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Old 04-05-2005, 05:54 AM   #1 (permalink)
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Default quick question about decibels

hi

I was just wondering about the amount of noise my computer will create, I have no Idea about decibels. I am putting 6, 120mm 14db fans in my computer, does this mean that the total amount of noise generated will be 14db or 88db?

Many thanks, Carl
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Old 04-05-2005, 06:11 AM   #2 (permalink)
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sound levels are logarithmic, ya it means it cumulative, but it may not sound that way when mounted in the case sitting on the floor running

decibel levels like I said are logarithmic, meaning they dont increase in a linear fashion, they go in jumps of orders of magnitude based on base 10
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Old 04-05-2005, 06:11 AM   #3 (permalink)
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well, the human ear can only hear from about 21DbA upwards
your fans won't combine their much of noise to make more, there are just more sound waves all with a low amplitude (higher amplitude = louder)
and occasionally some of the sound waves will combine, but not many will
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Old 04-05-2005, 06:24 AM   #4 (permalink)
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It woud be about 23 db. To get an idea of how loud decibel levels actually are check out this page.
http://www.lhh.org/noise/decibel.htm
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Old 04-05-2005, 07:00 AM   #5 (permalink)
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thanks guys, I have concluded that my pc will be very quiet and have more than adaquate cooling

Carl
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Old 04-05-2005, 08:12 AM   #6 (permalink)
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Quote:
Originally posted by The_Urge
It woud be about 23 db. To get an idea of how loud decibel levels actually are check out this page.
http://www.lhh.org/noise/decibel.htm
Meh I calculated 24 decimals


14 + 5 x 3 = oh wait, 23...
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