音 level

Reference data と engineering information about 音 level for acoustics applications.

soundlevel

Overview

Engineering reference data for Sound Level in acoustics.

$c = \sqrt{\gamma R T}$

Speed of sound in an ideal gas.

$L = 10 \log_{10}(I/I_0)$

Decibel level.

$\lambda = c / f$

Wavelength = speed / frequency.