Playing audio through the TV's internal speakers
SoundSound OutInternal TV Speaker Audio is played through the TV's internal speakers
This feature is available in certain countries only.
Playing audio through an external audio device connected to the digital optical port or the HDMI (ARC) port
SoundSound OutAudio Out (Optical/HDMI ARC) TV audio is played through an external audio device connected to the digital optical port or the HDMI (ARC) port. Enable SIMPLINK to play audio through HDMI (ARC) .
If you select Off while SIMPLINK is enabled, the audio output setting is restored to the default setting in order to ensure uninterrupted audio output.
This feature is available in certain countries only.
Configuring digital sound output settings
SoundSound OutAudio Out (Optical/HDMI ARC)Digital Sound Out You can configure the Digital Sound Out settings.
These settings are available only when external audio device (digital optical or HDMI ARC)/TV's internal speakers + external audio device (digital optical) is selected.
| Sound Input | Digital Sound Output | |
| Auto | DRA | PCM |
| MPEG | PCM | |
| Dolby Digital | Dolby Digital | |
| Dolby Digital Plus | Dolby Digital | |
| HE-AAC | Dolby Digital | |
| DTS | DTS / PCM | |
| DTS Express | PCM | |
| DTS-HD MA | PCM / DTS | |
| PCM | All | PCM |
Connecting and using an audio device supporting LG Sound Sync
You can enjoy richer TV audio with greater convenience by connecting an LG audio device carrying the 
logo.
logo. Connecting to the digital optical port
SoundSound OutLG Sound Sync (Optical) Connect your LG audio device to the digital optical audio output port.
Only available for models with digital optical ports.
You can use the TV remote control to adjust the volume of the connected device.
This feature is available in certain countries only.
Using external audio devices (audio output)/headphones
SoundSound OutAudio Out (Line Out) / Headphones Select Headphones or Audio Out (Line Out) to optimise audio output according to the device connected.
Some models may support the Headphones function only.
If you connect the headphones while the TV is powered on, it automatically detects the headphones and redirects audio through them.
This function is available on certain models or in certain countries only.
Playing audio through the TV's internal speakers and external audio device simultaneously
Audio can be played through the multiple devices simultaneously.
This feature is available in certain countries only.
Using Internal TV Speaker + Headphones
SoundSound OutInternal TV Speaker + Headphones Audio is played through the TV's internal speakers and the Headphones simultaneously.
If you connect the headphones while the TV is powered on, it automatically detects the headphones and redirects audio through them.
This function is available on certain models or in certain countries only.
You can adjust the volume of the headphones using the remote.
Using Internal TV Speaker + Audio Out
SoundSound OutInternal TV Speaker + Audio Out (Optical) Audio is played through the TV's built-in speakers and the audio device connected to the digital optical audio output port simultaneously.