Teams audio stops working because of device settings, permission issues, driver problems, or app conflicts. You can fix most problems in under five minutes by checking your microphone permissions, restarting Teams, updating audio drivers, or switching devices. Start by checking if Teams actually has permission to use your microphone.
Why Your Teams Audio Isn’t Working
Teams audio fails for predictable reasons. Your computer either doesn’t know which device to use, the app doesn’t have permission, the device driver is outdated, or something is blocking the connection. These aren’t mysterious problems. They’re just settings that got changed or never got configured right.
The good news: you don’t need technical expertise to fix this. You just need to understand what Teams needs to work.
Part 1: The Quickest Fixes (Try These First)
Restart Teams Completely
Don’t just close the window. Close it fully.
- Click the Teams icon in your system tray (bottom right on Windows, top right on Mac)
- Select “Quit” or “Exit”
- Wait 10 seconds
- Open Teams again
- Try audio in a test call
This fixes most temporary glitches. Teams sometimes loses track of audio devices when your computer wakes up or when you switch networks. A full restart resets the connection.
Check Your Microphone Permission
Teams can’t use your microphone if Windows or Mac blocked it.
On Windows 10/11:
- Open Settings
- Go to Privacy & Security > Microphone
- Find Microsoft Teams in the list
- Make sure it says “Allow”
- If it shows “Deny” or isn’t listed, click “Add an app” and find Teams
On Mac:
- Open System Settings
- Go to Privacy & Security > Microphone
- Look for Teams in the list
- Make sure Teams has a checkmark
If Teams isn’t in the list yet, start a Teams call and your computer will prompt you. Allow it.
Check Your Speaker and Microphone Settings in Teams
Open Teams and verify which devices it’s actually using.
- Click your profile picture (top right)
- Select Settings
- Go to Devices > Audio Devices
- You’ll see three options: Microphone, Speaker, and Camera
- Check the dropdown for each one
- Make sure your actual devices are selected (not “Not set” or a disconnected device)
Many people skip this step and assume Teams knows which device to use. It doesn’t always. You need to tell it.
Test Your Microphone Outside Teams
Your problem might not be Teams at all.
On Windows:
- Open Settings
- Go to Privacy & Security > Microphone
- Scroll down to “Test your microphone”
- Talk normally
- You’ll see a green bar if the microphone works
On Mac:
- Open System Preferences
- Go to Sound > Input
- Select your microphone
- Talk normally
- Watch the input level meter move
If your microphone works here but not in Teams, the problem is Teams permissions or settings. If it doesn’t work here, your microphone has a hardware or driver problem.
Try a Different Microphone or Headset
If you have another microphone, plug it in and select it in Teams settings. This tells you whether your current microphone is broken or whether Teams just won’t recognize it.
This step is crucial. It separates hardware problems from software problems instantly.
Part 2: Device and Driver Issues
Update Your Audio Drivers
Outdated drivers cause about 30% of audio problems. Your computer needs the right drivers to talk to your audio devices.
On Windows:
- Right-click the Start menu
- Select Device Manager
- Find “Sound, video and game controllers”
- Expand it
- Right-click your audio device (usually called Realtek Audio, Conexant, or something similar)
- Select “Update driver”
- Choose “Search automatically for updated driver software”
- Restart your computer after updating
On Mac:
- Click the Apple menu
- Select System Settings
- Go to General > Software Update
- Install any available updates (this includes audio drivers)
- Restart when finished
Outdated drivers often show no error message. Your audio just doesn’t work. Updating fixes it silently.
Uninstall and Reinstall Your Audio Driver (Windows)
If updating doesn’t work, try removing the driver completely and let Windows reinstall it.
- Open Device Manager
- Right-click your audio device
- Select “Uninstall device”
- Restart your computer
- Windows will automatically reinstall the driver
This forces Windows to use a fresh copy. Many audio problems come from a driver file getting corrupted. Reinstalling replaces that corrupted file.
Check Your Audio Device in Device Manager
Sometimes Windows forgets about your microphone entirely or marks it as broken.
- Open Device Manager
- Look for your microphone or audio device
- If there’s a yellow exclamation mark or a down arrow, the device isn’t working
- Right-click it and select “Enable device”
- If that doesn’t work, uninstall it and restart (Windows will find it again)
A yellow exclamation mark means Windows recognizes the device but can’t use it. This is almost always a driver problem.
Check for Disconnected or Unknown Devices
- Open Device Manager
- Click the View menu
- Select “Show hidden devices”
- Look for anything labeled “Unknown device” or “Other devices”
- If there’s an unrecognized audio device, right-click it and select “Update driver”
Sometimes Windows installs devices incorrectly. They show up as “Unknown” and don’t work. Updating the driver tells Windows what the device actually is.
