Fix Teams Echoes During a Meeting on Windows 11

When you hear your own voice bouncing back during a Teams call, the meeting becomes unusable. The echo usually comes from a speaker feeding sound into a microphone, creating a feedback loop. This guide explains the technical causes and gives you step-by-step fixes to eliminate echo on Windows 11. You will learn to identify the device at fault and apply the correct setting in Teams and Windows.

Echo occurs when audio from your speakers is picked up by your microphone and sent back to the remote participant. Teams has built-in echo cancellation, but it can fail when you use multiple audio devices or when a device driver is outdated. The fixes below range from simple mute checks to driver updates and Teams settings changes.

Why Teams Echo Happens on Windows 11

Echo in Teams is a classic audio feedback loop. Your microphone picks up the sound coming from your speakers, and that sound is transmitted back to the remote caller. Teams has an acoustic echo cancellation algorithm that is supposed to remove this, but it only works when the audio devices are configured correctly.

The most common cause is using the built-in laptop speaker and microphone at the same time. The speaker projects sound into the room, the microphone captures it, and the feedback loop starts. Another cause is having multiple audio devices connected, such as a USB headset and a webcam microphone, and Teams selecting the wrong one.

Outdated or corrupted audio drivers can also disable hardware echo cancellation. Windows 11 may use a generic driver that does not support the advanced features of your sound card. Finally, a participant on the call may have their own echo problem, but the first step is always to rule out your own devices.

Steps to Diagnose and Fix Echo in Teams on Windows 11

Follow these steps in order. Start with the quickest checks and move to deeper fixes only if the echo persists.

Step 1: Mute Your Microphone to Confirm the Source

1. Mute your microphone in the meeting
   Click the microphone icon in the Teams meeting controls. If the echo stops, the problem is your microphone picking up your speaker output. If the echo continues, the source is on the remote participant’s side.
2. Ask the other participant to mute
   If muting yourself does not stop the echo, ask the other person to mute. This isolates the faulty side.

Step 2: Change the Speaker and Microphone in Teams Settings

1. Open Teams Settings
   Click your profile picture at the top right of Teams, then select Settings.
2. Go to Devices
   In the Settings menu, click Devices. You will see dropdown menus for Speaker, Microphone, and Camera.
3. Select a headset or external speaker
   Change the Speaker dropdown to your headset or a USB speaker. Avoid using the laptop’s built-in speaker. For the Microphone, choose a dedicated mic or headset mic, not the webcam mic.
4. Test the audio
   Click Make a test call. Teams will play a recording and ask you to speak. If you hear yourself echoed during the test, the device selection is wrong.

Step 3: Reduce Speaker Volume in Windows 11

1. Open Windows Sound settings
   Press the Windows key and type Sound, then press Enter. Alternatively, go to Settings > System > Sound.
2. Open the Volume Mixer
   Scroll down and click Volume mixer. You will see a list of apps that are currently producing sound.
3. Lower the Teams volume
   Find Microsoft Teams in the list and drag its slider down to 50% or lower. This reduces the speaker output that can leak into the microphone.

Step 4: Update or Reinstall the Audio Driver

1. Open Device Manager
   Right-click the Start button and select Device Manager.
2. Expand Audio inputs and outputs
   Click the arrow next to Audio inputs and outputs to see your microphone and speaker devices.
3. Update the microphone driver
   Right-click your microphone device and select Update driver. Choose Search automatically for drivers. If Windows finds an update, install it.
4. Update the speaker driver
   Repeat the same process for your speaker device.
5. Reinstall the driver if updates do not help
   Right-click the device and select Uninstall device. Restart your PC. Windows will reinstall the driver automatically.

Step 5: Disable Audio Enhancements in Windows 11

1. Open Sound settings
   Go to Settings > System > Sound.
2. Select your speaker device
   Under Output, click the name of your speaker, such as Speakers or Headphones.
3. Turn off Audio enhancements
   Scroll down to the Audio enhancements section and set it to Off. These enhancements can interfere with Teams echo cancellation.

Step 6: Use Teams Noise Suppression

1. Open Teams Settings
   Click your profile picture and select Settings.
2. Go to Devices
   Click Devices and scroll to the Noise suppression section.
3. Select High or Auto
   Choose High to apply the strongest suppression. This does not remove echo completely, but it reduces background noise that can worsen the feedback loop.

If Teams Still Echoes After the Main Fix

Sometimes the echo persists even after you follow the steps above. Here are additional scenarios and their fixes.

Teams Echoes on a Laptop with Built-in Speakers and Microphone

If you must use the built-in devices, lower the speaker volume to 30% and keep the microphone at least 12 inches away. You can also enable the Mute speaker when microphone is active option in Windows sound settings. Go to Settings > System > Sound > More sound settings, then select the Recording tab. Right-click your microphone and choose Properties. On the Listen tab, ensure Listen to this device is unchecked.

Echo Comes Only from a Specific Participant

If the echo only happens when a certain person speaks, the problem is on their side. Ask them to mute when not talking, use a headset, or lower their speaker volume. You can also ask them to update their audio driver.

Teams Echoes in a Meeting Room with Multiple Devices

In a conference room, multiple microphones and speakers can create complex feedback. Use a single speakerphone device instead of separate components. Make sure the speaker is not placed directly in front of the microphone. Also, enable the Teams meeting room device’s built-in echo cancellation.

New Teams Desktop vs Teams on the Web: Echo Handling Differences

Item	New Teams Desktop (Windows 11)	Teams on the Web
Echo cancellation	Uses Windows audio stack and hardware drivers	Relies on browser audio processing
Device selection	Full control in Teams Settings > Devices	Limited to browser permissions
Noise suppression	High, Medium, Auto options	Only Auto or Off in some browsers
Driver updates	Can update directly in Device Manager	Cannot access Windows drivers
Best for echo fixes	Recommended for complete troubleshooting	Good for quick checks but less control

You can now identify the device causing the echo and apply the correct fix. Start by muting your mic to confirm the source, then change the speaker and microphone in Teams settings. If the echo continues, update your audio driver and disable audio enhancements in Windows 11. For persistent echo, use the noise suppression feature and check the remote participant’s setup. As an advanced tip, use the Teams test call feature to verify your audio setup before joining any important meeting.