Turn off the voice feedback "new application added"

Whenever an application is added to my Applications folder, I get a voice saying "New application added". This has been going on perhaps since Monterey, and I have no found a way to turn it off.

It can be very annoying, if I have my mac in a public place, or just if I have a few updates from the App Store - each one will also say "new application added".

Can anyone tell me how to turn this off?