Zoom, Fix Audio Issues (Windows)
Sometimes Zoom has poor audio quality from a built-in mic on a Windows laptop. Follow this quick guide to change an audio setting to improve the sound.
In the Zoom desktop client, open Settings (gear icon, top-right)
Select "Audio" settings
Select "Advanced"
Change the "Signal Processing" drop-down from "Auto" to "Off (Windows - Raw)"
Close the windows.
That's it!