Mxsmanic wrote in
:

Ya know, safety announcements just may have to be made if something
catastropic happens to the electrial system and flight attendence
have to bark out orders using their own voices. I.E evacutation
orders.

Yes, but not every announcement is an evacuation order. Announcements
can be made that override all audio channels.

Yep, a response from a person who never stepped into a plane.

Reeeeeeeed carefully above.

Better yet, pull the plug to your computer and make an announcment over
your radio stack and see just how many of your imaginary passengers will
hear your announcement.

Allen