How to Use Menu Functions42Menu Item Adjustments / Configurations (alternatives)SoundMPXSelects multiplex sound mode (if available)[Stereo]: Use this normally.[Mono]: When stereo signal cannot be received.[M1] / [M2]: Available while mono signal is transmitted.● For Analogue TVAudio PreferenceSelects the initial setting for audio tracks [Auto] / [MPEG][Auto]: Automatically selects the audio tracks if programme has more than twotracks. The priority is given in the following order - Dolby Digital Plus,HE-AAC, Dolby Digital, MPEG.[MPEG]: The priority is given to MPEG.● Dolby Digital Plus and Dolby Digital are the methods of coding digital signalsdeveloped by Dolby Laboratories. Apart from stereo (2ch) audio, these signalscan be multi-channel audio.● HE-AAC is a perceptual coding method used to compress digital audio forefficient storage and transmission.● MPEG is an audio compression method that compresses audio to the smallersize without any considerable loss of audio quality.● Dolby Digital Plus and HE-AAC are the technologies for HD (High definition)programmes.● For Digital TVSPDIF SelectionSPDIF: A standard audio transfer file formatSelects the initial setting for digital audio output signal from DIGITAL AUDIO OUTand HDMI2 (ARC function) terminals [Auto] / [PCM][Auto]: Dolby Digital Plus, Dolby Digital and HE-AAC multi-channel are output asDolby Digital Bitstream. MPEG is output as PCM.[PCM]: Digital output signal is fixed to PCM.● For Digital TV or video contents of Media Player / Network services (p. 72, 84)● ARC (Audio Return Channel): A function of digital audio output using HDMIcableHDMI1 / 2 / 3 / 4 InputSelects to fit the input signal [Digital] / [Analogue] (p. 101)[Digital]: When sound is carried via the HDMI cable connection[Analogue]: When sound is not carried via the HDMI-DVI adaptor cableconnection● For HDMI inputReset to Defaults Press the OK button to reset the current Sound Mode, [Balance], [HeadphoneVolume] and [Surround] to the default settings