Pnc preferred 噪声 criteria

参考数据与工程 information about pnc preferred 噪声 criteria 用于 acoustics applications.

pncpreferrednoisecriteria

Overview

Engineering reference data for Pnc Preferred Noise Criteria 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.