Of power in telephony of the early 20th century in the Bell System in the US. The definition of the decibel is based on the measurement Rallying noise levels are 98 dB except stage rallying which is 100db. Current noise levels are below, however these should beĬhecked as they can be subject to change, some classic racers are exempt on Performance but often do not have enough silencing to meet increasingly Motorsport exhausts are primarily designed for maximum Most circuits have noise limits in place to try to keepĮveryone happy.
#HIDER 2 VS KNOX FULL#
The sound of a DFV at full chat on open pipes is pure music to any motorsport fan, unfortunately, Mr Busybody from Notinmybackyardington is not always inclined to agree.