Cisco D9854, Installation And Configuration Manual, Page: 127 / 440

Setup Menu
103
Digital Out Preference
When Dig Out Pref is set to PCM Samples, the output is PCM regardless of whether
it's MPEG, Dolby Digital (AC-3) or AAC audio. Additionally, when the output is
Compressed, MPEG-1 L1 and L2 will be output PCM, even though Dolby Digital
(AC-3) and AAC is compressed (and transcoded).
Digital Output Preference
Output Input PCM Samples Compressed
DDP Mode
Transcode
(Converter)
Passthrough
MPEG LA (MPEG-1 and
MPEG-2) PCM PCM PCM
Dolby Digital (AC-3) PCM Dolby Digital (AC-3) Dolby Digital (AC-3)
Dolby Digital Plus (E-AC-3)
(Bit rate < 1.5 Mbps) PCM Dolby Digital (AC-3) Dolby Digital Plus (E-
AC-3) (no over-
clocking, x1)
Dolby Digital Plus (E-AC-3)
(Bit rate > 1.5 Mps) PCM Dolby Digital (AC-3) Dolby Digital (AC-3)
MPEG-2 AAC, MPEG-4
(AAC and HE-AAC) PCM MPEG-2 AAC,
MPEG-4 (AAC and
HE-AAC)
MPEG-2, MPEG-4
(AAC and HE-AAC)
Captions
Menu Item Description Parameters
Preferred Mode Selects the type of closed captioning
to use if there are multiple available
in the stream.
Auto, SA Custom, EIA 708,
Type 3, Type 4 SA, DVS 053
Type 4 ATSC, Reserved or
DVS 157. The default is Auto.
Note: SA Custom is not
supported when telecine video
coding is enabled.
Actual Output Indicates the actual closed caption
mode in the output. This is read-
only.
Auto, SA Custom, EIA 708,
Type 3, Type 4 SA, Type 4
ATSC, Reserved, or DVS 157