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Author Topic: questions about sound  (Read 712 times)

fuSER

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questions about sound
« on: April 30, 2003, 09:41:10 PM »

:-?  :-?

how does sound really work?

i mean, if i have 2 30db fans, does that mean i get 60 db sound...not really.  how do i calculate it?  all i know is that sound is logarithmic, but i don't know the function value or anything.
 :-?  :-?
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viridius

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questions about sound
« Reply #1 on: April 30, 2003, 09:51:20 PM »

It's like the pH scale.  As you stated, it's logarithmic, so an increase of 10 dB will sound twice as loud, but sound isn't exactly additive.  Since sound is a wave, you get interference.  If you had two 30 dB fans, you might get zero dB if the waves exactly canceled each other out or 40 dB if they were exactly in sync.
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fuSER

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questions about sound
« Reply #2 on: April 30, 2003, 10:05:25 PM »

that would be cool if i could get them to cancel out...lol,
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Skylined

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questions about sound
« Reply #3 on: April 30, 2003, 10:09:29 PM »

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