VISTEK V6333E/D & V6333Q/D
hd/sd sdi digital audio multiplexer
HU-V6333E/D&Q/D
3
1.
DESCRIPTION
The V6333/D Digital Audio Multiplexer is a full broadcast specification embedder of audio data into HD
(High Definition) and SD (Standard Definition) SDI data streams. Two versions of the V6333 are available,
one with 4 AES inputs (V6333Q/D), and another with 8 AES inputs (V6333E/D). Although the V6333
processes High Definition (HD) video signals, it is fully compatible with all other products in the range in
terms of form factor, power supply requirements and control interface. The V6333 is a 3U high card that can
be fitted into a V1606 rack or a V6011 '1-Box', from which it obtains its power and control.
There is also an audio de-multiplexer module, the V6334, which is fully compatible with the V6333.
A passive rear module is required for all signal interconnections. There are 3 types of rear module; a 4
unbalanced input (Single module width), an 8 unbalanced input (Double module width), and one offering 8
balanced inputs (Single module width).
The unit automatically detects the standard and format of the SD or HD input video and operates
accordingly.
The unit embeds audio onto SDI video data stream according to SMPTE 272M (SD) and SMPTE 299M
(HD). All of the available audio groups may be embedded. Unlike multiplexers from some other
manufacturers the audio does not need to be synchronous with the video into which it is to be embedded.
This makes the use of embedded audio within a studio area much simpler to implement. However it must
be noted that some other manufacturers de-multiplexers will not accept embedded audio if it is
asynchronous to the SDI clock.
Another facility to assist the installation in a real environment is the ability to resample an asynchronous
AES input to an external reference, generating synchronous multiplexed audio. The external reference
may be another AES signal, or the SDI video itself.
There are upto two SDI outputs, and one re-clocked versions of the SDI input. All ancillary data may be
optionally stripped off the SDI input signal prior to embedding. The EDH is optionally regenerated on the
card for SD.
The unit is fully controllable over the DART remote control system.
