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-   -   Superhub : 200Mbit coming soon? (According to a survey) (https://www.cableforum.uk/board/showthread.php?t=33699489)

muppetman11 12-01-2015 12:27

Re: 200Mbit coming soon? (According to a survey)
 
I'm puzzled how we got onto Blu Ray from talking about broadcasting/streaming sport.

Shock horror Blu Ray offers greater PQ and specs.

qasdfdsaq 12-01-2015 12:56

Re: 200Mbit coming soon? (According to a survey)
 
Quote:

Originally Posted by Ignitionnet (Post 35752097)
The comparisons I linked were notable in mentioning the difference in audio quality.

Fingers crossed that, at some point fairly soon, enhanced lossy codecs and lower bit rates aren't needed to compensate for sub-standard networks.

Indeed, that's what reminded me of it in the first place. The LOTR trilogy is faily old by now, but does still use DTS-HD Master audio, although only in 6.1 format. Regardless, up to 25Mbit/s peaks are allowed, even if the average is much lower.

That, in fact, leads me to one of the fundamental differences between streaming and optical media - the latter allows for much higher variability in data rate, whereas streaming is more akin to the CBR (constant bit-rate) encoding that was used in the very early days that has been long since abandoned, because, well, it sucked.

Unfortunately for decent VBR steams to work we either need much faster (peak) internet connections or bigger buffers... And nobody likes buffering.

---------- Post added at 11:46 ---------- Previous post was at 11:43 ----------

Quote:

Originally Posted by Kushan (Post 35752118)
Yeah, I wasn't trying to dispute the streaming vs Blu-ray argument at all, I was genuinely curious to see how things like streamed h.265 stacks up against say an MPEG-2 blu-ray. It's one thing to mention bit rates but if the CODEC is naff, then it's not the full picture.

Well, H.265 streaming is just as rare as MPEG-2 Blu-Ray, as in both are the exception to the norm. Most streaming uses H.264 class codecs as do most Blu-rays. It's only very old Blu-rays and very new streamers that do different, so comparing a 2016 codec to a 2006 codec isn't exactly representative :p:

Speaking of, H.265, 4K, wide-gamut and deep-colour have all been incorporated into the Blu-ray UHD standard now, so streaming is going to have even more competition.

---------- Post added at 11:56 ---------- Previous post was at 11:46 ----------

Quote:

Originally Posted by Ignitionnet (Post 35752097)
In the case of the Lord of the Rings trilogy the following bit rates were used for the extended edition Blu Rays:

LOTR: Fellowship of the Ring
Average video: 29.84Mbps
Average audio: 4.717Mbps

LOTR: The Two Towers
Average video: 29.9Mbps
Average audio: 4.427Mbps

LOTR: The Return of the King
Average video: 30.23Mbps
Average audio: 4.474Mbps

Actually, now that you mention it, that's missing out one very important metric: bits per pixel. Those movies frames are 1920x800x24p equating to 36.9 million pixels per second, represented by around 30 million bits per second of data.

HDTV broadcasts and/or streams are typically 1920x1080x30p or 60p equating to at least 62.2 million pixels per second, or in other words, that's at a minimum already 70% more data that has to be compressed into one third the bitrate.

Speaking of, Sony's 'Mastered in 4K' blurays are 1080p media with an enhanced average bitrate of 35Mbps to 38Mbps supposedly.

muppetman11 12-01-2015 13:04

Re: 200Mbit coming soon? (According to a survey)
 
H.265 is already in use , Netflix use it for 4K , Wuaki are using it for 4K Amazon Instant 4K some Youtube 4K uses it as well as Google's own VP9.

qasdfdsaq 12-01-2015 13:06

Re: 200Mbit coming soon? (According to a survey)
 
Quote:

Originally Posted by muppetman11 (Post 35752151)
H.265 is already in use , Netflix use it for 4K , Wuaki are using it for 4K Amazon Instant 4K some Youtube 4K uses it as well as Google's own VP9.

