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LG webOS · Display & Sound

Route audio to the TV speakers, a soundbar, or Bluetooth

Sound Out controls where the TV sends its audio — built-in speakers, an optical or HDMI-ARC soundbar, or a paired Bluetooth speaker or headphones.

What you should know

  • Go to Settings (gear icon) > All Settings > Sound > Sound Out and choose TV Speaker, Optical, Audio Out (Line Out), HDMI ARC, or Bluetooth.
  • For a soundbar or AV receiver connected to the HDMI ARC/eARC port, select TV Speaker (LG Sound Sync) or HDMI ARC to enable one-remote volume control.
  • To connect wireless headphones or a Bluetooth speaker, choose Bluetooth, then Add New Device and select it from the scan list.
  • Enable SIMPLINK under Settings > General > Devices so the TV remote can control volume and power on a connected LG soundbar automatically.

Bluetooth audio can add a noticeable delay (audio/video sync lag), which is more apparent on live sports or fast-paced games than on movies.

Why it matters

Getting Sound Out wrong is one of the most common reasons a connected soundbar appears to "not work" — the TV is often still routing audio to its own speakers instead of the external device.

Best practices

  • Use HDMI ARC/eARC over optical when available — it supports higher-quality formats like Dolby Atmos passthrough.
  • Turn on SIMPLINK/HDMI-CEC for LG soundbars so one remote controls both volume and power.
  • Re-scan for Bluetooth devices if a previously paired speaker doesn't reconnect automatically after a TV update.

Common problems and fixes

No sound from a connected soundbar
Confirm Sound Out is set to HDMI ARC or Optical (matching the physical cable used) rather than TV Speaker.
Audio is out of sync with video over Bluetooth
Switch to a wired HDMI ARC or optical connection for latency-sensitive content — Bluetooth audio delay isn't fully adjustable on most models.

Tips and tricks

  • The AV Sync option under Sound > Advanced Settings can shift audio timing by small increments if a wired soundbar still sounds slightly out of sync.

Frequently asked questions

Can I send audio to two devices at once, like a soundbar and headphones?

No — webOS supports one active Sound Out destination at a time, though some models allow simultaneous TV speaker and Bluetooth output.

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