Zoom: Troubleshoot Audio Echo or Feedback in a Meeting

If you are hearing feedback or echoes in your meeting, that means there is a device in the meeting that is channeling your audio back.

There are 3 main causes of audio echo or feedback in a Zoom meeting:

  1. A participant has both the computer and telephone audio active
  2. The speakers on participants' computers or telephones are too close to each other
  3. There are multiple computers with active audio in the same conference room

Case 1: A participant has both the computer and telephone audio active

If you join from a computer and call in from the telephone, please make sure you either: 

  • Enter your participant ID when calling in, or enter #participant ID# when already in the call
  • Or, use the Audio Settings caret to the right of the Mute/Unmute button to manually Leave Computer Audio.
    A screenshot of the in-meeting audio settings Heads Up Display in Zoom, Leave Computer Audio is highlighted

Case 2: Participants with computer or telephones speakers that are too close to each other

If another participant is too close to you, and both of you have speakers on, either hang up one of the telephone connections or select Leave audio conference on one of the computers.

Case 3: Multiple computers with active audio in the same conference room

If you are in a conference room with multiple devices, disconnect your computer audio from the other devices.  Muting your speaker is not enough.

  • On a PC or Mac: Select Audio Options > Leave Computer Audio 
  • On an Android or iPhone: Select Disconnect 

To figure out which attendee is causing the echo:

  1. Choose one way of muting all attendees:
    1. The host can mute the attendees one at a time
    2. The host can mute all of the attendees at once
    3. Attendees can mute themselves
  2. Un-mute one attendee at a time.

More information and detailed troubleshooting steps for audio echo issues in Zoom are available in the Zoom Help Center.