Do sounds add together to make louder sounds?

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Phoebe

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Do sounds add together to make louder sounds?
« on: 08/03/2010 13:30:01 »
Phoebe asked the Naked Scientists:
   
If there are multiple sources of sound in a particular area - say 20 sources of air conditioning units, each creating about 60 Decibels of sound, does this create more sound (and a louder sound) in the same way that lighting multiple candles creates more light?

What do you think?
« Last Edit: 08/03/2010 13:30:01 by _system »

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Offline RD

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Do sounds add together to make louder sounds?
« Reply #1 on: 08/03/2010 18:07:20 »
Q. Do sounds add together to make louder sounds?

A. Yes, with the exception of anti-phase sound, as used in noise cancelling headphones.

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Offline doppler1

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Do sounds add together to make louder sounds?
« Reply #2 on: 10/03/2010 06:40:33 »
Nuff said