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 ...
graph of dB scale. Definition and examples; Sound files to show the size of a
decibel; Standard reference levels ("absolute" sound level); Logarithmic
The decibel scale measures sound based on human hearing, which makes it one
of the most unusual scientific measurements.
We often use this logarithmic scale to describe the intensity of sound.
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 ...
The decibel scale is used to measure the intensity of sound waves. A wave with
an intensity of 0 decibels is impossible to hear. Normal speech, on the other ...
A readable explanation of the decibel scale (dB scale), including dBA and dBC.
Also phons and sones, noise units for measuring loudness.
Decibel Exposure Time Guidelines. Exposure Time Guidelines. Accepted
standards for recommended permissible exposure time for continuous time
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
Without getting too technical, the dB is a unit of measure for sound intensity or
level. It is a logarithmic scale developed to express wide ranging quantities on a