Echo often happens when meeting sound is picked up and sent back through a microphone. Start by identifying the audio loop rather than changing every setting at once. A short, systematic check is easier for the group to follow.
1 Check for two nearby audio connections
If a laptop and phone have both joined with speakers and microphones active in the same room, disconnect one audio route. Muting only a microphone may not remove the unwanted speaker output. Keep one intended audio setup for each location.
2 Try a suitable headset
A headset can reduce the amount of speaker sound reaching the microphone. Check that the meeting app is using the headset for both input and output. Do not assume plugging it in changed the selected devices automatically.
3 Check the room and sound level
Lower excessively loud speakers and move the microphone away from them. If several people share a room, use an appropriate conference audio arrangement. Ask participants to test one location at a time to help identify where the return sound starts.
4 Test the selected devices
Use the service’s audio settings and any available test function. Teams’ device options and Zoom’s echo guidance are linked below. Avoid repeatedly changing advanced settings without knowing their purpose. If a managed room system still echoes, ask the administrator to check its configuration.
Official references, checked 16 October 2026: Teams audio settings, Zoom echo guidance.
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