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| Term | Definition |
|---|---|
| How is the sound intensity affected when the distance from the source is doubled? | Cuts the intensity of sound by 25% |
| In open space, 2 x distance between receiver and sound source what happens to the source intensity level? | SIL decreases by 6 dB |
| Doubling the # sound source of equal intensity | Increase of 3 dB |
| Noise Reduction calc. | NR = TL + 10 log Absorption/Area |
| TL calculation | TL = 10 log (Area/ Sum of tx area of barrier) |
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