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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