phon

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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.

[German, from Greek phōnē, sound; see phone1.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

phon

(fɒn)
n
(Units) a unit of loudness that measures the intensity of a sound by the number of decibels it is above a reference tone having a frequency of 1000 hertz and a root-mean-square sound pressure of 20 × 10–6 pascal
[C20: via German from Greek phōnē sound, voice]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phon - a unit of subjective loudness
sound unit - any acoustic unit of measurement
sone - a unit of perceived loudness equal to the loudness of a 1000-hertz tone at 40 dB above threshold
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
So it was this long process of fine-tuning it." After going through individual parts of the sound with Krasinski, the editors created a custom feedback mix that wasn't quite at a sickness-inducing loudness level, but still would make the audience wince, testing what they could handle.C "We had so much negative space in the film in terms of quiet and silence, that we felt we had a little leverage to push this," Aadahl said.C So was there actually quiet on the set?
Baseline characteristics in the two groups Snorers Controls (n = 30) (n = 30) Mean age (yr) 50.97 [+ or -] 11.27 47.33 [+ or -] 11.58 Sex, n (%) Men 20 (66.7) 20 (66.7) Women 10 (33.3) 10 (33.3) Smoking, n (%) Yes 8(26.7) 14 (46.7) No 22 (73.3) 16 (53.3) Mouth breathing, n (%) Yes 17 (56.7) 2(6.7) No 13 (43.3) 28 (93.3) Loudness level, n (%) N/A Extremely loud 15 (50.0) Moderately loud 8(26.7) Not loud 7(23.3) Mean number of snores 2.30 [+ or -] 1.41 N/A per minute Table 2.
Announcing the launch at the NAB Show 2011, a major digital media industry event which runs till April 14 in Las Vegas, Dolby said the new model enabling operators to easily monitor the loudness level of audio.
The loudness level of the signal is an important link to annoyance, but when comparing signals of equal loudness or perhaps over long-term exposures, spectral qualities such as rumble become more significant.
Calculations include basic sound-level addition and noise reduction; speed of sound; hearing-damage risk; A-weighting; speech interference; loudness level; sound radiation from monopoles, dipoles, line sources, and planar sources; far-field, near-field estimations; outdoor sound propagation, including ground effects, air absorption, meteorological influences, and barriers; calculation of sound power from standard measurements; sound levels in rectangular, cylindrical, long, and flat rooms; and reverberation times in rooms.