08-23-2018, 03:59 PM
|
|
CC Member
|
|
|
Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,776
|
|
Not Ranked
Quote:
Originally Posted by PSYCHO
Hey Gaz how's things mate,
Funny thing with the meter was I used 2 different ones over a couple of days yes they are open pipes and after 3500 they seem to reduce DBs by about 10 a bit weird but could be the sweet spot for the quad cams at 6500 it wasn't much louder only by 7 dbs unless you stabbed it then she was insanely loud lol
Cheers Psycho
|
You used the meter.
Have you done this before, do you know the procedure, as used by the Police, Transport Dept etc?
As Treeve has said below, each 3 dB increase represents a noise twice as loud, as perceived by the human ear.
You can see here, you compare to a jet fighter:
http://www.industrialnoisecontrol.co...e-examples.htm
Quote:
Originally Posted by Treeve
Decibels are a logarithmic scale with each 3dB representing a doubling of the noise. So 7 dB isn’t a small increase, it means it’s a little over 4 times louder.
|
I'm glad somebody else knows this.
__________________
Gary
Gold Certified Holden Technician
Last edited by Gaz64; 08-23-2018 at 04:03 PM..
|