CSD313L_SoundIntensityPressureNarration

The db il realistic example db table of sound levels

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Unformatted text preview: ity with dB the reference sound. the dB IL – Realistic Example dB Table of sound levels L (loudness) and corresponding sound pressure and sound intensity Sound Sources Examples with distancea Sound Pressure p N/m2 = Pa sound field quantity Sound Pressure Level Lp dBSPL Sound Intensity I W/m2 sound energy quantity Jet aircraft, 50 m away 140 200 100 Threshold of pain 130 63.2 10 Threshold of discomfort 120 20 1 Chainsaw, 1 m distance 110 6.3 0.1 Disco, 1 m from speaker 100 2 0.01 Diesel truck, 10 m away 90 0.63 0.001 Kerbside of busy road, 5 m 80 0.2 0.0001 Vacuum cleaner, distance 1 m 70 0.063 0.00001 Conversational speech, 1 m 60 0.02 0.000001 Average home 50 0.0063 0.0000001 Quiet library 40 0.002 0.00000001 Quiet bedroom at night 30 0.00063 0.000000001 Background in TV studio 20 0.0002 0.0000000001 Rustling leaves in the distance 10 0.000063 0.00000000001 0 0.00002 0.000000000001 Threshold of hearing deciBel - Computation of Ix deciBel What if dB IL is known, Ix = ? – We will use dB IL = 10 * l...
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