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phon    
n. 音響的強度單位

音響的強度單位

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英文字典中文字典相關資料:
  • Phon - Wikipedia
    Because the phon is a unit associated with a subjective percept, it is obtained by presenting the considered sound to a group of normal-hearing human listeners and by taking the median of the loudness levels they report
  • Loudness Units: Phons and Sones - HyperPhysics
    Using the rule of thumb for loudness, the sone scale was created to provide such a linear scale of loudness It is usually presumed that the standard range for orchestral music is about 40 to 100 phons
  • Word Root: phon (Root) | Membean
    This word root is the word origin of a number of English vocabulary words, including micro phon e, phon e, and sax ophone An easy way to remember that phon means “sound” is through the word sym phon y, which is many instruments making a “sound” together
  • 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
  • Phon - definition of phon by The Free Dictionary
    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 definition in American English | Collins English Dictionary
    phon in American English (fɑn) noun 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
  • 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
  • Physics:Phon - HandWiki
    The phon is a logarithmic unit of loudness level for tones and complex sounds Loudness is measured in sones, a linear unit
  • Phon - Oxford Reference
    The loudness in phons of a sound is defined as the intensity level in units of decibel sound pressure level (dB SPL) of a comparison pure tone of 1,000 hertz that is judged by the listener to be equally loud





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