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Originally Posted by Dave R
I disagree. 88 dB is 6 dB louder than 82 dB, that's it. I agree that the power density of the sound is 4 times higher at +6 dB, but humans don't hear power density in a linear fashion, hence the need for dB to relate sound levels in the first place. To a human, 102 dB is four times louder than 82 dB. It generally takes a 10 dB increase for a human to perceive something as "twice as loud".
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Dave,
I think we are talking about two different things. You are talking about "percieved loudness", and although there are various theories on the scaling of percieved loudness, I do agree with you that 88 dB might not seem 4X as loud to the human ear as 82 dB. But it is
noise power that causes damage to our ears. 88 dB is 4 times as powerful as 82 dB, and 4 times as damaging.
Skip,
Why does HB1624 propose to change from the dbA scale when all other states, and our current law use it? This deliberate change had to have a reason.
Dave/Skip/Woodsy,
We all agree that boats are currently too loud. We all want the MP to have an easier way to test boat noise. We all know that the MTA is not interested in having to make their boats quieter. None of us are sound experts. Let's just be sure this bill does not slip through without thorough scrutiny. Enough said.