efficient 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 DVBSPDIF Selection(Auto / PCM)Selects the initial setting for digital audio output signal from DIGITAL AUDIOand HDMI2 (ARC function) terminals.● SPDIF is a standard audio transfer file format.Auto:Dolby Digital Plus, Dolby Digital and HE-AAC multi-channel are outputas Dolby Digital Bitstream. MPEG is output as PCM.PCM:Digital output signal is fixed to PCM.● ARC (Audio Return Channel) is a function of digital audio output usingHDMI cable.● For DVB, video contentMedia Player > Video mode > Audio output settingsNetwork > Videos > Audio output settingsPCM Optical LevelAdjusts the audio level of PCM output from DIGITAL AUDIO and HDMI2 (ARCfunction) terminals to equalise with that of the other audio types.SPDIF DelayAdjusts the delay time of the sound output from DIGITAL AUDIO and HDMI2(ARC function) terminals if the sound does not synchronise the image.● For DVB- 97 -