A question asked about to fans at 60 dB of sound.
If one fan is removed, what is the dB
The answer said half the sound would be a change of 3 dB, but I always read the change in half the sound is 10 dB.
I put 50 dB but the blackspecs answer is 57 dB. Can you please explain this to me?
@gloriaw92 sure thing!
When it comes to acoustics and having multiple fans with similar sound levels the equation that we would be looking at is L
t = L
s + 10log(n) where n = the number of fans, L
t = the total sound observed or 60dB and L
s is the decibel level of an individual fan. In our case the equation would look like 60dB = L
s + 10log(2) or L
s + 3 since 10log(2) = 3. Which translates to 60dB = L
s+3 or L
s = 57dB.
This works for 3 fans, 5 fans, 20 fans etc. as long as the fans are equal in sound intensity.
Hope this helps!