uThe experience of
sound most closely related to amplitude or
intensity.
lExamples
of sounds at different dB SPL levels
for comparison.
vRustling
Leaves =~20 dB
vAverage
Speaking Voice =~60 dB
vHeavy
Traffic =~80 dB
vRock
Band =~120 dB
vPain/Damage
Threshold =~130 to 140 dB
l Loudness differs in many ways from
intensity.
uThe
threshold depends upon intensity and frequency.
uIntensity
doubles every 3 dB; loudness doubles every 8 dB.