Part 3: Teams-Specific Settings and Fixes
Disable “Make Incoming Ring Sounds and Notifications Muted”
This toggle sometimes breaks audio completely.
- Go to Settings > Audio Devices
- Scroll down to “Incoming calls”
- Make sure “Make incoming ring sounds and notifications muted” is OFF (unchecked)
- Restart Teams
This setting mutes all Teams audio, but it occasionally stays stuck on. Toggling it off usually fixes audio that mysteriously disappeared.
Clear Your Audio Cache
Teams stores audio settings and device information. Sometimes this cache gets corrupted.
On Windows:
- Close Teams completely
- Open File Explorer
- Type this in the address bar: %appdata%\Microsoft\Teams
- Delete the “media-stack” folder if it exists
- Open Teams again
On Mac:
- Close Teams completely
- Open Finder
- Press Command + Shift + G
- Type: ~/Library/Application Support/Microsoft/Teams
- Delete the “media-stack” folder
- Open Teams again
Teams rebuilds this folder when you restart. This often fixes persistent audio problems that nothing else resolves.
Disable Hardware Acceleration
Hardware acceleration speeds up video but sometimes breaks audio devices.
- Open Teams Settings
- Go to General
- Look for “Devices” or “Hardware”
- Uncheck “Disable GPU hardware acceleration”
- Restart Teams
The toggle is confusing. You want to disable the acceleration. Try both settings and see which works.
Check Your Audio Permissions in Windows Privacy Settings
Windows sometimes blocks Teams from accessing microphone input at the system level.
- Open Settings
- Go to Privacy & Security > App permissions
- Click “Microphone”
- Make sure the toggle for Teams is ON (blue)
- If you have multiple Teams apps listed, turn them all on
This is different from the earlier permission check. This controls whether Teams can access your microphone at the Windows level, not just in Teams settings.
Run Teams in Administrator Mode
Some audio devices require higher permissions.
- Right-click the Teams shortcut
- Select “Run as administrator”
- Click “Yes” when prompted
- Test audio in a call
If audio works in administrator mode but not normally, you have a permission issue. You can permanently run Teams as administrator by right-clicking the shortcut, selecting Properties, going to Advanced, and checking “Run this program as an administrator.”
Part 4: Troubleshooting Specific Scenarios
Audio Works in Some Apps But Not Teams
This tells you Teams permissions are blocked somewhere.
Check these in order:
- The app-level permission (Settings > Privacy & Security > Microphone > Teams)
- The Teams device settings (Teams Settings > Audio Devices)
- Your firewall or antivirus software
- Windows audio privacy settings (Settings > Privacy & Security > Microphone)
If audio works in Zoom, Skype, or Discord but not Teams, the problem is specifically with how Teams is configured.
Audio Works for Others but Not Your Microphone
Your microphone is working but Teams won’t use it.
- Go to Teams Settings > Audio Devices
- Check the Microphone dropdown
- If it says “Not set” or shows a device you’re not using, change it
- If your microphone isn’t listed, unplug it and plug it back in
- Wait 5 seconds and check the dropdown again
Sometimes Teams doesn’t detect a new microphone until you replug it or restart Teams.
Audio Is Cutting In and Out
Your microphone is recognized but connection is unstable.
Check these:
- Your internet connection (do a speed test)
- Your microphone cable (if using a wired mic)
- USB port (try a different one)
- Microphone mute button (make sure it’s not toggled)
- Your computer CPU usage (if you’re running too many programs, Teams loses audio priority)
Cutting in and out during calls often means your computer is overworked or your internet is unstable. Closing other programs usually fixes this.
You Can Hear Others but They Can’t Hear You
Your speaker works but your microphone doesn’t.
- Go to Teams Settings > Audio Devices
- Check if your microphone is selected
- Click “Make a test call” and follow the prompts
- Listen to the playback to hear if your voice was recorded
- If your voice wasn’t recorded, your microphone isn’t working
The test call feature is the fastest diagnostic tool. If your voice doesn’t record, you know the microphone itself is the problem, not Teams settings.
They Can Hear You But You Can’t Hear Them
Your microphone works but your speaker doesn’t.
- Go to Teams Settings > Audio Devices
- Check if the correct speaker is selected
- Test the speaker volume (it might be muted)
- Try changing to a different speaker device if available
- Adjust the speaker volume slider in Teams
This is usually a simple speaker selection problem. Most computers have multiple audio outputs (built-in speakers, HDMI, headphones). Teams might be sending audio to the wrong one.
Part 5: Advanced Troubleshooting
Reinstall Teams Completely
If nothing else works, remove Teams entirely and install it fresh.
