@Erenn 

Hi, 
You can refer to the instructions below to troubleshoot the reported phenomenon.
Troubleshooting for better audio quality of my Tapo camera
 

If the same phenomenon persists, you can provide the following information for further analysis.
  1. List the troubleshooting you did or the settings you have checked.
  2. Please send me (@Solla-topee) the camera's MAC address via a private message. You can find it in the Tapo app > camera's Device Settings > Device Info page.
  3. On the camera's Live View page, please record a video manually that shows the reported audio phenomenon, then download it to your phone and send it to us. You can upload the video to your cloud server (such as Google Drive) or YouTube, generate a download link, and send it to me (@Solla-topee) via a private message.
 

Best Regards