Model L wrote: ↑Mon Jan 03, 2022 5:14 pm
Funnily enough Pre-864 controllers have full on continuous air horn, not pulsed. I've heard the rumor about it killing drivers too, not certain how much truth there is to it however, other members might be able to chime in with better info on that.
as for the siren in the video, that does sound like a looped audio file, you can hear a slight stutter every once in a while, almost like the file being played isn't quite looped right.
I think it was also mentioned that these are on UV controllers, it is likely a looped audio file as you said, similar to Crowley TX and their air horn mods
Edit: This isn't the very first recording of gas proof protection, there was a video around here somewhere of a malfunction Whelen sounding it. Its probably gone, but congrats on being the second to record it!
Sirens may not be sexy, but they sure work.