If your Zoom audio isn't working, there are many possible reasons for it and several ways to troubleshoot the issue.
The best way to improve the audio quality on your Zoom calls is to use a high quality microphone and set it up properly.
Zoom users on the free Basic plan may start seeing ads starting today. At the outset, ads will only appear on the browser page after a call ends, and you'll only see them following meetings hosted by ...