...Useful, I suppose, for driving people into psychosis by having voices that follow only them around.
Exactly, feel it on your teeths.
"Subliminal Messaging" (perception/persuasion) :: Is this where this topic is heading towards?The bottom line is high level, high frequency tones of any type should only exist in the electrical domain.
I remember the stories about peeps rushing out to buy 57.8% more popcorn during intermission at a theater in FortLee N.J. (Lee Theater on LemoineAve. to be exact!) after being exposed to 3mS (every 5Seconds) images of popcorn (etc.)... 17 years later (1974) FCC banned the practice from the airwaves.
The whole thing was based on a hoax that perpetuates to this day. See Snopes for myth busting (et al).
Of course, Backmasking is a whole other fun topic!
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