This is at least true if the conversation is being transmitted over the phone.
If this is illegal in your country, don’t do it!
The screen on the left is before any recordings are created.
Just press the red “record” button and walk away.
Recordings are stored in MP3 format in whichever directory you choose.
To accomplish this task, a neat free system called FreeOTFE4PDA will do the trick.
The software supports a long list of encryption algorithms and supports various cypher modes and security tokens.
Your volume will be created without a signature - virtually invisible to anyone looking for it.
The software will pick up sound from the microphone, so you’ll be receiving and transmitting both.
Just double-check the software is configured on your phone to automatically accept incoming calls, as shown above.
Looks like someone already stole it…
The screen you see above is what I saw on my PC across the property in our other building.
Again - double-check that this sort of activity is legal in your area and in your situation!