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A person standing a certain distance from ten identical loudspeakers is hearing a sound level intensity...

A person standing a certain distance from ten identical loudspeakers is hearing a sound level intensity of 115 dB. What sound level intensity would this person hear if eight are turned off? (in dB)

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Answer #1

Here,

for the 10 speaker

sound level = 115 dB

if 8 are turned off

the intensity will become 1/5 times

for the sound level

sound level = 115 - 10 * log(5)

sound level = 108 dB

the sound level will be 108 dB

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