Hearing echo or feedback in Zoom?

Remove duplicate meeting audio first

1. Check for a phone, tablet, second computer, conference-room system, or dial-in line joined to the same meeting nearby.
2. Disconnect audio on every duplicate device; moving it away or muting only one microphone may not stop the returning speaker sound.
3. Keep one device connected and ask another participant whether the echo stops.
4. If the echo follows one remote participant, that participant should perform the same isolation.

Test the local microphone and speaker separately

1. Run the MeterSee microphone test with speakers quiet and note whether the input is clean and stable.
2. Run the left/right speaker or headphone confirmation at a moderate volume.
3. Prefer wired or Bluetooth headphones for the next Zoom test to break the speaker-to-microphone path.
4. Do not treat an audible local tone as proof that Zoom selected the same output.

Match devices inside Zoom

1. Open Zoom Settings → Audio.
2. Choose the exact microphone and speaker you tested instead of relying on Same as System.
3. Run Zoom's speaker and microphone tests.
4. Reduce speaker volume and keep the microphone away from the speaker if headphones are unavailable.

Interpret what remains

• Echo disappears with headphones: acoustic feedback or another room device was the likely layer.
• Only one participant hears echo: ask that participant to isolate their local devices.
• MeterSee cannot reproduce Zoom's echo cancellation, meeting mix, or a remote participant's room, so a clean local check does not certify the full call.
• After routing is correct, update Zoom and the operating system; replace hardware only when it fails in independent local tests too.