Microphone is not recognized when signing into Microsoft Teams

Dear Michael Raynor, 

Thank you for posting your question in the Microsoft Q&A forum and for your patience in dealing with this ongoing microphone issue in Microsoft Teams. I understand how frustrating it is when essential hardware isn't recognized. 

The AI-generated answer provides a valid general troubleshooting structure. However, I'd like to offer more specific steps for you to try, as the technical terms in that answer may not be practical for most users. 

Could you please work through the following steps and let me know the result? Start with the Teams app settings, as that's often the quickest fix. 

Step 1. Check Device Selection in Teams: 

• In the Teams app, click the three dots ... next to your profile picture in the top right corner and select Settings > Devices. 
• Under Audio devices, ensure your correct microphone is selected from the "Microphone" dropdown menu. 
• Use the "Make a test call" button on the same page to check if Teams can now detect audio. 

Step 2. Verify System Permissions: 

• On Windows: Go to Start > Settings > Privacy & security > Microphone. Ensure "Microphone access" is On, and verify that "Microsoft Teams" is listed and toggled On. 
• On macOS: Go to System Settings > Privacy & Security > Microphone. Ensure the checkbox for Microsoft Teams is enabled. 

Step 3. Check System Sound Settings: 

• On Windows: Go to Start > Settings > System > Sound. Under the Input section, select your microphone and use the "Microphone test" feature to verify it's working. Alternatively, you can press Win + R, type control mmsys.cpl sounds, press Enter and go to the Recording tab to ensure your mic is enabled and set as the Default Device. 
• On macOS: Open System Settings > Sound. Under the Input tab, select your microphone and adjust the input volume. 

If the issue persists after these steps, I can explore further solutions like audio drivers or app repairs. 

To help me assist you more effectively, could you please confirm: 

• Which operating system are you using (e.g., Windows 10/11, macOS, or are you using Teams on the web)? 
• What type of microphone are you using (built-in laptop mic, USB headset, wireless headphones, etc.)? 

I appreciate your effort in working on this issue. Please feel free to post back with your results or any updates. 

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".   

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If your microphone is not recognized when signing into Microsoft Teams, you can follow these troubleshooting steps:

1. Check Microphone Availability: Ensure that a microphone is connected to your device. You can check this by invoking the DeviceManager.getMicrophone API or by checking for any noMicrophoneDevicesEnumerated events.
2. Permissions: Make sure that Teams has permission to access your microphone. Check your system settings to ensure that microphone access is enabled for Teams.
3. Reconnect the Microphone: If the microphone is connected but not recognized, try unplugging it and plugging it back in. This can help the system recognize the device.
4. Check System Settings: Ensure that your operating system has not muted the microphone at the system level. Check your sound settings to confirm.
5. Update Drivers: Ensure that your audio drivers are up to date. Outdated drivers can cause recognition issues.
6. Test with Other Applications: Try using the microphone with another application to see if the issue is specific to Teams or if it is a broader problem with the microphone.

If these steps do not resolve the issue, consider creating a support ticket for further assistance.

References:

• The speaking participant's microphone has a problem