Monitoring the dialogue level, Monitoring downmixes, Using the dp570 with other dolby equipment – Dolby Laboratories Multichannel Audio Tool DP570 User Manual
Page 64: Using unity gain mode, Monitoring metadata, 3 using the dp570 with other dolby equipment, 4 using unity gain mode, 5 monitoring metadata
48
Dolby
®
DP570 Multichannel Audio Tool User’s Manual
Using the DP570 in Live Remote Broadcast
6.2.2
Monitoring the Dialogue Level
As you work, check the dialogue level indicators—the yellow numbers shown in
—frequently. Make adjustments to the mix to keep the dialogue level value
(during periods of representative speech) within a few decibels of your target.
6.2.3
Monitoring Downmixes
Check downmixes occasionally and make sure the announcer and other important speech
elements are not buried during stereo downmixing or Pro Logic decoding.
6.3
Using the DP570 with Other Dolby Equipment
The Cat. No. 549 GPI/O Controller allows quick changes of downmix and compression
modes while monitoring. The DP570 can be used either with the DP569 Dolby Digital or
DP571 Dolby E Encoders by attaching the metadata connectors.
6.4
Using Unity Gain Mode
Unity Gain mode, detailed in
, allows the output of the DP570 to match
preprocessed signals to simplify comparisons during the mixing process.
6.5
Monitoring Metadata
The following highest‐priority parameters have the greatest impact on your work. We
suggest you address them in this order:
1.
Program configuration: The number of type of programs included in the Dolby E
stream.
2.
Channel mode: The number of audio channels in the program; set it once for each
program.
3.
Dialogue level: Compare the measured value, shown in yellow numbers, to the
metadata parameter value, shown in green numbers, periodically as you work.
4.
Compression mode: Select one that sounds best; None is not recommended as it may
cause peak limiting in a consumerʹs decoder during downmixing. For more
information on compression modes, see
on page 87. Set it
once for each program.
5.
Surround –3dB flag on 5.1 programs only: this parameter should be set to Disabled.
6.
Downmix parameters: set according to taste.
•
Center downmix level
•
Surround downmix level
•
Preferred stereo downmix
•
Lt/Rt Center downmix level
Note:
Ensure that these parameters are set correctly because other parameters depend on
them.