It's funny how everyone is so worried about the sound of your bow and how every one wants to quiet them down so that the deer won't jump when he hears the shot.
At bowsite.com they performed a recent test putting the top bows in the market today against each other in many different catagories. One of them was sound to see which bows were louder than others. It was interesting to read that some bows they could easily tell were louder than others when standing right next to the guy that was shooting, But when they stood down range by the target(protected of course) None of them could hear the difference between any of the bows. I guess the way i look at it a deer's hearing is so great he's going to hear you no madder how quiet your bow is. Heres that test they did if you want to read it.
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http://www.bowsite.com/BOWSITE/features/articles/equipment/2005head2head/
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