Panasonic TX-L37U3E, TX-L42U3E Surround, Auto Gain Control, Volume Correction, Audio Preference

Menu	Item	Adjustments / Configurations (alternatives)
	Surround	Surround sound settings [Off] / [V-Audio]
		[V-Audio] :Provides a dynamic enhancer of width to simulate improved spatial effects
	Auto Gain Control	Adjusts the current volume level if it is extremely different from the previous viewed
		channel or input mode [Off] / [On]
	Volume Correction	Adjusts the volume of individual channel or input mode
		Adjusts the low frequency sound [Over 30cm] / [Up to 30cm]
	Speaker Distance to Wall	t If the back space between the TV and wall is over 30 cm, [Over 30cm] is
		recommended.
		t If the back space between the TV and wall is within 30 cm, [Up to 30cm] is
		recommended.
		Selects multiplex sound mode (if available)
		[Stereo] : Use this normally
	MPX	[Mono] : When stereo signal cannot be received
		[M1] / [M2] : Available while mono signal is transmitted
		t Analogue mode only
		Selects the initial setting for audio tracks [Auto] / [Multichannel] / [Stereo] / [MPEG]
		t Selectable options vary depending on the country you select.
Sound		[Auto] : Automatically selects the audio tracks if programme has more than two tracks.
		The priority is given in the following order - Dolby Digital Plus, 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.
	Audio Preference	t Dolby Digital Plus and Dolby Digital are the methods of coding digital signals
		developed by Dolby Laboratories. Apart from stereo (2ch) audio, these signals can be
		multi-channel audio.
		t HE-AAC is a perceptual coding method used to compress digital audio for efficient
		storage and transmission.
		t MPEG is an audio compression method that compresses audio to the smaller size
		without any considerable loss of audio quality.
		t Dolby Digital Plus and HE-AAC are the technologies for HD (High definition)
		programmes.
		t DVB mode only
		SPDIF : A standard audio transfer file format
		Selects the initial setting for digital audio output signal from DIGITAL AUDIO OUT and
		HDMI2 (ARC function) terminals [Auto] / [PCM]
	SPDIF Selection	[Auto] : Dolby Digital Plus and Dolby Digital are output as Dolby Digital Bitstream.
		HE-AAC (48 kHz) multi-channel is output as DTS.
		MPEG is output as PCM.
		[PCM] : Digital output signal is fixed to PCM.
		t For DVB mode or Video mode of Media Player (p. 53)
		t ARC (Audio Return Channel) : A function of digital audio output using HDMI cable

How to Use Menu Functions

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