Acoustic is sound. Like music is manipulating how you feel.

There is also CIA research on electrical manipulation of the nerve system. Including the ear as listed in your link below.
In Jessie Ventura's conspiracy theory, you can find an episode about the ear manipulation. Via close contact, though.
The hearing of voices as was talked about in the episode, is usually spirit manipulation and not electrical manipulation.
You can easily check it by shielding your head from EM-radiation if you think it is EM-waves.
The famous tin-head meme was based on that, but shielding with any metal will do.
Spirits do not care much about metal shielding, and they like to manipulate people towards fear.

The cell-towers themselves are mainly tuned into communication frequencies.
These frequencies can give depression-like feelings to people. But somehow this is not listed in the CIA research.
You can think of manipulation like in electro-acupuncture, but with frequencies.