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Speclore

Adding Decibel

Reference data and engineering information about adding decibel for acoustics applications.

addingdecibel

Overview

Engineering reference data for Adding Decibel in acoustics.

Key Formulas

Speed of Sound

c=γRTc = \sqrt{\gamma R T}

Speed of sound in an ideal gas.

Sound Level

L=10log10(I/I0)L = 10 \log_{10}(I/I_0)

Decibel level.

Wavelength

λ=c/f\lambda = c / f

Wavelength = speed / frequency.

Variables

SymbolDescriptionUnit
ccSpeed of soundm/s
LLSound leveldB
λ\lambdaWavelengthm
ffFrequencyHz

Data Table

11 rows
Signal Level Difference between two Sources(dB) / Decibels to Add to the Highest Signal Level (dB) data
col0
0
1
2
3
4
5
6
7
8
9
10

Source: engineeringtoolbox.com

References