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Maths and Decibels - Page 2

post #11 of 18
A logarythmic scale in this case means that with every step of 10dB, the intensity of the sound increase 10 fold. Thus, 10dB is ten times 0dB, and 20dB is 10 times 10dB, etc.
    
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post #12 of 18
Thread Starter 
Alrighty then (you've got your 2nd flame congrats !)
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post #13 of 18
for those of you(including myself) that get a headache at math..or are having issues with windows calculator, heres a simple chart that gives quick approx numbers http://www.acousticalsurfaces.com/ac...IOI/101_12.htm or http://www.jglacoustics.com/acoustics-dc_1.html that has a box for 2 #'s and it adds it for you
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post #14 of 18
Some what off topic... but more fan noise related.. which is more computer related:

Fan Noise Adding Chart at bottom: http://www.cpemma.co.uk/
Basic Fan Laws: http://www.cpemma.co.uk/fanlaws.html
Air Flow vs Pressure: http://www.comairrotron.com/engineering_notes_02.asp
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post #15 of 18
Quote:
Originally Posted by C-bro View Post
That says that 2 fans will be 6.02 dB louder than a single one.
That's about right. Have 6 fans running that's rated at 32dB, and they match the window air conditioner in loudness - 8ft away.
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post #16 of 18
*r-clicks and saves as .txt for future reference.*

simple + elegant = Awesome!
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post #17 of 18
Quote:
Originally Posted by Syrillian View Post
*r-clicks and saves as .txt for future reference.*

simple + elegant = Awesome!
Thanks, but for future reference I've included this info and more in a "FAQ" posted here:

http://www.overclock.net/other-cooli...ise-level.html
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post #18 of 18
...and follows with a decisive right! (nice FAQ)

C-bro....U da Man!
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