the emergency broadcast system is a vital channel w/ the ability to interrupt anything & everything; I've been hearing it all my life; I actually pay attention to it because I love white noise; the EBS is like the voice of the goddess from the void; unchanging u know it could on forever; yes, the Emergency Broadcast System has no words but is undeniably a poem w/ a female voice;
its message crawling across the screen; or spoken familiarly by some unknown dude, maybe the janitor left a note in the middle of the night, 'test emergency broadcast system' & he hits a button opening a mic; 'this is a test...'; repeating the message while he lights a cigarette; I heard a girl do it once; I was thinking at the time it might be his gf or a female office worker working late who said 'as long as I'm here' & went ahead & flipped the switch, grabbing the hot mic & adding quickly, 'This is a test...'
radio stations test the system too with a variety of sounds some people find annoying; writing in complaint to the radio stations but I find the sound soothing; but as I said there's more than one: there is the one that I call the cosmic trumpet; a single unbroken mechanical tone high low or in-between it never varies & would otherwise be silence; local announcers inform us 'this is a test of the Emergency Broadcast System';
sometimes the voice is robotic, which is eerie but not as disturbing as the crackling fuzz that stabs the ears like 1,000 pins; it's not even a machine it's an open system communicating w/ itself; if it had been an actual emergency we are told we would be told to switch to our local station, other words, to turn away: 'This has only been a test.'