I'm all for noise control, however I don't think it wil save a lot of ponds but it can't hurt. But let first look at noise we have around us and we have no problem with it. Noise is traditionaly a big part of motorsport racing, I don't think to many people would attend Nascar, drag, F1 or any other form of motorsport if they were wishper quiet, imagine 40 + electric cars in nascar race?????WOW, some people like loud music that why we build 300W speakers, others like Harly Davidson etc. If our hobby was classified as a sport and was making significant economical impact on places where races are held city officials would not have problem with the noise and sites would not be lost.
Allways bugs me when people try to sell noise control isue telling people how muffled pipes are faster, can anyone explain to me why would they be faster. If using a muffler didn't make any difference on performance or could actualy improve it than could somebody please, please tell this F1, nascar, drag car, bike racing guys. I'm sure they would not refuse few free extra HP's.
If IMPBA starts to measure Db levels than very clear rules should be writen or it will lead to more bickering. Measuring Db levels can be tricky because Inverse square law. changing a discance affects measured Db a lot. Of course 6 boats will make more noise than 3 (there are formulas to figure out noise increase) and the loudest boat in a pack will be just a part of whole noise. If a 108 Db boat is running together with 95 DB boats you will not see 108 on the meter but closer to 100. You can't measure single boat in a pack because Db meter measures a pressure wave and that would include every noise in a picture (engine, boat vibrations, boat hitting the water, prop hitting the water etc).