My home has 3 "audio detectors" built into the walls. I'm not sure of the manufacturer, but I'm trying to find out what these things do. They look similar to wired glass breaks, but they appear to be much more sensitive to glass breaks, but they don't necessarily trigger using a glass break tester. Yet, they do seem to be responsive to relatively high levels of indoor noise, such as the television, vacuum cleaner, etc.
I'm considering these to be "interior follower" zones on my new Ademco15P panel. Can anyone give me a quick explanation of these detectors and what they really should do?