Panasonic TX55DX650B Operating Guide

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.

Auto

:

Dolby Digital Plus, Dolby Digital and HE-AAC multi-channel are output 

as 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 using 

HDMI cable.

 

●

For digital, video content

 Media Player > Video mode > Audio output settings

 Network > Videos > Audio output settings

HDMI Audio Format

(

Auto

 / 

Bitstream

 / 

PCM

)

Selects the audio format for the HDMI input signal.

Auto

:

When the TV speakers are active, audio format is fixed to PCM. When 

the sound is delivered from theatre speakers, audio format is fixed to 

Bitstream.

Bitstream

:

Dolby Digital Plus and Dolby Digital are output as Dolby Digital 

Bitstream. Other digital audio output signals are output as PCM.

PCM

:

Digital audio signal is output as PCM.

PCM Optical Level

Adjusts the audio level of PCM output from DIGITAL AUDIO and HDMI2 (ARC 

function) terminals to equalise with that of the other audio types.

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