The HDMI cables still took audio from the game consoles, Blu-ray players and set boxes on the TV. When attaching your new AV receiver or soundbar, two options, such as HDMI or digital optical audio, are possible.
When you watch television with friends, speakers on your TV let everybody know what is happening on tv. You do not have to share the audio with anyone around you when you watch the TV on your own. Indeed, if you are just watching TV late in the night, you probably would not be bothering your significant others, roommates, children or neighbours.