ARC and eARC return television audio to a compatible audio system through designated HDMI ports. eARC adds capability, but both ends must support it. A TV with eARC connected to an ARC-only soundbar remains limited by that soundbar’s supported route.
Draw the physical route in words
Write the source and every hop. For a built-in television player, the route may be TV player → television audio output → soundbar. For an external streamer connected through a receiver, the route may be streamer → receiver → television. For an external streamer connected directly to the TV, audio may then return from TV to the soundbar. These three routes need different manual checks.
The arrows above describe the signal path, not a hardware recommendation. Identify actual model numbers and designated ports on both ends. Use each manufacturer’s compatible cable and connection guidance. A normal HDMI input and the port marked ARC/eARC can have different roles; moving a cable without recording its original position makes the comparison harder to interpret.
Keep the formats attached to the route
Sony’s eARC guidance describes high-bitrate audio support and the need for compatible connected equipment. It also notes that an ARC-only audio system limits a mixed connection. This does not guarantee that a particular TV passes every format from every input or app. Check the model’s supported-format table for the chosen route.
| Arrangement | Check first | Do not infer |
|---|---|---|
| Built-in TV app to soundbar | TV output and both ARC/eARC ports. | That a direct-HDMI streamer result applies. |
| Streamer through receiver | Receiver input decoding and video passthrough. | That the TV is decoding the source audio. |
| Streamer to TV, then audio return | TV handling plus return-link capability. | That every original format survives unchanged. |
Compare a route, not an entire system
Start with the same authorised item and selected audio track. Verify ordinary television-speaker output first if it is available without changing the source. Then compare the documented audio-system route. Note whether all sound disappears, dialogue is missing or the receiver reports a different format. Each observation points to a different follow-up.
A stereo comparison can help identify whether a multichannel route is involved when the platform supports it, but it does not prove the source has a correct surround mix. Do not adjust volume to an extreme level merely to recover missing dialogue; restore a normal safe listening level and investigate the selected track and output configuration.
Identify the next responsible check
If the TV speakers work and the soundbar does not, send the audio-system support team the connection route and detected format. If only one item is silent on every route, send the provider that item and track information. No eARC, receiver or service playback was tested here. A format badge or speaker count does not establish which audio track a particular account receives.