Canarina Environmental Software

Canarina CUSTIC software · noise and vibration modeling · introduction 6

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Courtesy of Canarina Environmental Software

The frequency range of sound audible to humans is approximately between 20 and 20,000 Hz. The amplitude range of sound for humans has a lower limit of 0dB, called the threshold of hearing. Sound is technically at its upper limit at 194.09 dB. Sounds begin to do damage to ears at 85 dB and sounds above approximately 130 dB.

dB

Source

250

Inside of tornado

180

Rocket engine at 30 m 

120

Jet aircraft taking off at 100 m 

100

Pneumatic hammer at 2 m 

90

heavy truck at 1 m 

70

Busy traffic at 5 m 

60

Office inside

40

Residential area

10

Human breathing

0

Threshold of hearing (human with good ears)

 

Canarina CUSTIC · noise and vibration modeling · graphs · introduction 6

 

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