- 180 -Advanced settingsMPXSelects multiplex sound mode (if available).Stereo:Use this normally.Mono:When stereo signal cannot be receivedM1 / M2:Available while mono signal is transmitted.● For Analogue modeAudio Preference(Auto / Multichannel / Stereo / MPEG)● Selectable options vary depending on the country you select.Selects the initial setting for audio tracks.Auto:Automatically selects the audio tracks if a programme has more thantwo tracks. The priority is given in the following order - Dolby DigitalPlus, HE-AAC, Dolby Digital, MPEG.Multichannel:The priority is given to multi-channel audio track.Stereo:The priority is given to stereo (2ch) audio track.MPEG:The priority is given to MPEG.● Dolby Digital Plus and Dolby Digital are the methods of coding digitalsignals developed by Dolby Laboratories. Apart from stereo (2ch) audio,these signals can 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 thesmaller size without any considerable loss of audio quality.● Dolby Digital Plus and HE-AAC are the technologies for HD (Highdefinition) programmes.● For DVB mode