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      01-08-2019, 09:59 AM   #85
Billfitz
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Drives: '15 328iX GT
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Quote:
Originally Posted by COKen View Post
A power mower is about 94 db.
At what distance? SPL goes down by 6dB with each doubling of distance from the source, up by 6dB with each halving of distance. At what RPM? Idle, midrange or full throttle? Is that an A-weighted or C-weighted result? In the low frequencies there can be as much as a 50dB difference between the two. Your eardrums can be pounded into mush by low bass while an A-weighted meter won't even register it. These are just a few of the variables that make a simple statute unenforceable.
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