Monday, November 16, 2015

Fustration.... The Village of Justice in Illinois needs to wake up!

I must be the only one in the entire Village of Justice that keeps track of noise levels.  Talked to even more neighbors that believe the noise levels have increased dramatically over the last few years (they brought it up).  I explained my day job and the project I've been doing, recording traffic noise daily, and we fascinated. It has been amazing how many times I talk to even random neighbors and they mention the traffic noise in the Village.  Sometime the levels of noise are INSANE at Commissioner's Park but hey, it's more important to fine people who walk dogs there than to start some program to reduce the traffic noise (I've recorded 70dB on two occasions at the park).




I took this from: http://www.sengpielaudio.com/calculator-levelchange.htm

Level
change
Volume
Loudness
Voltage
Sound pressure
Acoustic Power
Sound Intensity
+60 dB 64   1000      1000000              
+50 dB 32   316      100000            
+40 dB 16   100      10000          
+30 dB 8 31.6 1000        
+20 dB 4 10 100      
+10 dB 2.0 = double 3.16 = √10 10    
+6 dB 1.52 times 2.0 = double 4.0
+3 dB 1.23 times 1.414 times = √2 2.0 = double
- - - - ±0 dB - - - - - - - - 1.0 - - - - - - - - - - - 1.0 - - - - - - - - - - - 1.0 - - - - -
−3 dB 0.816 times 0.707 times 0.5 = half
−6 dB 0.660 times 0.5 = half 0.25
−10 dB 0.5 = half  0.316 0.1
−20 dB           1/4 = 0.25 0.100   0.01
−30 dB           0.125    0.0316     0.001

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