You should follow the below steps on a live stage to enable interpretation:

1. Click the translation icon (beside the settings gear icon) on the stage to open the interpreter widget.
   
   
   
   
   
   
2. Select the desired language from the available dropdown options.
   
   
   
   
   
   
3. Click Connect.

This enables the interpretation of the incoming audio into the selected language. You must mute the primary audio output to avoid listening to it with the interpreted audio.