Jump to content

Sign in to follow this  
bizzibee

Free TV and Broadcast Australia to trial DVB-T2, HEVC & 4K

Recommended Posts

Free TV and Broadcast Australia to trial DVB-T2

 

Regardless of the mention of 4K, moving to DVB-T2 & HEVC is an important step.

 

Here are details on BroadcastAustralia web site:

 

https://www.broadcastaustralia.com.au/free-tv-and-broadcast-australia-partner-on-next-generation-tv-trials/

 

Edited by bizzibee

Share this post


Link to post
Share on other sites
Quote

https://www.stereo.net.au/news/4k-free-to-air-tv-broadcast-trials-start-in-sydney

Ask any 4K TV owner about DVB-T2, and you’ll be told to bring on the new technology as quickly as possible.

 

It's a tough call re: UHDTV2 ....  DVB-T2 seems to be not -quite- enough.

Edited by davewantsmoore

Share this post


Link to post
Share on other sites

 

 

On 3/29/2018 at 10:42 AM, davewantsmoore said:
Quote

https://www.stereo.net.au/news/4k-free-to-air-tv-broadcast-trials-start-in-sydney

Ask any 4K TV owner about DVB-T2, and you’ll be told to bring on the new technology as quickly as possible.

 

It's a tough call re: UHDTV2 ....  DVB-T2 seems to be not -quite- enough.

 

The fact that free to air news services still seem to use Electronic News Gathering footage so much only in standard definition, and apparently get away with it with the public, makes me wonder how keen networks would be to broadcast in 4K. 

 

Free to air commercial programming in Australia these days is littered with advertising by sponsors and promotion by the networks to the point it is unwatchable by many would-be viewers.  I'm not sure that people interested in seeing a high quality 2 hour movie in 4K would choose to watch it intermingled with 1 hour of advertising. 

 

I note that 4K streaming of selected movies is available from Netflix with zero advertising and zero promotional material.  By the time FTA networks were ready to broadcast in 4K, a large percentage of viewers would be able to access "NBN 25" download speeds.  

 

 

On 3/21/2018 at 1:21 PM, bizzibee said:

Regardless of the mention of 4K, moving to DVB-T2 & HEVC is an important step.

Yes.

 

I think many current model  Australian TVs are DVB-T2 & HEVC capable. [T2 and HEVC is already used in certain overseas countries.] The more efficient T2 modulation (compared with DVB-T) combined with the more efficient HEVC codec (compared with MPEG-4) would provide the opportunity to carry even more TV services than currently. And it would allow for more services to be carried at 1920x1080 pixels rather than standard definition (720 x 576i).

 

I wonder whether any of the trials will actually be at  3840x2160 pixels. I suspect they might possibly be limited to 1920x1080 pixels or less.  The tests would be relevant for establishing coverage of the DVB-T2 signal in terms of its resistance to interference at different bitrates and at different modulation robustness settings.

Edited by MLXXX

Share this post


Link to post
Share on other sites
1 hour ago, MLXXX said:

I think many current model  Australian TVs are DVB-T2 & HEVC capable. [T2 and HEVC is already used in certain overseas countries.] The more efficient T2 modulation (compared with DVB-T) combined with the more efficient HEVC codec (compared with MPEG-4) would provide the opportunity to carry even more TV services than currently. And it would allow for more services to be carried at 1920x1090 pixels rather than standard definition (720 x 576i).

 

Yes agreed. We have one such 4K UHD TV that is DVB-T2 & HEVC capable.

 

1 hour ago, MLXXX said:

I wonder whether any of the trials will actually be at  3940x2160 pixels. I suspect they might possibly be limited to 1920x1080 pixels or less.  The tests would be relevant for establishing coverage of the DVB-T2 signal in terms of its resistance to interference at different bitrates and at different modulation robustness settings.

Also agree. The trial will certainly be about establishing coverage of the DVB-T2 signal in terms of its resistance to interference at different bitrates and at different modulation robustness settings.

 

The press release from BA who are conducting the trial only say that DVB-T2 will have the potential to allow 4K TV reception. Doesn't say they will be doing anything with 4K and the title of their press release is "Free TV and Broadcast Australia partner on next generation TV trials".

 

Quote

The trial will assess the performance of next generation DVB-T2 technologies in the Australian environment. DVB-T2 is being considered as a technology to replace the current DVB-T standard for television delivery in the medium term. When combined with new compression technologies, DVB-T2 will have the potential to allow 4K TV reception—four times the picture quality of the current high definition standard.

 

As a side note, we watch much more stuff on Netflix than FTA. The picture and sound quality is much higher than that provided by FTA, not to mention the actual content on offer.

Edited by bizzibee

Share this post


Link to post
Share on other sites


2 hours ago, MLXXX said:

The fact that free to air news services still seem to use Electronic News Gathering footage so much only in standard definition, and apparently get away with it with the public, makes me wonder how keen networks would be to broadcast in 4K. 

This is almost the point I was trying to make.

 

... by the time broadcasters are really ready to completely leave the HD generation, then the higher rate of UHD will be popular (8K).    If we don't get our next broadcast TV standard right, then we will need to change again to accomodate 8K.

