Cisco Cisco D9854 Advanced Program Receiver Guia Da Instalação
Setting up Audio and Video Information
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Output
Input
Input
Digital Output Preference
PCM Samples
Compressed
DDP Mode
Transcode
(Converter)
(Converter)
Passthrough
MPEG LA (MPEG-1
and MPEG-2
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)
AC-3) (Bit rate < 1.5
Mbps)
PCM
Dolby Digital (AC-3)
Dolby Digital Plus (E-AC-
3) (no over-clocking, x1)
3) (no over-clocking, x1)
Dolby Digital Plus (E-
AC-3) (Bit rate > 1.5
Mps)
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)
(AAC and HE-AAC)
PCM
MPEG-2 AAC, MPEG-
4 (AAC and HE-AAC)
4 (AAC and HE-AAC)
MPEG-2, MPEG-4 (AAC
and HE-AAC)
and HE-AAC)
b From the DD+ Output drop-down list, choose the Dolby Digital Plus output
mode. If Trans is selected, it will transcode to Dolby Digital audio output. If
Pass (passthrough) is selected and the bitrate is less than 1536 kbps (48 Khz),
passthrough is performed and Dolby Digital Plus compressed out is received.
If Pass (passthrough) is selected and the bitrate is more than 1536 Kbps,
transcoding will be performed. This setting affects only the AES-3id and SDI
outputs.
Pass (passthrough) is selected and the bitrate is less than 1536 kbps (48 Khz),
passthrough is performed and Dolby Digital Plus compressed out is received.
If Pass (passthrough) is selected and the bitrate is more than 1536 Kbps,
transcoding will be performed. This setting affects only the AES-3id and SDI
outputs.
Note: Dolby Digital Plus is only available on Audio 1.
Note: Ensure that the Digital Out Preference is set to Compressed for digital
passthrough. Otherwise, only decoded PCM will be available. This parameter
has no effect if the audio source is not Dolby Digital Plus.
Note: Ensure that the Digital Out Preference is set to Compressed for digital
passthrough. Otherwise, only decoded PCM will be available. This parameter
has no effect if the audio source is not Dolby Digital Plus.
c In the SDI Audio Group Setup area, choose the audio source (1 or 2) in the
Audio Decode drop-down list and the source audio channel (left or right)
from the Channel drop-down list for Group Slot 1 to 4. The Group Slot is the
HANC position.
from the Channel drop-down list for Group Slot 1 to 4. The Group Slot is the
HANC position.
5 Click Apply.
Viewing the Audio Status and Audio PIDs
The Audio Status area displays the current audio settings. The following table
describes the audio status information:
describes the audio status information:
Audio Status
Description
Audio
Displays the current audio deocder status.