The key is your last sentence ;-)

would make sense that perception could be manipulated externally by those who are not ignorant on such matters.

there is enough open science to join the dots.

Note that these are sound waves in the video.
But as with electrogravitics there is also sonoelectrochemistry - frequencies in one medium can create frequencies in another medium. That's the magic. Like trying to bend a crystal will create a small current - or snap your crystal!