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## Summary:

- What is the mathematics involved with Sound through different mediums

## Main Question or Discussion Point

What is the mathematics involved with calculating the energy lost from sound as it passes through different mediums?

If I started off with a 70dB(A) sound wave, and after 0.5m it passed through 10mm of mild steel - what would be the sound level (in dB) 1m away from the steel plate?

To clarify, there are 3 mediums: Air > Mild Steel > Air

Air:

Density of 1.225 Kg/m³

Steel:

Density of 7850 Kg/m³

Young's modulus 207 GPa

Poisson's Ratio of 0.303

Thanks

If I started off with a 70dB(A) sound wave, and after 0.5m it passed through 10mm of mild steel - what would be the sound level (in dB) 1m away from the steel plate?

To clarify, there are 3 mediums: Air > Mild Steel > Air

Air:

Density of 1.225 Kg/m³

Steel:

Density of 7850 Kg/m³

Young's modulus 207 GPa

Poisson's Ratio of 0.303

Thanks