Hi Clive R,
Thank you for reaching out. My name is Leo, a user just like you. I'd be happy to help you with your concern.
May I know if you are using a Teams app or the web version? To test Teams audio, you can select Settings and more (...) next to your profile picture at the top of Teams and then choose Settings > Devices. Choose Make a test call under Audio devices. a test call, you'll see how your mic, speaker, and camera are working. Follow the instructions from Test Call Bot and record a short message. The message will play back for you. After that, you'll get a summary of the test call, and you can go to your device settings to make changes.
For more detailed steps, you can refer to the link provided below:
https://support.microsoft.com/office/456cb611-3477-496f-b31a-6ab752a7595f
Your understanding and patience will be highly appreciated. I hope I provided a helpful information regarding your concern! Let me know if you have any further questions. Be safe always!
Best Regards,
Leo
