phon

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Related to Loudness Level: equal loudness contour

phon

(fōn),
A unit of loudness of sound.

phon

(fŏn)
n.
A unit of apparent loudness, equal in number to the intensity in decibels of a 1,000-hertz tone perceived to be as loud as the sound being measured.

phon

(fōn)
A unit of loudness of sound.

phon

(fon) [Gr. phönē, voice, sound]
A unit of measure of perceived loudness.
References in periodicals archive ?
Patients underwent audiologic evaluations, including tympanometry and measurements of pure-tone air and bone conduction thresholds, speech perception in quiet and noise, and most comfortable and uncomfortable loudness levels.
DTS Boost[TM]: Maximizes acoustic power of the internal notebook speakers to deliver loudness levels while avoiding distortion
Supervisors can also monitor continuous decibel agent exposure to accumulated loudness levels over time to maintain a safe, comfortable working environment that meets OSHA standards.
According to FCC documents, undesirable changes in TV-audio loudness levels have annoyed viewers since the 1960's.