TVs

No sound to soundbar through HDMI-ARC

HDMI-ARC audio failures are almost always a setting, port, or cable issue rather than a broken TV or soundbar. Confirming the ARC-labeled port is used is the key first step.

Difficulty
Easy
Time
10–20 minutes
DIY cost
$0–$15
Pro cost
$60–$120

Symptoms

  • Soundbar shows no input signal from the TV
  • TV's speakers work but the soundbar stays silent
  • Sound worked before but stopped after a firmware update
  • Soundbar cuts in and out intermittently

Likely causes

  • CommonHDMI cable plugged into a non-ARC portOnly one HDMI port on most TVs supports ARC, usually labeled 'HDMI (ARC)' or 'HDMI 2/3 ARC'; using another port won't carry audio back to the soundbar.
  • CommonCEC/ARC setting turned off in the TV's audio settingsTVs typically need an ARC or CEC-related setting enabled for the feature to function.
  • CommonTV audio output setting not set to send sound out via HDMIIf the output is set to 'TV speaker' only, no audio will route to the soundbar even over an ARC connection.
  • PossibleFaulty or non-compliant HDMI cableSome older or low-quality HDMI cables don't reliably support ARC's audio return functionality.

What to do

  1. Confirm the HDMI cable from the soundbar is plugged into the TV port specifically labeled ARC (or eARC).
  2. In the TV's sound settings, set the audio output to 'HDMI ARC' or 'external speaker.'
  3. Enable HDMI-CEC (sometimes called Anynet+, Bravia Sync, SimpLink, or similar) if it's turned off.
  4. Power cycle both the TV and soundbar, starting with the soundbar, then the TV.
  5. Try a different HDMI cable, ideally one labeled 'High Speed' or 'Premium High Speed.'
  6. Update firmware on both the TV and soundbar if updates are available.
  7. As a fallback, connect via an optical audio cable instead of HDMI-ARC if the soundbar has that option.

Tools and parts

HDMI cable (High Speed/ARC compatible)Search: “high speed HDMI cable ARC compatible”

When to call a pro

This is a settings and cable issue nearly every time; a technician is rarely needed unless the ARC port itself is confirmed faulty on both devices.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.