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Hello

I suspect that my phone is tapped using the pizeoelectric buzzer.
More on how this is done is discussed

There's so much noise on this audio that I can't filter it out. A series of filtering and then amplifying and I can vaguely hear the audio.

thinguyenhalu wrote:
There's so much noise on this audio that I can't filter it out.
A series of filtering and then amplifying and I can vaguely hear the audio.

Filtering & amplifying noise can create Rorschach audio, a/k/a EVP,
which sounds like speech, but no human voices involved, e.g. ...

https://freesound.org/people/Timbre/sounds/123879/

You guys have to get into Adobe Auditions noise reduction modules. It's a bit more advanced than simple filtering.

https://helpx.adobe.com/audition/using/noise-reduction-restoration-effects.html

.Andre_Onate wrote:
You guys have to get into Adobe Auditions noise reduction modules.

Noise-reduction creates artefacts which can sound like speech,
e.g. ... https://freesound.org/people/Timbre/sounds/248088/