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Sound Level Chart

Sound powers for the following equation in dBA units are referenced to a picowatt (10-12 W).

Sound Power Formula - RF Cafe


Where: W1, W2 = sound power in similar units of watts

The threshold of pain for the human ear is usually taken to be around 120 dBA.




The following table presents examples of some common noise sources.

LocationMinMax
(dBA)
Inside Home2545
Inside Office3550
Inside Airplane Cabin7585
Inside Factory65100
Talking @ 3 ft5565
Shouting @ 3 ft7585
Clothes Dryer @ 3 ft5565
Vacuum @ 3 ft6580
Chain Saw @ 3 ft100120
Clothes Washer @ 3 ft5575
Car @ 25 ft @ 65 mph7080
Airplane @ 1000 ft95110
Traffic @ 300 ft4060
Rural Ambient2535

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About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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