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phon    
n. 音响的强度单位

音响的强度单位


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  • Phon - Wikipedia
    The phon is a logarithmic unit of loudness level for tones and complex sounds Loudness is measured in sones, a linear unit
  • Loudness Units: Phons and Sones - HyperPhysics
    The use of the phon as a unit of loudness is an improvement over just quoting the level in decibels, but it is still not a measurement which is directly proportional to loudness Using the rule of thumb for loudness, the sone scale was created to provide such a linear scale of loudness
  • Phon | Sound Level, Decibel Acoustics | Britannica
    phon, unit of loudness level The loudness level of a sound is a subjective, rather than an objective, measure To measure loudness, the volume of a 1,000-hertz reference tone is adjusted until it is perceived by listeners to be equally as loud as the sound being measured
  • PHON Definition Meaning | Dictionary. com
    Phon definition: a unit for measuring the apparent loudness of a sound, equal in number for a given sound to the intensity in decibels of a sound having a frequency of 1000 cycles per second when, in the judgment of a group of listeners, the two sounds are of equal loudness See examples of PHON used in a sentence
  • PHON Definition Meaning | Merriam-Webster Medical
    The meaning of PHON is the unit of loudness on a scale beginning at zero for the faintest audible sound and corresponding to the decibel scale of sound intensity with the number of phons of a given sound being equal to the decibels of a pure 1000-hertz tone judged by the average listener to be equal in loudness to the given sound
  • PHON definition in American English | Collins English Dictionary
    3 senses: a unit of loudness that measures the intensity of a sound by the number of decibels it is above a reference tone Click for more definitions
  • Phon - (College Physics I – Introduction) - Vocab . . . - Fiveable
    A phon is a unit of perceived loudness level for pure tones It is numerically equal to the sound pressure level in decibels (dB) of a 1 kHz tone that is perceived as equally loud
  • Phon Definition Meaning - YourDictionary
    Phon definition: A measure of the apparent loudness level of a sound with respect to a 1,000-cycle-per-second pure tone: based on the subjective judgment of the human ear or on objective comparisons of acoustical measurements
  • phon - Wiktionary, the free dictionary
    phon (plural phons) A unit of apparent loudness, equal in number to the intensity in decibels of a 1,000-hertz tone judged to be as loud as the sound being measured
  • PHON - Simon Fraser University
    phon A unit used to describe the LOUDNESS LEVEL of a given sound or noise The system is based on EQUAL LOUDNESS CONTOURS , where 0 phons at 1,000 Hz is set at 0 decibels, the THRESHOLD OF HEARING at that frequency (see graph)





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