Panasonic TX-L42DT65B Ehelp page 187

Audio Preference
(Multichannel / Stereo
Selects the initial setting for audio tracks.
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.
MPEG is an audio compression method that compresses audio to the
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smaller size without any considerable loss of audio quality.
For digital mode
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Ireland only
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SPDIF Selection
(Auto / PCM)
Selects the initial setting for digital audio output signal from DIGITAL AUDIO
and HDMI2 (ARC function) terminals.
SPDIF is a standard audio transfer file format.
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Auto:
Dolby Digital Plus, Dolby Digital and HE-AAC multi-channel are output
as Dolby Digital Bitstream. MPEG is output as PCM. DTS is output as
DTS for video contents of Media Player / Network services.
PCM:
Digital output signal is fixed to PCM.
ARC (Audio Return Channel) is a function of digital audio output using
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HDMI cable.
For Digital TV or video contents of Media Player / Network services
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Media Player
Home network
SPDIF Delay
Adjusts the delay time of the sound output from DIGITAL AUDIO and HDMI2
(ARC function) terminals if the sound does not synchronise the image.
For digital mode
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Ireland only
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/ MPEG)
Video mode Audio output settings
Videos Audio output settings
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