Choose LG webOS Sound Out for an HDMI ARC soundbar

Connect the return-audio ports

Inspect the labels on the LG TV and soundbar. Use the television’s ARC or eARC HDMI port and the soundbar’s matching TV connector, then select the soundbar’s TV audio input. Use the TV’s Sound Out controls to choose HDMI ARC where offered. Older webOS menu names differ, so follow LG’s connection guide for the model before looking for a setting by name.

Verify the television’s own app first

Play a short stereo item in a built-in LG app and check whether sound reaches the bar. If you hear it, move to the external streamer or other HDMI source. If the built-in app is silent too, return Sound Out temporarily to the TV speakers and verify the app produces audio there. That result gives you a practical way to isolate the soundbar input, cable and return-audio connection.