There are four scenarios in which an echo may occur: 

Scenario 1: You are on-screen with a guest, and you hear an echo of your audio or your guest's audio. 

This is typically caused by the speakers on someone's computer feeding back into the mic. Some computers are better at handling echo cancellation than others, but the best way to prevent this is to have all guests on-screen wear headphones.

If for some reason you're still not able to stop the echo, you can also click on the mic on your guest's video feed to mute them when they are not talking.

Scenario 2: You're hearing a loud feedback sound.

This is caused by someone on stage having the event open in more than one browser tab or window. Check to see if you've opened the Crowdcast event multiple times by accident, and close all other Crowdcast pages. As the host, you can identify who has caused the echo by muting everyone and then un-muting everyone one at a time.

Scenario 3: An admin has toggled on the Studio Sound

Normally we handle audio processing so things like echo cancellation, automatic gain control, and noise suppression are taken care of for you. When Studio Sound is turned on, this processing is turned off and may cause echoing unless all participants are wearing headphones.

White means it's OFF

Studio Sound microphone icon in white means it's turned off

Green means it's ON

Studio Sound microphone icon in green means it's turned on

Scenario 4: The host or someone else on-screen has a connectivity issue

When someone has a poor internet connection or an overloaded CPU, it can have an effect on their audio quality. If they suffer a drop in their audio bitrate, this can lead to an echo.


Have questions or suggestions? Email us at [email protected]. Happy Crowdcasting! 🎥

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