Preferred audio type(Main Audio/Hearing Impaired/Visually Impaired)Allows setting of the accessible audio format when it's broadcast and thelanguage setting matches.Digital audio out selection(Auto/PCM)Selects the initial setting for digital audio output signal from DIGITAL AUDIOOUT and HDMI 2 (ARC function) terminals.Auto: Dolby Digital Plus, Dolby Digital and HE-AAC multi-channel are outputas Dolby Digital Bit stream. MPEG is output as PCM.PCM: Digital output signal is fixed to PCM.• For video contents of Media Player / Network services." ARC (Audio Return Channel): A function of digital audio output using HDMIcable.HDMI input (HDMIx in)(Digital/Analog)The default setting is Digital for the HDMI connection. (Digital input signal)Select audio input terminal when a DVI cable is connected along with ananalog audio input signal.Reset to defaultsResets all Audio adjustments to factory default settings.44 (0600303)