Dolby Laboratories Multichannel Audio Tool DP570 - Manual (Page 42)

26 Dolby ® DP570 Multichannel Audio Tool User’s Manual
Using the DP570 Features
4.3.3 Using External Metadata
When using external metadata, make certain that the values are correct for the program.
Particularly when you use external program configurations, it is important to ensure that
the number of programs and the number of channels in each program are correctly set.
Monitoring with the DP570 should alert you to any problems.
Example 2—Adding a Second Program or Changing a Program
Signal and metadata flow from this example are shown in Figure 4‐2 .
We’ll assume you receive a 5.1‐channel program encoded in Dolby E, and you want to
create a stereo‐compatible mix for it and reencode both onto another Dolby E master. In this
case the metadata for the second program does not yet exist, but you want to retain the
metadata from the first program. Furthermore, the program configuration from the
original stream must be changed because it indicates a single 5.1 program instead of the
5.1+2 configuration you are creating.
After you create the stereo mix, you reencode the 5.1‐channel program along with the
stereo program using a DP571.
To monitor the reencoded program:
1. Click the Int radio button to select an internal program configuration source, and
choose 5.1+2 from the drop‐down list in
Figure 2‐2 .
2. Select either external metadata source for Program 1.
3. Click Program Select button 2 in the software.
4. Click Int to select an internal program metadata source, and select the parameters for
the second program metadata.
Figure 4‐2
Figure 4‐3
Figure 4-2 Adding a Second Program
DP572 DP570 DP571
Digital
Output
Router
Output
Metadata Out
Digital
Input
Metadata
In Metadata
In Metadata
Out
Digital
Input
Metadata Adjustment
• Change Program Config
to 5.1+2 (internal source)
• Set parameters for new
two-channel program
D 563 P
In Out
6
5.1 5.1+2
8
2