Siri’s voice weird after iPhone update to iOS 16.2

After the iOS 16.2 update I’ve had trouble with Siri’s voice on my iPhone 12 Pro. First it was completely absent. I checked in settings and everything looks normal, but the voice and accent fields just say “Downloading” with the little disc spinning. I rebooted the phone and there is only a dull kind of ‘ding’ sound, no voice. There was a voice on Apple Car Play but it sounded tinny and robotic. Nothing out of the phone when not connected to Apple Car Play.

I turned off Siri and set her up again, but the result is the same, and the Voice and Accent are still “Downloading”