The 2023 LG OLED televisions support a variety of sound output formats. To see which one is supported, as well as you can change the formats from the settings of your TV, you can check out this article.
Before we start, it is important to note that this guide will be mainly covering the A3, B3, C3, G3 and Z3 models.
How to output audio to wired speakers
To start off, you need to change the sound output from the television speakers to the connected wired speaker.
In order to do so, you should make sure that your speaker is plugged into the optical or HDMI ARC/eARC port. Afterwards open the Settings menu of your TV and then head over to Sound > Sound Out > Use Wired Speaker. Finally, select Optical Out Device or HDMI(ARC) Device.
How to change digital sound output format
To change the digital sound output format, you need to go to the Settings menu of your TV and then navigate to Sound > Advanced Settings > Digital Sound Output.
Note: If this option can’t be selected, then make sure you enable Optical Out Device/HDMI(ARC) Device from the aforementioned Use Wired Speaker setting.
You will be able to select between PCM, Auto or Pass Through.
Compatible sound output formats
If you select PCM as the Digital Sound Output, then all the input audio types will output as PCM.
If you select Auto or Pass Through, then the sound output formats depend on the supported format of the connected speaker. The Pass Through option for the Digital Sound Output may not work for some formats; therefore, we recommend going with Auto to start off if you want to output a non-PCM format.
Along with PCM, these LG televisions also supports the following input audio types:
- MPEG
- Dolby Digital
- Dolby Digital Plus
- Dolby Atmos
- Dolby TrueHD (only through HDMI connection)
- HE-AAC
- AAC
- DTS
- DTS Express
- DTSHD M
- DTS-HD
- DTS:X
You can find the list of supported output formats, based on which port your speaker is connected to, for the aforementioned input audio types below:
MPEG Input Audio
Optical Port Output Formats:
- PCM
HDMI ARC Port Output Formats:
- PCM
HDMI eARC Port Output Formats:
- PCM
Dolby Digital Input Audio
Optical Port Output Formats:
- Dolby Digital
HDMI ARC Port Output Formats:
- Dolby Digital
HDMI eARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby MAT
Dolby Digital Plus Input Audio
Optical Port Output Formats:
- Dolby Digital
HDMI ARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby Atmos
HDMI eARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby MAT
- Dolby Atmos
Dolby Atmos Input Audio
Optical Port Output Formats:
- Dolby Digital
HDMI ARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby Atmos
HDMI eARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby MAT
- Dolby Atmos
Dolby TrueHD Input Audio (through HDMI only)
Optical Port Output Formats:
- Dolby Digital
HDMI ARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby Atmos
HDMI eARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby TrueHD
- Dolby MAT
- Dolby Atmos
HE-AAC Input Audio
Optical Port Output Formats:
- Dolby Digital
HDMI ARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
HDMI eARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby MAT
AAC Input Audio
Optical Port Output Formats:
- Dolby Digital
HDMI ARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
HDMI eARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby MAT
DTS Input Audio
Optical Port Output Formats:
- Dolby Digital
HDMI ARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
HDMI eARC Port Output Formats:
- Dolby Digital
- Dolby Digital Plus
- Dolby MAT
DTS Input Audio
Optical Port Output Formats:
- DTS
HDMI ARC Port Output Formats:
- DTS
HDMI eARC Port Output Formats:
- DTS
- DTS-HD MA
DTS Express Input Audio
Optical Port Output Formats:
- DTS
HDMI ARC Port Output Formats:
- DTS
HDMI eARC Port Output Formats:
- DTS
- DTS-HD MA
DTSHD MA Input Audio
Optical Port Output Formats:
- DTS
HDMI ARC Port Output Formats:
- DTS
HDMI eARC Port Output Formats:
- DTS
- DTS-HD MA
DTS-HD Input Audio
Optical Port Output Formats:
- DTS
HDMI ARC Port Output Formats:
- DTS
HDMI eARC Port Output Formats:
- DTS
- DTS-HD
- DTS-HD MA
DTS:X Audio
Optical Port Output Formats:
- DTS
HDMI ARC Port Output Formats:
- DTS
HDMI eARC Port Output Formats:
- DTS
- DTS-HD
- DTS-HD MA