Grass Valley MRC v.1.2 - Manual (Page 164)

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Tutorials
Pass-Through Sources
Thus, if the MRC pass-through list is . . .
1 1281 5 1285 9 1289 13 1293
2 1282 6 1286 10 1290 14 1294
3 1283 7 1287 11 1291 15 1295
4 1284 8 1288 12 1292 16 1296
. . . then your source, defined in NV9000-SE Utilities, would have levels
Audio 1 = 1281
Audio 2 = 1282,
. . .
Audio 16 = 1296.
Taking this source (directly) to an output (of a disembedder/embedder card) will route all the
audio channels of the video at the output straight through to the output without shuffle.
A shuffle could be accomplished if the panel operator is willing to perform a level mapping.
The second method, discussed next, addresses shuffling.
Method 2
Create multiple source devices whose individual port numbers are the same as the numbers you
entered in the ‘Pass-Thru Shuffle Audio Sources’ table of MRC’s router levels page.
You should create a source device for each of the pass-through audio sources in the table. Each
source device has just one level that matches a pass-through source you defined in MRC. Name
these sources in a way that is acceptable to panel operators. We recommend you create a cate-
gory for these sources. A panel operator will then be able to select any pass-through channel
with just 2 button presses.
After the router and the NV9000 control system are configured and running, control panel oper-
ators may use the designated pass-through sources to perform pass-through routes with
shuffle.
Panel operators make an extended pass-through route by creating a breakaway of the individual
pass-through audio channels from the defined pass-through source to the desired destination.
Thus, if the MRC pass-through list is . . .
1 1281 5 1285 9 1289 13 1293
2 1282 6 1286 10 1290 14 1294
3 1283 7 1287 11 1291 15 1295
4 1284 8 1288 12 1292 16 1296
. . . then your 16 sources, defined in NV9000-SE Utilities, would have levels
Source Name Level Port
Pass1 Audio 1 1281
Pass2 Audio 2 1282
. . .
Pass16 Audio 16 1296
and the category could perhaps be named PASSTHRU.