Crystal Vision
Introduction
initially delayed by up to three frames under user control and then further delayed to match
the video delays through the synchroniser and to maintain correct alignment of the
guardband.
After embedding, the combined video and audio stream can be delayed by up to 40ms in
10ns increments. This user setting will delay the signal with respect to the timing reference or,
if no synchroniser is fitted, will provide an additional delay.
For UP-DOWN-VF models ATX and ATXS, after audio re-embedding, the original or modified
ancillary data is re-inserted into the video stream. The inputs to the cable drivers are a switch
that routes either the SD or HD signal according to what the user has selected for each output
channel.
1.2 UP-DOWN-A-VF
The
UP-DOWN-A-VF
has the following features that are common to all models across the
range:
Simultaneous multiple high quality conversions with matched video delays.
Motion-adaptive video de-interlacing.
Outputs HD and SD simultaneously with independent user timing adjustments.
Noise reduction with detail and edge enhancement.
Aspect ratio conversion, customised picture size, position and cropping.
Video proc-amp.
Passes four groups of embedded audio, including Dolby E, with delay matched to video.
Passes Ancillary timecode.
Relay bypass protection with appropriate rear module.
Optical input/output option with appropriate rear module.
UP-DOWN-A-VF
is ideal for those working in synchronous embedded audio environments. It
can pass four groups of audio, de-embedding the four groups and converting them to the
appropriate format before re-embedding them. Audio will be delayed automatically to match
any video delay. It also includes audio signal probe functionality making it useful for flagging
up faulty signals, especially in multi-channel applications.
1.3 UP-DOWN-ATX-VF
The main features of the
UP-DOWN-ATX-VF
are the same as the
UP-DOWN-A-VF
but with
the
following major additional features:
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-ATX-VF
supports SMPTE 2031 and 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
6
23 June 2017
