Issues like this one are typically driver related. I would suggest you go to the ASUS support website and look up your own machine. There will almost certainly be device drivers there for your sound card and camera that are much newer than what were originally on the machine, given its history. Even if the most recent date from the Windows 8.1 era, download them, uninstall the existing device drivers for those devices, and install the ones you've downloaded.
If this does not resolve the problem then report back with the details of what, if anything, may have changed.
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
Memory is a crazy woman that hoards rags and throws away food.
~ Austin O'Malley