Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


112 posts

Master Geek

#16674 23-Oct-2007 01:31
Send private message

Woeful ignorance here - but is Singapore headed down our DVB-T path - but just a few months ahead ?

From what I can see, they are rolling out a H.264/AVC (MPEG4) DVB-T service - although they choose to use 1080i.

I don't know nearly enough to guess if our choice of 720p will preclude common DTBs - or if there are other parameters which 'specialise' our Freeview service. (I believe I understand why we've chosen 720p and I'm not questioning that decision.)

Who's using this format now ? I believe Norway is and that those planning or thinking about it include Germany, Korea, HK, Russia, Ukraine & Lithuania. But I don't know if they are just similar - or identical - in specification to what we shall have ?

I find it confusing that the DVB-T 'standard' includes both MPEG2 and H.264 and that the compression used is seldom qualified when saying that a service uses 'the standard DVB-T'. Possibly this is a temporary aberation and it will become the norm to distinguish the compression used. (I think back to USB and USB2 in USB2's early days - before people insisted on designating the lesser version as USB1.1).

Anyone who can straighten me out ?


Create new topic
7307 posts

Uber Geek


  #92008 23-Oct-2007 08:27
Send private message

The DVB standards recently(3-4yrs ago) added the mpeg4 H.264/AVC option that most broadcasters are now adopting, or intend to adopt in future upgrades. All chipsets that I have seen that support mpeg4 will also support mpeg2, in reality mpeg2 just ends up being one of the many subroutines of mpeg4.

DVB standards do require that all HD STBs support all current SD frames rates/sizes as well as 720p and 1080i, they must be able ot output these natively but may in addition be able to scale between 720p and 1080i, they must support SD downscaling of HD material. The end result is that all mpeg4 STB's must support 720p and 1080i, this is mandatory, the fact that different broadcasters will do one or the other or both is not an issue. As an example SkyUK have most HD channels as 1080i, however the sports channels are 720p (well that was how they ran it 12months ago it may have changed).

All the chipsets that I have seen support a very full feature list of options, essentially if the STB supports mpeg4 H.264/AVC then it will have most bases covered.

Edit, having just checked it would seem that even though SkyUK originally stated they would do 720p on Sports it would seem for now that they have just left things in 1080i.



112 posts

Master Geek

  #92074 23-Oct-2007 15:25
Send private message

Thanks Cyril - very illuminating.

Create new topic

Twitter and LinkedIn »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

New online learning platform for kids stuck at home during COVID-19 lockdown
Posted 26-Mar-2020 21:35

New 5G Nokia smartphone unveiled as portfolio expands
Posted 26-Mar-2020 17:11

D-Link ANZ launches wireless AC1200 4G LTE router
Posted 26-Mar-2020 16:32

Ring introduces two new video doorbells and new pre-roll technology
Posted 17-Mar-2020 16:59

OPPO uncovers flagship Find X2 Pro smartphone
Posted 17-Mar-2020 16:54

D-Link COVR-2202 mesh Wi-Fi system now protected by McAfee
Posted 17-Mar-2020 16:00

Spark Sport opens its platform up to all New Zealanders at no charge
Posted 17-Mar-2020 10:04

Spark launches 5G Starter Fund
Posted 8-Mar-2020 19:19

TRENDnet launches high-performance WiFi Mesh Router System
Posted 5-Mar-2020 08:48

Sony boosts full-frame lens line-up with introduction of FE 20mm F1.8 G large-aperture ultra-wide-angle prime Lens
Posted 5-Mar-2020 08:44

Vector and Spark teamed up on smart metering initiative
Posted 5-Mar-2020 08:42

Schneider Electric launches new PDL Pro Series designed specifically for the commercial building market
Posted 5-Mar-2020 08:39

Kiwi app Pedigree DentaStix Studios uses pet images to counter impact of negative social media Content
Posted 5-Mar-2020 08:32

Samsung expands to New Zealand in 5G Networks Deal with Spark
Posted 5-Mar-2020 08:17

New Vodafone mobile data plans with unlimited data
Posted 26-Feb-2020 06:55

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.