등가소음
Leq = 10Log(f
1
*10
L1
+ f
2
* 10
L2
+ f
3
* 10
L3
)
In
f
1
=
f
2
=
f
3
=
L
1
= 0.1*
dB
L
2
= 0.1*
dB
L
3
= 0.1*
dB
Out
Leq(등가소음도) =
dB