On Windows:
- Open Settings
- Go to Apps > Apps & Features
- Find Microsoft Teams
- Click it and select “Uninstall”
- Follow the prompts
- Restart your computer
- Go to microsoft.com/teams and download Teams again
- Install and restart
On Mac:
- Open Finder
- Go to Applications
- Drag Microsoft Teams to Trash
- Empty Trash
- Restart your computer
- Download Teams from microsoft.com/teams
- Install and restart
A fresh install removes any corrupted files that might be causing audio problems. This fixes about 80% of persistent issues.
Check Your Microphone Privacy Settings in Windows Security
Windows has multiple layers of microphone protection.
- Open Windows Security
- Click “App & browser control”
- Look for microphone access settings
- Make sure Teams can access the microphone
Some antivirus programs add extra restrictions. This step bypasses those restrictions for Teams.
Disable Background Noise Suppression
Teams reduces background noise automatically. Sometimes this setting breaks audio completely.
- Open Teams Settings
- Go to Devices > Audio Devices
- Find “Microphone” settings
- Look for any noise suppression or echo cancellation settings
- Disable them if they’re causing problems
- Restart Teams
Try disabling this if your voice sounds muted or delayed. You’ll hear more background noise, but at least you’ll have audio.
Check Your Firewall and Antivirus
Security software sometimes blocks audio features in Teams.
- Temporarily disable your antivirus and try Teams
- If audio works with antivirus off, add Teams to your antivirus whitelist
- For Windows Firewall, open Settings > Privacy & Security > Firewall
- Click “Allow an app through firewall”
- Find Teams and make sure both “Private” and “Public” are checked
Most antivirus programs have instructions for whitelisting apps. Consult your antivirus manual if you’re unsure.
Use the Microsoft Teams Troubleshooter
Microsoft built a diagnostic tool for exactly this problem.
- Search “Run” in your start menu
- Type: msdt.exe -id AudioPlaybackDiagnostic
- Press Enter
- Follow the prompts
- Let the tool test your audio and recommend fixes
This tool checks settings you might have missed. It’s free and built into Windows.
Common Audio Problems and Solutions
| Problem | Most Likely Cause | First Solution | If That Fails |
|---|---|---|---|
| Can’t hear others | Wrong speaker selected | Check Teams audio device settings | Restart Teams |
| Others can’t hear you | Microphone not selected | Check Teams microphone settings | Test microphone outside Teams |
| Audio cuts in and out | Unstable internet or CPU overload | Close other programs | Restart computer |
| No audio input recognized | Driver is outdated | Update audio driver | Reinstall driver |
| Audio worked then stopped | Microphone blocked by Windows | Check Windows privacy settings | Restart computer |
| Audio works in other apps but not Teams | Teams permission issue | Check Teams-specific permissions | Reinstall Teams |
Summary
Most Teams audio problems are simple permission or setting issues that take under five minutes to fix. Start by checking whether Teams has microphone permission. Then verify the right audio device is selected in Teams settings. After that, restart Teams and your computer. If audio still doesn’t work, update your audio drivers. Only 5% of audio problems require more complex solutions like reinstalling Teams.
The fastest approach is process of elimination. Check permissions first because they fix 50% of problems. Then test your microphone outside Teams. Then check device settings. Then update drivers. Each step either solves the problem or tells you where to look next.
If you’re still having problems after these steps, your microphone or speaker hardware is likely broken. Try a different device. If the other device works in Teams, your original device needs replacing. If the other device also doesn’t work in Teams, the problem is definitely with your Teams settings or computer audio configuration.
Remember: Teams audio problems almost never need professional help. They’re just settings that need adjusting. Take each step methodically and document what works. This helps you remember what to do if the problem happens again.
FAQs
Why did my Teams audio stop working after a Windows update?
Windows updates sometimes reset your audio permissions or update your audio drivers in ways that break Teams. Check your privacy settings for microphone permissions, and update your audio drivers through Device Manager.
Can I use Teams audio without a microphone?
No, Teams requires either a microphone or the ability to select an audio input device. You can hear others without a speaker, but you can’t join a call without an input device.
Does disabling background noise suppression fix audio problems?
Sometimes. Teams’ noise suppression occasionally breaks audio for certain microphones. Try disabling it if your voice sounds muted or if there’s no audio output at all.
Why is Teams audio only working in one ear of my headphones?
This usually means your headphones are plugged into a mono input or your audio balance is set to one side. Check your audio settings and adjust the balance slider so audio plays in both ears.
How do I test my audio before joining a Teams meeting?
Go to Teams Settings > Devices > Audio Devices and click “Make a test call.” Teams will record your voice and play it back so you can hear if your microphone and speakers are working.
