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Decibels and Levels

Flashcards

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0 dB(A)

Threshold of hearing, just audible sound

30 dB(A)

Whisper, quiet library

45 dB(A)

Refrigerator humming, soft rain

20 dB(A)

Rustling leaves, whispering sounds

25 dB(A)

Soft whisper, quiet rural area

60 dB(A)

Normal conversation, quiet office

100 dB(A)

Hand drill, pneumatic drill

10 dB(A)

Leaves rustling, calm breathing

55 dB(A)

Quiet suburb, conversation at home

85 dB(A)

Heavy traffic, noisy restaurant

120 dB(A)

Thunderclap, sirens

130 dB(A)

Military jet takeoff, artillery fire

110 dB(A)

Live rock music, chainsaw

70 dB(A)

Vacuum cleaner, hair dryer

140 dB(A)

Jet engine at take-off, shotgun firing

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