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Waves & Optics · sound

Sound Intensity Level

Expresses sound intensity relative to a reference intensity on a logarithmic scale.

L_I = 10 log₁₀(I / I₀)

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Variables

L_I
intensity leveldecibel (dB)
I
intensityW/m²
I₀
reference intensityW/m²

Reference details

Subject
Waves & Optics
Topic
sound
Plain text
L_I = 10 log10(I / I0)

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