Hello there. So I was making my own sirens taking a YouTube video and converted it into mp3. I got into audacity and made the sirens sound good and the loop was perfect. I exported the sirens to WAV 16 bit PCM and gone into openIV, exported the vehicles.awc and put all the WAV siren files into the vehicles folder. I imported the vehicles.oac and it says that the files aren’t imported and it needs to be some kind of “MONO” file 16 bit. Anyone that can help out a bit?