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Use this normally.
Mono:
When stereo signal cannot be received
M1
/ M2:
Available while mono signal is transmitted.
For Analogue mode
●
Audio Preference
(Auto
/
Multichannel
Selectable options vary depending on the country you select.
●
Selects the initial setting for audio tracks.
Auto:
Automatically selects the audio tracks if a 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.
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.
HE-AAC is a perceptual coding method used to compress digital audio for
●
efficient storage and transmission.
MPEG is an audio compression method that compresses audio to the
●
smaller size without any considerable loss of audio quality.
Dolby Digital Plus and HE-AAC are the technologies for HD (High
●
definition) programmes.
For DVB mode
●
Audio Type
(Standard
/
Visual
Impaired)
Narration settings for visually impaired users (only available in some
countries).
Set to
Visual Impaired
●
/
Stereo
/ MPEG)
to activate the narration sound track when available
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