To access the Audio output menu, press the XXX.GST (quick settings) button and navigate to [Settings] > [Display & Sound] > [Audio Output]. Within this menu, you'll find the following options:
[Digital Output] – Configure settings for the digital audio output.
[Auto] – Automatically selects the optimal settings.
[Bypass] – The audio stream will be processed by the device connected via the digital output (soundbar, AV receiver, etc.).
[PCM] – The audio stream will be processed by the TV.
[Dolby Audio-Dolby Digital Plus] – Sends Dolby Digital Plus compressed audio to an external audio device. Requires an HDMI connection to the external audio device.
[Dolby Audio-Dolby Digital] – Sends Dolby Digital compressed audio to an external audio device. Recommended when using an optical audio cable.
[Digital Output Delay] – Adjusts the audio delay to synchronize picture and sound for external speakers connected via a digital audio output.