HDMI, ARC, and Why the Sound Comes Out of the Wrong Speaker
Last verified: August 2026
If your fancy soundbar sits silent while the TV's tinny speakers play, you're not alone — it's almost always one setting. Here's HDMI and ARC explained simply, and the fix.
About HDMI and ARC
HDMI is the single cable that carries picture and sound between your TV and your devices. ARC — ‘Audio Return Channel' — is a clever feature that lets the same HDMI cable send sound backward from the TV to a soundbar or receiver. That means one cable to the TV handles everything, including sound from the TV's own apps.
The keys are simple: use the specific HDMI port labeled ‘ARC' (or ‘eARC') on both the TV and the soundbar/receiver, and turn on the TV's HDMI-CEC feature (manufacturers give it cutesy names like Anynet+, Bravia Sync, or SimpLink). eARC is the newer, better version that carries higher-quality, immersive audio like Dolby Atmos — use it if both devices have it.
When sound comes out of the wrong speaker, it's nearly always because the TV's audio output is still set to its built-in speakers, or the cable is in a non-ARC port. Both are quick fixes once you know where to look.
When to skip the DIY and just call: Getting TV sound to your soundbar or receiver · Fixing the ‘wrong speaker' and lip-sync problems · Turning on ARC/eARC and CEC the right way.
Common Questions
1 Why does sound come from the TV, not my soundbar?
- Check the TV's audio output setting — set it to the external soundbar/receiver, not ‘TV Speakers.'
- Confirm the HDMI cable is in the port labeled ‘ARC' or ‘eARC' on both devices.
- Turn on HDMI-CEC on the TV (it may be called Anynet+, Bravia Sync, SimpLink, etc.).
- Restart both devices after changing settings.
2 What's the difference between ARC and eARC?
- ARC sends sound from the TV to your speaker over HDMI — great for everyday use.
- eARC is the newer version with much more bandwidth for the best, uncompressed audio (like Dolby Atmos).
- Use eARC only if both your TV and soundbar/receiver support it; otherwise ARC is fine.
- For eARC, use a ‘high-speed' or ‘ultra high-speed' HDMI cable.
3 How do I connect it all correctly?
- Run one HDMI cable from the TV's ARC/eARC port to the soundbar/receiver's ARC/eARC port.
- Plug your other devices (streaming box, player) into the soundbar/receiver, or into the TV's other HDMI ports.
- Set the TV audio output to the external speaker and enable CEC/ARC.
- Test with the TV's built-in app and with an external device to confirm both play through the speaker.
4 The sound is out of sync with the picture — how do I fix it?
- Look for an ‘Audio Delay' or ‘Lip Sync' setting on the TV or the soundbar and nudge it.
- Small adjustments (a few tens of milliseconds) usually line things up.
- Turning off the TV's heavy picture processing can also help (see our calibration guide).
- Make sure both devices are set to ARC/eARC rather than optical, which can drift.
5 What if my TV or soundbar has no ARC?
- Older gear can use an ‘optical' (TOSLINK) audio cable instead — it works well for stereo and basic surround.
- You won't get the newest immersive formats over optical, but dialogue and sound are still much better than TV speakers.
- Set the TV audio output to ‘Optical/Digital Out.'
- If you're upgrading, choosing ARC/eARC gear keeps things to one simple cable.
Want a Real Person?
Sometimes the fix takes five minutes — and sometimes you'd rather just have someone come fix it. Either way, I'm a call away. Flat $99 first visit, 30-day follow-up included. No surprises.
This guide is yours, free.
No sign-up, no email, no catch — it's free the way it looks free. Print it, save it, or share it with family. And if you'd rather hand the job off, Bill's two choices are right above: a $99 flat in-home visit or $49 remote help, often same day.