Turning a video to audio conversion- People still get wrong
There is a whole category of listening that does not need a screen. A lecture you want for the commute, a podcast that only went up as a video, a song from a live set that never reached any streaming service, an interview you would rather hear than watch. In each case the audio is the point and the video is just the wrapper, and the sensible move is to lift the sound into a file you can play anywhere.