After suffering from some wind noise on my Sony TG3 outside I looked for a way to reduce it. I found some of the guide for homemade wind shields using fake fur and velcro but they didn't work.
I then found a company who cut them to size (thewindcutter.com) and sold me one for my Sony TG3 for £11 delivered in 9 days from the USA to the UK.
Seriously its awesome!! Totally eliminated wind noise when I put it next to a fan so looking forward now to try this outside. Excuse the layout for the testing as I was in a rush :)
Also, the TV volume and fan speed stayed the same all the time, its just the windcutter did such a good job of stopping the wind noise that you can properly hear it!