(September 15, 2023 at 2:14 pm)Anomalocaris Wrote:(September 15, 2023 at 1:34 pm)BrianSoddingBoru4 Wrote: According to my sound meter, my shop vac/dust extractor runs at 80dB, my table saw at 105dB. When I run both together, I get a reading of 105dB.
Am I looking at this wrong?
Boru
dB is a logarithmic scale, 105dB sound is 316 times more energetic than 80dB sound. Adding 80.000 dB sound on top of 105.000dB sound yields 105.014dB sound, which rounds back down to 105db. logarithmically the power in 80db sound is just too puny next to that in 105dB sound to register significantly on top of 105 dB.
Which is what I said earlier. At least I think that’s what I said - that you can’t simply add decibels. xdB + xdB doesn’t equal 2xdB.
Boru
‘I can’t be having with this.’ - Esmeralda Weatherwax
