An example scale showing power ratios x and amplitude ratios √x and dB
equivalents 10 log10 x. It is easier to grasp and compare 2- or 3-digit numbers
than to compare up to 10 digits. The deci...
Decibel (Loudness) Comparison Chart. Here are some interesting numbers,
collected from a variety of sources, that help one to understand the volume levels
We often use this logarithmic scale to describe the intensity of sound.
The decibel scale measures sound based on human hearing, which makes it one
of the most unusual scientific measurements.
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.
A readable explanation of the decibel scale (dB scale), including dBA and dBC.
Also phons and sones, noise units for measuring loudness.
Using the dB(A) filter, the sound level meter is less sensitive to very high and very
low frequencies. Measurements made with this scale are expressed as dB(A).
Noise Source. Decibel Level. Decibel Effect. Jet take-off (at 25 meters)
Recommended product: Outdoor Noise Barriers. 150. Eardrum rupture. Aircraft
Sound waves are introduced into a medium by the vibration of an object. For
example, a vibrating guitar string forces surrounding air molecules to be ...
Loudness and the Decibel Scale. Another property of sound or noise is its
loudness. A loud noise usually has a larger pressure variation and a weak one