Both return audio from a television to compatible sound equipment over an HDMI connection. eARC provides a more capable audio return path, but the actual formats available still depend on the television, soundbar or receiver, source and settings. The correct labelled ports must be used.
Connect the intended sockets
Locate the ARC or eARC markings and consult both devices’ manuals. Connecting ordinary HDMI inputs at both ends may not create the return path you expect. Televisions can also require a documented audio-output selection or control setting, so a cable alone is not the complete configuration.
Distinguish return audio from source audio
A player connected directly to a receiver can send sound along a different route from a built-in television app. If one works and the other does not, compare those routes rather than assuming the programme has no audio. Write down which device is actually receiving and decoding the signal.
Use a supported fallback
If a particular encoded format fails, compare with a documented PCM or stereo output. Record what works before changing more settings. eARC capability does not guarantee every app passes every format unchanged, and a premium cable cannot add a decoder missing from the soundbar. Verify the exact model specifications before buying replacement equipment.