Today at 3:15 PM, the fire alarm system at my local high school was activated. They still have not released a statement on why the alarm was activated. The interesting thing about the alarm was the fact that there was a message and tone that I have never heard from a EST system before. I do have a video, however it is from someone else, and there is talking over the message. Video. The tone almost sounds like a low-pitched EST genesis, and the voice message is hard to hear, though it is pretty interesting.
EDIT
Sorry for the pause in the middle of the video, it was on snapchat so it paused in the middle.
Why does it sound like the speaker is failing? the pause in the middle of the video is because this was a snapchat story, and it only takes short videos and splices them together.
I know with EST/Kidde you can even use a microphone to record messages for voice systems. Maybe why it sounds low quality? I just use the messages that EST/Kidde give with the program.