Audio Output Group Substitution - GRASS VALLEY MAESTRO 1.5 - RELEASE NOTES Release Note

Version 1.500

Audio Output Group Substitution

< Monitor Point > / < Source Name >
Main Stereo
<Source>
Dolby 5.1
<Source>
Dolby + 2
<Source>
Scroll
Input
Options
ALM
36
Typically, there is a one-to-one correspondence between audio input
groups and audio output groups as seen in
it is possible in some cases that an audio input group does not exist for all
audio output groups. In this case, it may be desirable to map one input
group to several output groups so that an audio signal exists on all output
groups. Figure 19 shows an example of this where the "Main Stereo" audio
input group is mapped to the "Spanish" and "French" Mono output groups
since there are no Spanish and French audio input groups in the source.
Figure 19. Audio Output Group Substitution
Default
Un-Map
Mapping
This scenario requires a down mix of the stereo input group to the mono
output groups. Given the available audio groups in Maestro (mono, stereo,
Dolby 5.1, Dolby 7.1 and Dolby E Pass Through), there is a known set of
possible channel mappings and down-mix, up-mix definitions. These map-
pings are built into Maestro and require no configuration.
Mix To
Main Stereo
Clean
<Status>
Feed
Dolby 5.1
<Status>
Dolby + 2
<Status>
ID
1
Spanish
<Status>
French
<Status>
Scroll 5.1
Output
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Figure 18 on page 33. However,
AUDIO CONTROL
Mix To Mix To
Clean Clean
Feed Feed
ID Amin
2 2
Lt-Rt Stereo
Monitor
- 3 4 . 1
d B
Maestro — Release Notes
Mix To
Clean
Feed
P
EMRG
G
BCST
M
P
S
T
Mono
Dim