WebEx: Troubleshoot Echoing in the Audio Conference
It is not uncommon to have issues with audio feedback and echoing when using WebEx for online meetings. Echoing is usually caused by a participant in the meeting using speakers or a conference table speakerphone to listen to the audio instead of headphones. That participant’s microphone may then pick up the audio and rebroadcast it, with a delay.
Troubleshooting Echoing in the Audio Conference
Choose Participant > Mute All from the menubar to silence all the participants in the audio conference.
Unmute the people who were speaking first, then continue to unmute participants until the issue reoccurs.
If you’ve isolated an individual attendee as the cause of the echo, ask the attendee to manually mute or discontinue using their speaker, or just leave the attendee muted in the audio conference. Note: You may instead be able to detect which participant is echoing by checking the Participants panel. Any microphone which is currently broadcasting to the rest of the meeting will show animated “sound waves” to the left of their name. If this animation shows up next to any single participant who is not currently speaking, they are likely the one causing the echo.
To prevent any chance of causing echos in WebEx Meeting Center, use a headset or headphones to listen to the audio portion of the meeting.