loudness

Also known as volume, loudness perception, sound volume

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Commons category: Loudness

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~6 min read

Article

12 sections

Contents

Explanation
Hearing loss
Compensation
Normalization
Broadcast
Movie and home theaters
Music playback
Measurement
See also
Notes
References
External links

thumb|400px|right|The horizontal axis shows frequency in [[Hertz]]

In acoustics, loudness is the subjective perception of sound pressure. More formally, it is defined as the "attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud". The relation of physical attributes of sound to perceived loudness consists of physical, physiological and psychological components. The study of apparent loudness is included in the topic of psychoacoustics and employs methods of psychophysics.