Rohde & Schwarz VENICE S, Руководство пользователя

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Product Description

Features
20 VENICE S | User Manual | 2906.1345.02 - 02
Rohde & Schwarz GmbH & Co. KG
With the VDCP command
SubtitleMode
you can determine,
that the system automatically uses subtitle files, if present. To
specify the directory where the system looks for subtitle files
you have to use the
SubtitleFilePath
command.
Currently VENICE S supports Latin and Greek character sets.
Aspect Ratio There are many technical issues while dealing with SD and HD
content. SD content can be available in 16:9 or 4:3. HD content
is always 16:9. A broadcaster must be able to playout all three
types of material and switch seamlessly between them all. The
aspect ratio can be changed at various points in the broadcast
chain.
To get an optimal picture it is important that the format bring
accurate information with it. Outside the US, WSS (Wide
Screen Signaling) was sometimes used with SD signals to
define the aspect ratio. The information was stored on VBI line
20 for NTSC and line 23 for PAL. Meanwhile AFD has replaced
WSS for both, SD and HD material.
AFD (Active Format Description) describes the video picture in
terms of the aspect ratio and other characteristics of the active
image within the coded frame.
With one of the following values in the AFD D
ATA
M
ODE
in the
R&S
®
Device Manager or via the VENICE web service it can be
determined, if the existing AFD data file should be used or if this
data should be overwritten:
If transcoding one file format into another file format
during ingest as well as transcoding the AFD informa-
tion could be lost with the following format: MXF (OP At-
om, Sony XDCam IMX, AS02, AS11, IMF).
AFD data couldn‘t be lost with following formats: MXF
(OP1a Generic, RDD09, Sony XDCam DV, XAVC) and
MPEG-2.
Strip All AFD data is removed.
PassThrough The existing AFD data is passed through.