When you join a Teams meeting using Microsoft Edge, you may hear your own voice echo back, or participants report a loud ringing feedback loop. This usually happens because Edge has a built-in automatic gain control feature that conflicts with Teams’ own audio processing. The echo can make meetings unusable and frustrate everyone on the call. This article explains why the echo occurs and provides step-by-step fixes in Edge and Teams.
Key Takeaways: Fixing Echo in Teams Meetings on Microsoft Edge
- Edge Settings > System and performance > Use hardware acceleration when available: Turning this off can stop audio processing conflicts that cause echo.
- Teams Settings > Devices > Noise suppression: Set to High or Auto to filter out echo and background noise.
- Edge Flags > WebRTC echo cancellation: Disabling the flag forces a fresh audio pipeline that often removes echo.
Why Teams Echoes in Microsoft Edge
The echo in Teams during Edge meetings occurs because of a conflict between two audio processing systems. Teams applies its own echo cancellation and noise suppression. Edge also applies WebRTC audio processing, including automatic gain control and echo cancellation. When both run simultaneously, they can cancel each other out or create a feedback loop.
Another common cause is hardware acceleration in Edge. Hardware acceleration offloads graphics and audio tasks to your GPU. In some cases, this interferes with the audio drivers, causing the microphone to pick up speaker output and create an echo. The problem is more frequent on laptops with built-in speakers and microphones placed close together.
Finally, Teams’ noise suppression setting might be set to Off or Auto. Auto mode sometimes fails to detect the echo source. When that happens, the echo passes through to participants.
Steps to Disable Edge Hardware Acceleration and Reset Audio Flags
Use these steps to fix the echo by adjusting Edge’s audio and graphics settings.
- Open Edge Settings
In Edge, click the three-dot menu at the top right. Select Settings from the dropdown menu. - Navigate to System and performance
In the left sidebar, click System and performance. Find the section labeled System. - Turn off hardware acceleration
Locate the toggle labeled Use hardware acceleration when available. Turn it off. Click Restart to apply the change. Edge will reopen, and you can join the Teams meeting again. - Open Edge Flags
In the address bar, type edge://flags and press Enter. This opens the experimental features page. - Disable WebRTC echo cancellation
In the search box at the top, type echo. Find the flag named WebRTC echo cancellation. Click the dropdown next to it and select Disabled. Click Relaunch at the bottom right to restart Edge.
Steps to Adjust Teams Audio Devices and Noise Suppression
The next set of fixes happens inside Teams. These settings control how Teams processes audio.
- Open Teams Settings
In Teams, click your profile picture at the top right. Select Settings from the menu. - Go to Devices
In the Settings window, click Devices in the left sidebar. - Set noise suppression
Find the dropdown labeled Noise suppression. Change it from Auto to High. High mode aggressively filters out echo and background noise. - Check microphone and speaker selection
Look at the Microphone and Speaker dropdowns. Make sure they point to the correct devices. If you have multiple audio devices, wrong selection can cause echo. Test by speaking and watching the microphone level meter. - Run a test call
Scroll to the bottom of the Devices page and click Make a test call. This plays a recording and asks you to record a message. If you hear echo during the test, the problem is still present. Repeat the steps above or try the additional fixes below.
If Teams Still Echoes in Edge After the Main Fixes
Teams Echoes Only When Sharing a Screen
Screen sharing can trigger echo if the shared window includes audio. In Teams, when you share a screen, look for the toggle labeled Include system audio in the sharing controls. Turn it off. This prevents the system audio from looping back into the microphone.
Echo Persists in a Specific Meeting Room
If the echo only happens in one meeting room, the issue is likely the physical setup. External speakers and microphones placed too close together cause feedback. Move the microphone away from the speakers, or use a headset to eliminate echo completely.
Edge Updates After the Fix Reintroduce the Echo
Edge updates can reset flags and settings. After an update, check that hardware acceleration is still off and the WebRTC flag is still Disabled. If the flag was reset, repeat the flag steps. If the echo returns, consider using the Teams desktop app instead of the browser version.
Teams Desktop App vs Teams in Edge: Key Differences
| Item | Teams Desktop App | Teams in Microsoft Edge |
|---|---|---|
| Audio processing | Uses Teams’ built-in echo cancellation exclusively | Uses Edge WebRTC processing plus Teams processing, which can conflict |
| Hardware acceleration | Controlled by Teams settings and system | Controlled by Edge settings, which can affect audio |
| Noise suppression | Available with High, Medium, Auto, and Off | Available but may be overridden by Edge flags |
| Echo risk | Lower due to single processing path | Higher due to dual processing and flag conflicts |
| Best for | Critical meetings where audio quality is essential | Quick access without installing an app |
By turning off Edge hardware acceleration, disabling the WebRTC echo cancellation flag, and setting Teams noise suppression to High, you can eliminate most echo issues. Start with the Edge settings, then adjust Teams devices, and finally test with a test call. If the echo continues, switch to the Teams desktop app for a more stable audio experience. For persistent room-based echo, use a headset or reposition your microphone and speakers.