Sound pressure level chart

1. What is a high sound pressure level?
2. What does 140 dB mean?
3. What is sound pressure level LpA?

What is a high sound pressure level?

Typical Subjective Description of Sound Pressure Level

0 - 40 dB : quiet to very quiet. 60 - 80 dB : noisy. 100 dB : very noisy. > 120 dB : intolerable.

What does 140 dB mean?

120 – 140 decibels: Such as, a rock concert, auto racing, or a hammer pounding a nail. 125 – 155 decibels: Like, firecrackers or fireworks, or a jet engine. 170 – 190 decibels: For example, a shot gun blast or a rocket lift off.

What is sound pressure level LpA?

The LpA is a measure of the noise level at the operator position of the machinery. The LpA values should allow an estimation of an operator's exposure to noise from the machinery. Ideally, the LpA values are simultaneously obtained with the LWA values, using the same operating and environmental conditions.