Andy Dingley wrote:

On Mon, 13 Oct 2003 15:15:59 +0100, "Dee" wrote:


How loud is 43Db when compared with 52Db


9dB difference. 3dB is a doubling, which is also roughly the smallest
level that you'll notice. So this is about "3 subjective notches"
louder.


One decibel is DEFINED as teh smallest difference in sound you can hear
volume wise. Or was, Then they took the results of teh tests and
expressed it in energy per squarte foot or something.


43 dB is a "typical room" sort of level. 52dB is "outdoors on a city
street".


Nah, thats more lke 85dB

43dB is quite. 52dB is quiet converstaion when you don't want to be
overheard.




(Yes, and I _know_ that dB aren't an absolute measure)
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