 

It would be like if we had of put in our first digital TV standard and it could only accomodate 576 and 720.

Share this post


Link to post
Share on other sites

Hmm ; says a lot of how serious they are about picture quality when they could implement as interim or otherwise HLG HDR which can be accepted by both hd and uhd displays and improve the later :winky: Just need a firmware upgrade for those UHD tvs that cant accept it natively.

A long wait indeed based on the history for dvb t2 ; be lucky to get dd+ with it let alone ddtruehd ; forget atmos or dts-x ^_^

Share this post


Link to post
Share on other sites

Someone uploaded a video of the test loop to youtube with the following comments.

Quote

 

First FTA 1080p channel in Australia, as far as I know. Also using HEVC (H.265).

I would think very few people can actually receive this transmission. DVB-T2 already knocks out a large portion of receivers, HEVC knocks out even more.

 

 

https://forums.mediaspy.org/t/hd-broadcasting/279/1543

 

So they are testing both 1080p, DVB-T2 & MPEG-H HEVC (H.265).

 

Found this link in this post:

 

https://forums.whirlpool.net.au/forum-replies.cfm?t=2590708&p=54#r1077

 

 

Edited by bizzibee

Share this post


Link to post
Share on other sites

As reported on Whirlpool, there are now three LCNs. 401 = 4K, 402 = 1080p, 403 = 540p.

 

They have a 4K Demo running currently.

 

From the 4K transmissions, here are screenshots from:

 

9 4K:
https://i.imgur.com/02RzIln.jpg

ABC 4K:
https://i.imgur.com/VWCUk35.jpg

SBS 4K:
https://i.imgur.com/G6mUbJw.jpg

NITV 4K:
https://i.imgur.com/vx1srv7.jpg

 

Here's the demo loop uploaded to YouTube in its original 4K resolution. This was uploaded in 4K, but YouTube only seems to have made it available in 1080p.The SBS section had to be edited out due to a copyright claim from FIFA.

 

 

 

The two "Test" licenses (10424871/1 and 10402649/1) expired on 30th June.

 

https://web.acma.gov.au/rrl/licence_search.licence_lookup?pLICENCE_NO=10402649/1

 

https://web.acma.gov.au/rrl/licence_search.licence_lookup?pLICENCE_NO=10424871/1

 

 

Media Releases from DVB, BA & Free TV regarding the trial:

 

https://www.dvb.org/news/dvb_t2-trials-launched-in-australia

 

https://www.broadcastaustralia.com.au/free-tv-and-broadcast-australia-partner-on-next-generation-tv-trials/

 

http://www.freetv.com.au/content_common/pg-free-tv-and-broadcast-australia-partner-on-next-generation-tv-trials.seo

 

 

So of you might find this Technical Analysis: DVB-T2 Australian Television Networks Test Transmission of some interest:

 

http://goughlui.com/2018/05/30/analysis-dvb-t2-australian-television-networks-test-transmission/

 

Edited by bizzibee

Share this post


Link to post
Share on other sites


1 hour ago, bizzibee said:

This was uploaded in 4K, but YouTube only seems to have made it available in 1080p

 

I can see 4K

Share this post


Link to post
Share on other sites

It's just more useless bullshit when there's no Fta here at all anyway. 

Share this post


Link to post
Share on other sites
3 hours ago, bizzibee said:

TV

Thanks for this.

 

I think the linked writeup makes a good point, and what I was trying to get at earlier in the thread.   It's going to take ~a decade to transition to this if history is anything to go by.    Is ~33mbps going to be enough by then?   Will their be really enough spectrum? ... and assuming both are 'unlikely', then what will the outcome be?   Transition to something else? ....  We could use the NBN for IP multicast, but by then it will have been sold off so the little people don't see the profit.

 

All said, likely a worthwhile move .... but hopefully not 'as good as it gets' before 2030.

Edited by davewantsmoore

Share this post


Link to post
Share on other sites


2 hours ago, davewantsmoore said:

?

Only 'free' if I pay to receive satellite. 

No terrestrial coverage. 

Only live on the eastern seaboard of this apparently 'advanced ' nation. 

Share this post


Link to post
Share on other sites
4 hours ago, davewantsmoore said:

I can see 4K

OK well I think it depends on your Internet Service and available bandwidth. I can only see 1080p50

 

Edited by bizzibee

Share this post


Link to post
Share on other sites
2 hours ago, davewantsmoore said:

Thanks for this.

 

I think the linked writeup makes a good point,

You're most welcome. 🙂

 

Yes the Technical Analysis of the Test Transmission I linked to is a good read. It provides some good Technical info and makes some good points & observations.

Edited by bizzibee

Share this post


Link to post
Share on other sites
52 minutes ago, eman said:

Only 'free' if I pay to receive satellite. 

No terrestrial coverage. 

Only live on the eastern seaboard of this apparently 'advanced ' nation. 

So, you pay for a VAST compatible box and a dish ... but then you don't have to pay ongoing to receive the service.  Just like everyone else.

 

What have I missed?  Seems 'suitably advanced'.

Share this post


Link to post
Share on other sites


Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...