Dolby Laboratories Multichannel Audio Tool DP570 - Manual (Page 58)

42 Dolby ® DP570 Multichannel Audio Tool User’s Manual
Using the DP570 in DVD Mastering
5.2 Typical Tasks
The DP570 is used in the monitor chain to emulate a consumerʹs listening environment.
5.2.1 Setting the Dialogue Level
As the mix is nearing completion, use the dialogue level indicators in DolbyRemote 570
shown in
Figure 5‐2 during a representative period of speech to select the Dialogue Level
Set value for the program. The measured value of the audio program appears in yellow;
the dialogue level value set in the software appears in green.
Figure 5‐2
Figure 5-2 Dialogue Level Controls
In most cases, selecting and measuring a representative period of speech within the
program will serve as a good example of the overall dialogue level throughout the
program, provided good mixing practices are observed. In some cases such as
documentaries, location sound, and so on, it may be difficult to match the dialogue level
from section to section, and while the dialogue level indicator on the DP570 can help, your
ears are the best tool.
To determine a Dialogue Level value for the program, use short‐term measurements as
they provide a measurement over a 10‐second period of program audio and do not average
the measurement over a long period of time. For more information on the measurement
modes, see
Section 4.7.2 .
Pressing the Accept button resets the Dialogue Level parameter within the output
metadata stream feeding downstream equipment to equal the yellow value. The green
number changes to the value selected.
5.2.2 Monitoring the Dialogue Level
As you mix, check the dialogue level indicator—the yellow numbers shown in Figure 5‐2 —
frequently to be sure that the program stays within acceptable limits.
Note: For 5.1 programming, the measurement channel should be set to Center, as most of
the important speech content will occur in this channel. Measure both the Left and
Right channels of stereo input.