Getting Echo During Microsoft Teams Meetings? Here’s How to Fix It

To fix echo during Microsoft Teams meetings, start by using a headset and keeping only one microphone-and-speaker system active in each room. Then check which speaker and microphone Teams is actually using. If you hear your own voice coming back, ask other participants to check their setups too: the sound may be returning through someone else's microphone.

An echo is a delayed repetition of speech. It can happen when a microphone picks up meeting audio from nearby speakers, or when multiple devices join with audio enabled. Hardware placement and audio routing matter; this is not necessarily an internet connection problem.

1. Find the source and remove duplicate audio connections

Before changing settings on every computer, narrow down where the repeated sound enters the meeting:

1. Have one person speak while everyone else mutes their microphones.
2. Unmute the other microphones one at a time while that person continues speaking.
3. If the echo returns, check the most recently unmuted participant's speakers, microphone, and additional meeting devices.

This identifies a likely audio path, rather than proving that a microphone is defective. Ask whether anyone joined from a laptop and phone, dialed in separately, or opened the meeting in both the desktop app and a browser.

Leave the extra audio connection or disable both its microphone and meeting playback. Muting only the extra microphone can leave its speakers audible to another microphone nearby.

In a conference room, use the room system for sound and join additional devices without audio. Microsoft's guidance for sharing sound in Teams specifically recommends keeping only one device's microphone and speaker on in a room.

2. Use a headset or reduce speaker pickup

At the suspected source, connect headphones or a headset. This keeps meeting playback out of the room and reduces the sound that can reach the microphone. If your colleague's setup is returning your voice, changing only your own headphones may not solve it.

If speakers are necessary, lower their volume and move the microphone farther away from them. Avoid placing a separate microphone directly in front of a loud speaker. Mute when you are not speaking, but treat that as a temporary workaround while you correct the setup.

3. Select the correct Teams speaker and microphone

Plugging in a headset does not guarantee that Teams switched to it. In the desktop app:

1. Select Settings and more (...) > Settings > Devices.
2. Under Audio settings, choose your intended output from Speaker.
3. Choose the intended input from Microphone. For a headset, select its microphone rather than the laptop or webcam microphone.

During a meeting, open the arrow next to Mic and select More audio settings to check the devices without leaving. These controls are documented in Microsoft's Teams audio settings guide; some options depend on organizational policies.

For background sounds, review Noise suppression. If available, Voice isolation can also filter other voices and speaker sound. Follow Microsoft's voice isolation setup instructions for profile requirements. These features supplement a clean audio setup; remove duplicate connections first.

4. Reconnect, test, and check Windows audio processing

If the correct device is missing or sounds wrong, unplug and reconnect it. For Bluetooth equipment, check its charge and connections to other devices. Select Leave, then rejoin the meeting; do not choose an option that ends the meeting for everyone.

In the Teams desktop app, return to Settings > Devices and select Make a test call, if available. Record a short message and listen to the playback. Microsoft's microphone troubleshooting guide notes that the test-call feature is unavailable in Teams for the web. A clear test recording checks your local setup, but does not rule out another participant's audio loop.

On Windows 11, an additional troubleshooting option is Settings > System > Sound. Select your output device and, if shown, set Audio enhancements to Off. Retest and restore the setting if it makes no difference. Microsoft lists this in its Windows audio troubleshooting guide; availability varies by device and driver.

If echo persists, try another headset and a short meeting with one colleague. Tell IT which participant's unmuting brings it back, which devices are selected, and whether the problem occurs in other calling apps. Those details help distinguish a device issue from a room setup or Teams-specific problem.