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Forums » HDTV: Bandwidth Hog » Current speed?
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danza
Premium
join:2002-08-23

Current speed?

3Mpbs... isn't that already possible with the new dsl/cable speed?

Yoda2009

join:2003-10-07
Toronto, ON

Re: Current speed?

said by danza See Profile:
3Mpbs... isn't that already possible with the new dsl/cable speed?

Gbps...lol.
Alphy

join:2001-12-31
Troy, MI

Re: Current speed?

I think we all need that new Sisqo router that does 400 billion jiggabits.

Yoda2009

join:2003-10-07
Toronto, ON

Re: Current speed?

said by Alphy See Profile:
I think we all need that new Sisqo router that does 400 billion jiggabits.

Agreed.

Lumberjack
Premium
join:2003-01-18
Newport News, VA
Thong, tha thong thong thong. Sisqo a go-go.
--
My homies is in da hizouse!
Kearnstd
Elf Wizard
Premium
join:2002-01-22
Mullica Hill, NJ
1.21 Jiggawatts?

Lumberjack
Premium
join:2003-01-18
Newport News, VA

Re: Current speed?

said by Kearnstd See Profile:
1.21 Jiggawatts?

Duh. From a vile of plutonium unless of course you are in the past in which case you will need a direct lightning hit at precisely the right time.

Don't you noobs know anything about this computer stuff?
--
My homies is in da hizouse!

Corvus
Flaming Tards Since 2003
Premium,VIP
join:2003-11-26

With digital TV it's something else, we are talking of QUAMS, But 3Gbps is a lot. We can usually put few HDTV on a QUAM but a QUAM cannot handle this now. So basically, if you want to broadcast this you need to span the stream on few frequencies.
--
Jesus saves, but only Buddha makes incremental backups.

Xela19115

join:2000-10-06
Richboro, PA
·Verizon FIOS

Re: Current speed?

Actually it's QAM not QUAM. QAM stands for Quadrature Amplitude Modulation. In one 6 Mhz channel cable company using QAM-256 mode can send 38.8 Mbps of digital video/audio.

Digital video is compressed with MPEG-2 codec. An 1080i HD program can be compressed to a maximum of 19 Mbps (usually it's around 15-16 Mbps). Using QAM-256 mode 2-3 HD channels can be multiplexed. If you use MPEG-4 or WMV9 codecs bandwidth requerement is about 1/2-1/3 of MPEG-2.

1080p HD video if encoded using next generation codecs (MPEG-4) and transmitted using QAM-256 or QAM-1024 -- very doable.

Thing is that there is probably very little noticeable picture quality improvement. If it was like 4096p then of course by all means I want that. But the difference between 1080i and 1080p - is not really worth it.

Corvus
Flaming Tards Since 2003
Premium,VIP
join:2003-11-26

Re: Current speed?

Thanks for the info, maybe you can answer this one: I've heard that 1080i is use in movie industry when working on a movie, anything about that?
--
Jesus saves, but only Buddha makes incremental backups.

Lumberjack
Premium
join:2003-01-18
Newport News, VA

Re: Current speed?

It would make sense to capture and render at the highest quality for a big budget film (at least to me). Once complete it can be easily down converted for film, DVD, streams, etc...
--
My homies is in da hizouse!

cailyoung

join:2003-06-30
Australia

Re: Current speed?

Most big budget films capture in "academy 2K", or basically 2048P. They might rough-cut with 1080i to make display on a TV easier, but generally on-line footage will be in '2K' image files. The data is stored on D1 tapes.

technick
Premium
join:2000-12-16
Loganville, GA
3 Gbps which is easily confusable with 3Mbps in some third world countries...
pad_34

join:2003-12-26
Battle Lake, MN
Go Sattilite!
biochemistry

join:2003-05-09
92361

Re: Current speed?

Learn to spell before you make an @$$ of yourself.

rchandra
Stargate S G-1 And Atlantis Fan
Premium
join:2000-11-09
14225-2105
clubs:

Re: Current speed?

hmmm...ordinarily I'd agree with you. But based solely on what's written, "Sattilite" is caplitalized, so it must be a proper noun. , I still don't have a good idea what Sattilite is though. Presumably, it's some high bandwidth way of broadcasting HDTV. Or maybe they're a company that did that intentionally in order to distinguish themselves.
--
English is a difficult enough language to interpret correctly when its rules are followed, let alone when a writer chooses not to follow those rules. Blog is here
Jeopardy! replies REALLY suck!

JoeOnSunset
Doublethink Is Doubleplus Ungood.
Premium
join:2002-11-25
Ormond Beach, FL

1 edit
Funny Bio, because posting only to correct someone's spelling is something only as a$$ does. So I guess you're in good company.
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