I said 'fake', not AI. Pre-recorded video of a person from the other end with broken audio, that's a known scam technique that's been used for close to 15 years now to bait horny men on the internet for extortion and other purposes. Very well known threat model. The scammers collect a set of attractive looking pre-recorded videos of some camgirl and run it in a loop as a virtual webcam device, then pretend to have microphone/audio malfunctions.

If I'm put into a meeting with someone I recognize and their audio is broken I'm going to attempt to get an answer from them by text chat on what's going on before I go clicking any links or downloading anything.