单词 | sound pressure |
释义 | > as lemmassound pressure sound pressure n. the difference between the instantaneous pressure at a point in the presence of a sound wave and the static pressure of the medium. ΘΚΠ the world > physical sensation > hearing and noise > thing heard > [noun] > sound > sound pressure sound pressure1916 1916 Sci. Abstr. B. 19 514 (heading) Sound pressure. 1930 Jrnl. Sci. Instruments 7 113 The response at a particular frequency is measured by the e.m.f. developed by the microphone per unit sound pressure per unit area. 1976 Acustica XXXV. 255/1 The transfer function is subtracted from the harmonic analysis of sound pressure to produce the source spectrum. < as lemmas |
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