And none of them are 1080p

muppetman11 12-01-2015 13:12

Re: 200Mbit coming soon? (According to a survey)
 
Agreed but that's hardly surprising considering many who can already watch 1080p streaming would be ruled out as they'd need new hardware.

qasdfdsaq 12-01-2015 13:57

Re: 200Mbit coming soon? (According to a survey)
 
Yes they would, although ruling out PCs which are perfectly capable of software decoding is a bit obtuse.

Regardless, the point was Kushan was interested in a comparison between streaming and Blu-ray quality, presumably at the same resolution - in which case the same codec is likely to be used for both.

ccarmock 12-01-2015 23:19

Re: 200Mbit coming soon? (According to a survey)
 
All this talk of higher speeds - I'm still hoping VM Business get their issues with static IP on the 152 Mb/s service fixed quickly, otherwise the 50 Mb/s service could look decidedly slow in the range of services they offer :-)

As it is, when compared to new residential services it's bottom tier now and could be below bottom tier soon!

Sephiroth 27-01-2015 12:23

Re: 200Mbit coming soon? (According to a survey)
 
In this thread, peops seem focused on the speeds. Well it called 200 meg coming soon.

100/200/300 has been put forward as the VM end point for DOCSIS 3.0 (was it me?) with an interim of 50/150/200 or something like that.

Then there has been talk of 12 or 16 downstreams and capability for 24 downstream channels.

Has anybody thought about what's going on in the real world? Line cards on BSR? Are Motorola BSRs now end of life and being replaced by Arris? Do the hubs/data centres have the electrical power and server room space for build and transition? Will they have to temporarily put 12 channel line cards into BSRs at crowded local hubs while they sort out their space issues?

These are the real behind the scenes challenges for VM to be able to wave their willy even higher.

Not to mention that are still DOCSIS areas out there (not many) but area upgrades have to happen everywhere. That would include FTTP using RFOG which can happen in any area getting a complete overhaul because of 20 year old cab amps. There's stacks of behind the scenes stuff they play real close to their chest to make all this happen.

jalzoo 04-02-2015 12:44

Re: 200Mbit coming soon? (According to a survey)
 
Just spoke to a virgin bloke in one of the green cabs around here, he said there will defiantly be an increase this year, he said the packages are likely to be 300mb top tier then 200 and 100.

heero_yuy 04-02-2015 12:54

Re: 200Mbit coming soon? (According to a survey)
 
All rather pie in the sky when we haven't even got our 20-50M upgrade yet. :(

Ignitionnet 04-02-2015 14:34

Re: 200Mbit coming soon? (According to a survey)
 
Quote:

Originally Posted by jalzoo (Post 35757192)
Just spoke to a virgin bloke in one of the green cabs around here, he said there will defiantly be an increase this year, he said the packages are likely to be 300mb top tier then 200 and 100.

Anyone spot a pattern here?

---------- Post added at 13:34 ---------- Previous post was at 13:33 ----------

Quote:

Originally Posted by heero_yuy (Post 35757193)
All rather pie in the sky when we haven't even got our 20-50M upgrade yet. :(

In every upgrade programme there will always be those upgraded early and those upgraded near the end. I speak from experience having been right near the end for the upstream 10:1 upgrades way back when as my area needed rebuilding. Not a bad thing to be near the end either, probably means lots of network upgrades are coming.

linwelin 04-02-2015 16:30

Re: 200Mbit coming soon? (According to a survey)
 
I don't care about downstream any more i just want a decent upstream for streaming. Does any one have an idea as to what the upload would be on 300mb and 200mb ?

qasdfdsaq 04-02-2015 16:32

Re: 200Mbit coming soon? (According to a survey)
 
Somewhere vaguely in the region of between 10:1 and 20:1

General Maximus 04-02-2015 19:00

Re: 200Mbit coming soon? (According to a survey)
 
I am fully expecting it to be 300/20. If they double what it is atm and make 300/24 it'll just be weird

qasdfdsaq 04-02-2015 19:37

Re: 200Mbit coming soon? (According to a survey)
 
But then, they did introduce 152 just to one-up BT, so for the same reason I'd think 24 up is more likely than 20 - again just to beat BT.


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