YouTube voice sound unfamiliar? Check whether you're hearing an AI dub.

You open a video from someone you like listening to, but the voice sounds unfamiliar. Before deciding they've changed how they record, check the audio track. YouTube's existing help says automatically dubbed videos are marked ‘auto-dubbed’ in the description. For a video with multiple audio tracks, open Settings in the player → Audio track and choose the original language. In the Android app, you can also go to your profile picture → Settings → Languages → Preferred languages. YouTube says videos whose original audio is in one of those preferred languages will default to that original audio. That is a language preference, not a universal switch that disables every dub. A translated voice can make a video you couldn't otherwise follow worth watching. It can also get between you and a speaker whose pauses or delivery you came for. I'd want ‘You're hearing an automatic dub’ beside the player controls, with a direct way back to the original, rather than make someone open the description to understand why the person sounds different. That is a design preference; the paths above come from YouTube's documentation, not a hands-on test or a new launch.