Panasonic TH-55AS670M Ehelp page 46

SPDIF Selection
(Auto / PCM)
Selects the initial setting for digital audio output signal from DIGITAL AUDIO
OUT 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.
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 video contents of Media Player / Network services
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Media Player > Video mode > Audio output settings
Network > Videos > Audio output settings
HDMI Input
(Digital / Analogue)
Selects to fit the input signal.
Watching > External equipment > HDMI features
Digital:
When sound is carried via the HDMI cable connection
Analogue:
When sound is not carried via the HDMI-DVI adaptor cable connection
For HDMI input
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