When using Microsoft Teams, you may sometimes encounter situations where you can’t hear others or others can’t hear you during a meeting. While there can be many causes, most sound issues can be resolved by checking settings step by step. This guide explains common causes and how to fix them.

📋 Quick Checklist — Before Anything Else

Make sure you check the basics first:

• Your PC’s volume is not muted

• The correct speaker is selected in Teams

• The participant you’re trying to hear is not muted

• Windows/OS sound settings are correct

• Try unplugging and reconnecting headphones or a headset

• Try switching between the Teams app and browser version

🔍 Common Causes & How to Fix Them

1. Incorrect Microphone or Speaker Settings

Cause:
Teams may not be using the correct audio device.

Solution:

1. In Teams, click … (More) → Settings → Devices
   
   

2. Make sure your microphone, speaker, and camera are set to the correct device

3. Use the Test Call feature to check audio input/output

2. System Sound Settings

Cause:
Your computer’s sound settings may be affecting Teams.

Solution:

• On Windows: Go to Settings → System → Sound and check output/input devices

• Ensure the system volume isn’t muted or set to very low levels

3. Headset or Accessory Issues

Cause:
A USB headset or Bluetooth device may not be connected properly.

Solution:

• Check that your cable or Bluetooth connection is working

• Test audio with another app (e.g., YouTube)

• Reconnect the device or update its drivers if necessary

4. Teams App Problems

Cause:
The Teams app may have temporary glitches or may be outdated.

Solution:

• Restart the app

• Clear Teams cache

• Update to the latest version

5. Network Issues

Cause:
Unstable network connections can cause sound to drop or not work.

Solution:

• Try a wired connection

• Restart your Wi-Fi router

• Test on another network or device

• If in a corporate network, verify that Teams traffic/ports aren’t blocked (ask your IT/network team)

6. Security Software or Permission Settings

Cause:
Microphone permissions may be blocked by the system or security software.

Solution:

• On Windows: Go to Settings → Privacy → Microphone and allow Teams access

• Ensure that security software isn’t blocking microphone/audio access

❓ FAQ (Frequently Asked Questions)

Q1. What should I check first?
Check Teams’ device settings and run a Test Call. Also verify that Teams isn’t muted in the system volume mixer.

Q2. Sound works in other apps, but not in Teams — why?
Check that Teams isn’t using the wrong output device, and make sure Teams audio isn’t muted individually in the sound mixer.

Q3. Why does Bluetooth audio still not work?
Some Bluetooth devices have multiple profiles (e.g., stereo vs hands-free). Make sure you select the correct profile on your PC.

Q4. Audio drops right after joining the meeting.
Teams may automatically switch to another device — try manually selecting the correct microphone and speaker after joining.

Q5. Using browser version — is it different?
Basic troubleshooting is the same, but also ensure the browser has microphone/speaker permission enabled.

📌 Summary

If Teams audio won’t work:

1. Check device settings

2. Check system sound settings

3. Verify external hardware

4. Restart or update Teams

5. Check network stability

6. Confirm microphone permissions

Going through these steps one by one will help isolate the issue and fix the sound problem.

💡 Note:
Microsoft also provides an official troubleshooting guide for audio-related issues.
If you are unable to resolve the problem using the methods above, please refer to the following page.

“Fix sound or audio problems in Microsoft Teams”