To open the Audio output menu, press the XXX.GST (Quick Settings) button and select [All settings] > [Display and sound] > [Audio output]. Within this menu, you will find the following options:
[Output Device] – Selects where the sound is output:
[TV Speaker] – Sound is output through the TV speakers.
[SPDIF/Optical] – Switches off the TV speakers and outputs sound through the optical digital audio output. This option is recommended when the TV is connected to a sound system using an optical digital cable, as it can help prevent an echo effect.
[Audio Output Type] – Configures the digital audio output settings.
[PCM] – The audio stream is processed by the TV.
[Passthrough] – The audio stream is passed through to the device connected via the digital audio output, such as a soundbar or AV receiver.
[Auto] – Automatically selects the optimal audio output settings.
[Digital Audio Delay] – Adjusts the audio delay to synchronise picture and sound when using an audio system connected via the digital audio output.
[Digital Audio Volume] – Adjusts the volume of the audio system connected via the digital audio output.
[eARC] – Toggles HDMI eARC between Off and Auto. In Auto mode, the TV transmits audio signals via HDMI to a connected audio device, such as an AV receiver or soundbar. This feature is available only on the HDMI eARC port.