connecting you to the world
National.Geographic.
Engineering.Connections.S01E04.Keck.Observatory
720p.HDTV.x264-DHD
Documentary � GENRE
English � LANGUAGE
None � SUBTiTLES
45:48 minutes � LENGTH
720p � SOURCE
x264 � ViDEO CODEC
1280x720 � RESOLUTiON
4132 kbps � ViDEO BiTRATE
29.97 fps � FRAMERATE
AC3 5.1 � AUDiO CODEC
384 kbps � AUDiO BiTRATE
SUMMARY
Richard Hammond journeys to discover the startling
Engineering Connections behind the Keck
Observatory which has seen further into the
universe than any other telescope on Earth. He
reveals that the Keck Observatory owes its
incredible design to an Ancient Greek polymath,
an early Twentieth Century Russian inventor, an
American Civil War general, a break-through in
aerial reconnaissance and an attempt to cure
Yellow Fever. Hidden in its DNA he finds an
ancient technique for starting a fire, a weird
sounding musical instrument, a sand blaster, a
Korean War spy plane and a refrigerator.
RELEASE NOTES
You may have noticed the size of this
release is 1493 MB. The reason is I ran it at the
x.264 standard of 1119 but the quality was lacking
because bitrate was just too low. Major loss of
detail and some blockiness. IMHO the main problem
with the current rules is no real concern is given
to frame rate. The basic rules stem from 42 minute
average length scripted TV shows at 23.976 FPS.
1119 MB is ok for them but for most documentaries
it is not good enough because most docu's are 45
minutes and 29.97 FPS and include images that are
way more detailed than most scripted TV shows.
(Think animals and space exploration and lots of
cool graphics etc...) Anyway With Audio of 384
kbit/s here are some quick numbers to mull over.
42 minute encode you get 3336 kbit/s. So at
23.976 FPS you get 139 kbits average per frame
45 minute encode you get 3088 kbit/s. and at
29.97 FPS you get 103 kbits average per frame
As you can see the difference is substantial.
The longer run length hit is bad enough but add
to that the 25% loss of bitrate due to FPS
increase and you are now over 35% less bits per
frame to work with and quality takes a huge nose
dive. So what does one do to get the quality back?
The next size is 1493 MB which is 34% greater than
1119 MB. Well damn that worked out well huh. I
feel this should be added to the rules. If not
all encodes at the very least for documentaries
which tend to have much more amazing detailed
imagery.
720p... quality comes first. :D
We are currently looking for:
1) Discovery Channel HD, History HD, Science HD,
Nat. Geographic HD & Animal Planet HD capers.
2) 10mbit+ .eu boxes for exclusive group usage
FQM CTU REVEiLLE STFU
and all the others, who choose quality over speed