| appearance as argument number 1 |
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| (documentation DecibelA EnglishLanguage "A_weighting is the most commonly used of a family of curves defined in the International standard IEC 61672:2003 and various national standards relating to the measurement of sound pressure level.[1] A_weighting is applied to instrument_measured sound levels in an effort to account for the relative loudness perceived by the human ear, as the ear is less sensitive to low audio frequencies. It is employed by arithmetically adding a table of values, listed by octave or third_octave bands, to the measured sound pressure levels in dB. The resulting octave band measurements are usually added (logarithmic method) to provide a single A_weighted value describing the sound; the units are written as dB(A).[from Wikipedia]") | Merge.kif 7476-7485 | |
| (instance DecibelA SoundPressureLevelUnit) | Merge.kif 7474-7474 | Decibel a_weighted is an instance of sound pressure level unit |
| appearance as argument number 2 |
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| (termFormat EnglishLanguage DecibelA "decibel a_weighted") | domainEnglishFormat.kif 64772-64772 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners