I just did this a few months ago. I did my test at 80db. I read that If you can do your test at 90 db you will get more accurate results. The only advice I have is, If you have earplugs, I would wear them. I started without them, but even at 80db, by the time I got from 30hz to 60hz in 1 hz intervals I had a headache. If you have a tripod the meter mounts nicely to the top. Good luck, it will add another dimension when you look at your.
