An example scale showing power ratios x and amplitude ratios √x and dB
equivalents 10 log10 x. The decibel (dB) is a logarithmic unit used to express the
ratio of two values of a physical ...
Decibel (Loudness) Comparison Chart. Here are some interesting numbers,
collected from a variety of sources, that help one to understand the volume levels
The decibel scale measures sound based on human hearing, which makes it one
of the most unusual scientific measurements.
The decibel scale is a reflection of the logarithmic response of the human ear to
... The sound intensity in decibels above the standard threshold of hearing is ...
A readable explanation of the decibel scale (dB scale), including dBA and dBC.
Also phons and sones, noise units for measuring loudness.
Noise Source. Decibel Level. Decibel Effect. Jet take-off (at 25 meters)
Recommended product: Outdoor Noise Barriers. 150. Eardrum rupture. Aircraft
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.
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
Mar 10, 2011 ... Logarithmic scales--whether for audio intensities, Earthquake energies, ...
Therefore, the decibel scale is not just useful for calculating 3 dB ...