Accumulating Fan Noise

[CubicZirconia]

Lets say I have a 39 decibel heatsink fan. If I get a 36 decibel case fan (120 mm) what will my ears detect as the total sound volume?

 

[LongCoolMother]

yea, im wondering the same. if i have a 30db fan and another 25db fan. will i heard 55db? thats loud..

 

[fell8]

A 3dB SPL increase results in a percieved doubling of loudness. So if you were running two 39dB fans, it should measure out to about 42dB.

 

[boran]

a nice dBa calculator can be found here

and a comparative table of the noise here

this helped me a lot in my noise calculating

 

[nnnyyy]

thats a pretty useful calcuator

 

[CubicZirconia]

Thanks, those links are extremely helpful.

 

[Trip2way]

Ditto

Good tools here too!