Ruido criteria (nc) curves y indoor ruido levels

Nc rating sistema para indoor background ruido, recommended nc levels para various building spaces.

noisecriteriacurvesTabla de datos

Overview

Engineering reference data for Noise Criteria (NC) Curves and Indoor Noise Levels 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.