Usefulness?

This app works ok, but it doesnt provide any reference to tell you equivalents. For example, I told my husband that I thought the cabin noise of our current car was quite high. So I whipped out my handy iPhone app to find out just how loud it is. I got a reading of 85db but then I tried to figure out what that is equivalent to and there was no facility to do that. I had to go to the app store to look them up here (as there are examples provided with the app advertising). I would suggest adding in some kind if reference do that the app is more useful.

vasselle about Decibels: dB Sound Level Meter