Sound Power - Table of Some Sound Sources

Table of Some Sound Sources

Situation
and
sound source		 sound power
Pac
watts		 sound power
level Lw
dB re 10−12 W
Rocket engine 1,000,000 W 180 dB
Turbojet engine 10,000 W 160 dB
Siren 1,000 W 150 dB
Heavy truck engine or
loudspeaker rock concert		 100 W 140 dB
Machine gun 10 W 130 dB
Jackhammer 1 W 120 dB
Excavator, trumpet 0.3 W 115 dB
Chain saw 0.1 W 110 dB
Helicopter 0.01 W 100 dB
Loud speech,
vivid children		 0.001 W 90 dB
Usual talking,
Typewriter		 10−5 W 70 dB
Refrigerator 10−7 W 50 dB

Usable music sound (trumpet) and noise sound (excavator) both have the same sound power of 0.3 watts, but will be judged psychoacoustically to be different levels.

Read more about this topic:  Sound Power

Famous quotes containing the words table, sound and/or sources:

    “For the elemental creatures go
    About my table to and fro,
    That hurry from unmeasured mind
    To rant and rage in flood and wind....
    ”
    —William Butler Yeats (1865–1939)

    “Comrades, leave me here a little, while as yet ‘tis early morn:
    Leave me here, and when you want me, sound upon the bugle-horn.”
    —Alfred Tennyson (1809–1892)

    “On board ship there are many sources of joy of which the land knows nothing. You may flirt and dance at sixty; and if you are awkward in the turn of a valse, you may put it down to the motion of the ship. You need wear no gloves, and may drink your soda-and-brandy without being ashamed of it.”
    —Anthony Trollope (1815–1882)