Evertz HD9155Q-AUD HD Production Afterburner

The HD9155 Series Production Afterburners are a family of powerful devices designed to facilitate the
creation of off-line videotapes from field acquired HDTV masters. The Production Afterburner
downconverts the HDTV input video to SDI and analog standard definition video. When the input video is
in the 1080p/24sF format the HD9155 Series Production Afterburners also create a 2:3 pulldown on the
output video to create a 30 Fps output.
The Production Afterburners read the LTC or RP188 ancillary timecode and make burn-in windows and
new 30 Fps timecode that is in sync with the downconverted video. The original 24 Fps timecode
numbers can be placed in the user bits of the VITC and displayed as a burned-in window. The 2:3
cadence can be controlled from the ancillary timecode or from the LTC. The Production Afterburners
automatically generate video timecode for the standard definition VTR that is converted from 24 to 30 Fps,
and delayed to match the complete A frame cycle of video delay through the Production Afterburner.
The HD9155 Production Afterburners can be easily configured using 9150 Configwareô software utility
supplied with the unit. These graphical software interfaces allow the user to store multiple configurations
for the HD9155 and load them as required.
The HD9155 Series Production Afterburners are available in two downconverter qualities. The original
HD9155 versions have a monitoring downconverter and provide two SDI and two analog downconverted
outputs with characters and VITC suitable for ëon the setí monitoring or compressed digitisation in an nonlinear
editing system. The HD9155Q versions have a high quality downconverter and provide two clean
SDI downconverted outputs with VITC suitable for creation of high quality viewing copies. The HD9155Q
versions also provide one SDI and one analog monitoring output with VITC and Characters suitable for ëon
the setí monitoring or creation of tapes for non-linear editing systems.
When the AUD option is installed (model HD9155-AUD and HD9155Q-AUD), the Production Afterburner
now has the ability to de-embed AES audio from the incoming HD bitstream, and delay it so that it is in
time with the output video from the downconverter. The AUD option provides 2 AES outputs and 4 analog
audio outputs and a front panel headphone jack for monitoring the audio.
Some early units were fitted with the AES option (model HD9155-AES – these units were discontinued with
the introduction of the HD9155-AUD model). These units also have the ability to de-embed AES audio
from the incoming HD bitstream, and delay it so that it is in time with the output video from the
downconverter. The AES option provides 2 AES outputs and a reclocked HD video output in time with the
input video.