Ok so, last time this muffling sound happened with this siren issue, they say it can only be 5 seconds long, so this is basically 2 sirens i downloaded, wail and yelp/ whelen. and i put then together with sony vegas, it sounds fine on there and its only 5 secs long, it might be the way i rendered it? any suggestions?
Heres the Whelen Wail & Yelp Download link.
Wail and Yelp Dual
Whelen Wail
Whelen Yelp