Dell XPS 13 7390 and other machines: low or no microphone volume during Zoom calls

A pretty recent emerging issue I’ve encountered is problems with microphone volume during Zoom calls (specifically!) on some machines. One of the more popular models experiencing this problem regularly is Dell’s XPS 13 7390, which is an all-round terrific laptop. The common thread connecting all of these affected models is their use of the Realtek audio drivers (which very many laptops do these days).

The solution — or, at least, the workaround — for this one is actually quite simple. It turns out that the 4/22/2020 driver version of the Realtek Audio Driver is problematic when paired with Zoom specifically. Thus, rolling back this driver manually (by downloading a previous version from your manufacturer’s support site) should work.

Alternatively, though, you can actually just completely uninstall the driver altogether, forcing Windows to (at least temporarily) use the generic Microsoft High Definition Audio driver instead. Here’s how to (easily) accomplish that:

  • Click your search box and type appwiz.cpl, then press ENTER
  • In the resulting window, scroll down to Realtek Audio Driver
  • Click Uninstall and follow the prompts. Reboot.

After this, everything should be back to normal once again.

Donate to say "Thanks" if this post has helped save you time and money! 🙂

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