Dolby Ac3 Encoder; 1.Auto Mode Pgm Configuration; Table 6-2: Automatic Encoder Bit-Rate Selection; Table 6-3: Channel Mappings And Program Configurations - evertz 7812UDXD Series Manual

7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
There are also two automatic bit-rate configurations. These will automatically adjust the bit-rate
accordingly with the audio configuration of the encoder. The following table shows the bit-rates used for a
specific audio configuration:
3/2
Auto-384 384
Auto-448 448

6.33.1. Dolby AC3 Encoder

6.33.1.1. Auto Mode Pgm Configuration
This selects the automatic program configuration and audio configuration default. This is only used if
"auto" mode is selected for the metadata source.
A standard default metadata message will be used to encode the selected audio configuration mode.
Program
Config
3/2L
3/2
3/1
2/1
3/0
2/0
1/0

Table 6-3: Channel Mappings and Program Configurations


Channel naming convention L=left R=right C=center S=surround, LFE=low
frequency effects (subwoofer) Ls=left surround, Rs=right surround. Shaded box
indicates channel is not used.
Page - 118
2/2 3/1
320 320
320 320

Table 6-2: Automatic Encoder Bit-rate Selection

Channels ch 1
5.1 L
5.0 L
4.0 L
3.0 L
3.0 L
2.0 L
1.0
Revision 1.1.1
2/1 3/0 2/0
256 256 224
256 256 256
ch 2 ch 3 ch 4
R C LFE
R C
R C
R
R C
R
C
1/0
96
96
ch 5 ch 6
Ls Rs
Ls Rs
S
S