User's Manual

18
Configure Channels 3 & 4
Interface = Select the input connector/s you want to use, as HDMI or YPbPr Component or CVBS Composite
default is HDMI
PLEASE NOTE : THE COMPOSITE VIDEO INPUT IS THE RED RCA out of the rgb
the Yellow is ONLY for the closed captioning capture
Video Format = Select between MPEG2 and MPEG4 H264 video compression
default in USA/CANADA/MEXICO is MPEG2
LOW DELAY = Set the speed and operation mode of the encoder to make the TV to decode faster or slower.
default is NORMAL – Works on any TV
mode1 = FASTER ( 50 milliseconds encoding time )
mode2 = Mid Speed ( 150 milliseconds encoding time )
manual = Adjust the speed through the DTS parameter 1= faster / 500= slower
While in manual you should set the GOP B frame to 1 and the Pframe to 6 for the best quality
Important : the Low delay mode 1 and 2 send I-FRAME only to the TV antenna mpeg decoder ( fast mode )
If the TV decoder is not fast enough, it might drop frames.
If this is the case, use the manual mode, and find the best setting adjusting the DTS from 1 ( fast ) to a higher
value ( reduce the speed ). You might also try to use DTS 1 and increase the Value of Bframes from 1 to 2
or 3 ( max ) so help slower tv decoders to decode faster “
CC Switch = Select ON if you feed CLOSED CAPTIONING CVBS Signal to the YELLOW RCA,
otherwise leave OFF
default in USA/CANADA/MEXICO is ON
Video Bitrate = Quality of the video
default for USA QAM CABLE = 19000 ( 19 Megabits )
DTS Delay = Active only with the low delay – see above
GOP BFrame = Active only with the low delay – see above
GOP PFrame = Active only with the low delay – see above
H264 Profile = Active only when the Video Format is selected to H264 MPEG4 – Usually Not used for US TVs.
Select between the different profiles of the MPEG4 H264 formats, depending from the MPEG4 H264 Decoder and
application. Usually this parameter is not used as the US Television are MPEG2, so this control is not active while in
mpeg2 video mode
default = not used
H264 Level = Active only when the Video Format is selected to H264 MPEG4 – Usually Not used for US TVs.
Select between the different levels of the MPEG4 H264 formats, depending from the MPEG4 H264 Decoder and
application. Usually this parameter is not used as the US Television are MPEG2, so this control is not active while in
mpeg2 video mode
default = not used
Auto Config = When selected, the channel will auto-detect the input resolution between 480i / 720p / 1080i / 1080p
@59.94 frames per second standard USA TV.
NOTE: If your unit has the 720p processors Chipsets in place of the 1080p ones, this selector will not be active and the
resolution will be max 720p
default for the 1080p models = SELECTED
Resolution = Not active when the AUTO CONFIG checkbox is selected
If the Auto Config check box is not selected, it means you want to set a specific video size to the output for this channel,
so this check box will allow you to set the size of the Picture to the output after encoding. You might need to use this to
reduce a 1080p to a 720p format to make a video compatible to 720p only televisions, or just to reduce the format and
reduce the bitrate when used for ip streaming to narrow bandwidth networks
default = not used – not active / otherwise select : 1920*1080i 60i or 1280*720 60p or 720*480 60i for US TVs