An interesting demonstration

Not really sure she's "proves" anything except the cognitive link between our senses. If you now know what the hidden words are and play it again without reading them, do you hear them.  I don't. Merely them being suggested is not enough to hear them, reading them at the same time is. It's rather like singing to a record where you think you know the words what you sing is not what's on the record, but that is what you hear.