Crystal Vision
Introduction
packets and be encoded as analogue waveforms on an SD output. UP-DOWN-ATX-VF can
be used to convert between SMPTE 2031, OP-47 and teletext in any combination. It is also
possible to specify which line in the VANC space is used to carry SMPTE 2031 or OP-47, an
advantage given the increasingly crowded VANC space. Closed captions can also be
transported across different definitions using its CEA-708 and CEA-608 extractors and
inserters.
UP-DOWN-ATX-VF
will look after any aspect ratio conversion requirements when up or down
converting.
UP-DOWN-ATX-VF
can also be used to label a signal with SMPTE 2016 data by
inserting one of 16 AFD codes to allow a following down converter to output the Standard
Definition with an appropriate aspect ratio conversion.
A further feature is the inclusion of an 8 x 8 audio router in both the SD path and HD path to
allow audio stereo pairs to be shuffled within and between the four embedded audio groups.
1.4 UP-DOWN-AS-VF
The main features of the
UP-DOWN-AS-VF
are the same as the
UP-DOWN-A-VF
but with the
following major additional features:
Two on-board downstream synchronisers (one in each path) to retime the output to a
station reference.
Independently adjustable video, audio and Dolby E delay.
Audio resampling and Dolby E alignment.
Synchronise video that contains both normal embedded audio and embedded Dolby E.
UP-DOWN-AS-VF
is ideal for those working in non-synchronous embedded audio
environments where the audio resamplers ensure a smooth matching of the audio and video
delay, and the guardband of any embedded Dolby E will also be correctly aligned.
1.5 UP-DOWN-ATXS-VF
The main features of the
UP-DOWN-ATXS-VF
are the same as the
UP-DOWN-A-VF
but with
the
following major additional features:
Two on-board downstream synchronisers (one in each path) to retime the output to a
station reference.
Independently adjustable video, audio and Dolby E delay.
Audio resampling and Dolby E alignment.
Synchronise video that contains both normal embedded audio and embedded Dolby E.
Automatic aspect ratio selection using SMPTE 2016 AFD data, WSS or Video Index.
AFD, WSS and Video Indexing insertion.
HD to HD aspect ratio conversion.
Timecode conversion between HD Ancillary Timecode and SD DVITC.
Audio shuffle of stereo pairs using the 8 x 8 stereo router.
Transport and convert CEA-608 and CEA-708 closed caption data between standards.
Carry teletext and subtitle information across different definitions - both SMPTE 2031
and OP-47 supported.
The
UP-DOWN-ATXS-VF
supports SMPTE 2031 (as well as OP-47) to carry teletext
information across different definitions. When up converting teletext data can be taken out of
the analogue coded signal and the same data put in the SMPTE 2031 or OP-47 data stream
created; when down converting the teletext data can be taken out of SMPTE 2031 or OP-47
UP-DOWN-VF User Manual R1.1
7
23 June 2017