[testvox]

As long as you are warned that you are being recorded then the law considers you to have given consent if you decide to continue to talk. This is why all the home devices make a loud sound that you cannot disable before they begin recording.

[sotruetome]

Except that I don't know what that sound means. I know what the one my device makes is, but I've never heard the others. Unless it's a human voice saying, "This conversation is now being recorded" I can't be expected to know what a random beep from a device means. It could just mean the person got a notification or something. (And even if it is a recognizable sentence, it assumes I understand the human language the device is set to.)