Junger Audio C8405 - SDI (3G/HD/SD) - Manual (Page 10)

digital audio
modular
processing system
C8000
3G/HD/SD SDI 16ch embedder/de-embedder
with video delay and VANC Dolby Metadata
C8405
Jünger Audio-Studiotechnik GmbH
Justus-von-Liebig-Strasse 7
D -12489 Berlin
Germany phone: +49-30-677721-0
fax:
+49-30-677721-46
[email protected]
www.junger-audio.com
10/15
EMBEDDER
The EMBEDDER page is a little more complex because it allows routing within the SDI domain as
well as in any combination with signals returned from the audio busses.
A word on embedding There are two principle methods to embed audio. First of all you can
leave the Ancillary Audio Data structure as it is and simply replace
the audio samples. If there is no Group existing from the input you must
build a new one and place it somewhere in the Ancillary Data area.
Unfortunately SMPTE left room for freedom where to place the data.
This may cause fragmented data blocks after the embedding process,
with wrong parts left over. If this is the case a downstream
de-embedder will be confused and may reassemble the audio samples
in a wrong way causing distortion.
That’s why the C8405 offers a mode where you can clean up the
incoming data structure and generate a new one.