Sound Attenuation Calculator

Input Parameters

Imperial (°F, BTU, ft)SI (°C, kW, m)

Source Sound Level (dB)

Distance (ft)

Attenuation Type

Sound Level dB

Attenuation dB

Sound Level59.5 dB(60%)

Attenuation20.5 dB(41%)

Formula:

Attenuation_{distance} = 20 \times \log_{10}(\frac{d}{d_0})

Calculation:

Attenuation_{distance} = 20 \times \log_{10}(\frac{10.00}{1})

Result:

20.00 \text{ dB}

Formula:

Attenuation_{total} = Attenuation_{distance} + C_{material}

Calculation:

Attenuation_{total} = 20.00 + 0.5

Result:

20.50 \text{ dB}

Formula:

L_{receiver} = L_{source} - Attenuation_{total}

Calculation:

L_{receiver} = 80 - 20.50

Result:

59.50 \text{ dB}