Fix audio echo on calls

Echo on a call is almost always one person’s mic picking up their own speakers.

1. First test: put on headphones (any headphones). If the echo stops, it was you.
2. If you don’t have headphones: lower your speaker volume, move the speakers further from the mic, or use Teams/Zoom’s built-in noise suppression (Device settings → Noise suppression → High).
3. If you’re on a laptop without a headset, the built-in mic and speakers are close together — echo is much more likely.
4. Ask the other person to test the same thing — sometimes it’s them.
5. Teams meetings have a built-in “Music mode” off by default — turning it on increases echo. Make sure it’s off.