Measuring SoundI W
T,.,-
is .-
Thunder Storm
Shouting in Ear 1
IIII Heavy
Truck
Piston -Powered
Single Engine
Living Room
LSOU-nd: decibe'[s
dB
160
140
Siren/Jet Engine
'
120 Industry
10 0
0 Motorcycle at 25 mph
6 0 Co�ation j%�`
40 -
2 0 Rustling of Leaves
E
Threshold of Hearing