You can configure the Digital Sound Out settings.
This setting is only available when Sound Sound Out is set to Optical/HDMI
ARC.
When Pass Through is enabled, sound effects may not be output.
The codec output with a device may differ from input signals.
Sound Input Digital Sound Output
PCM All PCM
Auto / Pass Through MPEG PCM
Dolby Digital Dolby Digital
Dolby Digital Plus /
Atmos
(Optical) Dolby Digital
(HDMI ARC) Dolby Digital Plus /
Atmos
Dolby TrueHD
(HDMI only)
(Optical) Dolby Digital
(HDMI ARC) Dolby Digital Plus /
Atmos
(HDMI ARC eARC On) TrueHD
HE-AAC Dolby Digital
1) When connected with eARC, the output audio type will depend on the audio type
supported by the connected device.
Dolby TrueHD , eARC , Dolby Atmos : Some models may not be supported.
Programmes
Automatically Setting Up Programme
Programmes Programme Tuning (Programme Tuning & Settings)
1)