Active speaker mode is a feature of the prebuilt UI that highlights the participant who is talking. It helps preserve bandwidth to improve video call quality.

  • To turn it on or off from the prebuilt UI, click on More, in the lower right of your in-call menu. Then select Active Speaker mode.

  • To turn it on or off programmatically, read about setActiveSpeakerMode() in Daily's reference docs.

Note that active speaker mode only exists for calls that use the built-in UI. If you’ve provided custom CSS (through a factory method, join(), or loadCss()) or are using a Call Object (created with DailyIframe.createCallObject()), this method will have no effect. However, you can listen to active-speaker-change events to build your own active speaker mode in a custom UI.

Learn more about active speaker mode on our blog.

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