I get this constantly as well - and that’s with 1GB fiber internet (and low latency, great wifi coverage (PC is literally 6 ft from the access point), etc.) US-East, and it’s been going on for at least a couple of days.
For some reason think back to the old narrator library from the C= Amiga… So bad that I turn down the volume of the sim to 0.
Same problem here lately (1-2 weeks). And ATC even drops out sometimes sound and text-vice. Copilot luckily does the job communicating with it on automatic, even if the sound and text from ATC is complitely gone. Happens suddenly in mid-flight.
Did all or 3 short flights this past weekend. Azure Voice dropped on all 3 of them, cutting over to local TTS voices either on departure taxi or shortly after takeoff.