Has there been a TVNZ upgrade?

Forums › Sky, Neon › Has there been a TVNZ upgrade?

trig42

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Topic # 65628 4-Aug-2010 19:19

I just noticed the audio on TV One and 2 coming out of my My Sky is Dolby Digital. I'm certain it used to be PCM.

Does this mean they will also go to 1080 (like TV3)? I have no way of checking that at the moment.

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Reply # 363349 4-Aug-2010 22:58

Dont think they intend to move from 720p, but someone at ground zero in Hobson St posted here awhile ago saying that once they have their new HD switcher and server based system finally installed (indicated it was in final test a few weeks back) then they finally could do DD, so maybe thats happend.

Cyril

dontpanic42

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Reply # 363366 4-Aug-2010 23:46

Just had a quick look, and TV1 and 2 are still broadcasting crappy HE-AAC audio on FreeviewHD. Lets hope DD comes soon!!

cyril7

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Reply # 363489 5-Aug-2010 09:51

Just checked my MySky, TV1 and 2 are still in mpeg, but thats not to say it will stikeup in DD on advertised programs, where did you get your info.

Cyril

trig42

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Reply # 363524 5-Aug-2010 10:35

My receiver tells me what audio it is receiving over Coax Digital.
Looking at it, it only says Dolby Digital 2.0, not 5.1 (like TV3) - it used to say PCM. Hopefully they give us 5.1 soon. I'm not too concerned about 1080i over 720p (I can't really tell the difference, they both look good)

trig42

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Reply # 363837 5-Aug-2010 19:12

Just got home, and my receiver is showing PCM on 1 and 2 again.

Strange.

dontpanic42

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Reply # 363840 5-Aug-2010 19:15

Isn't there an option on MySki to set it to output in PCM? Maybe that has been set somehow?

trig42

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Reply # 364153 6-Aug-2010 11:51

Yeah, there is, but nothing has been fiddled with on the MySky (my wife wouldn't go near it) and TV3 shows as DD5.1. On Wednesday TV1 and 2 were showing as DD2.0, now they are showing as PCM 2.0 again (which is what they normally have shown as).

Maybe they were testing something?

bfginger

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Reply # 364169 6-Aug-2010 12:09

It would be sensible for them to move TV2 to 1080i.

openmedia

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Reply # 364427 6-Aug-2010 20:24

bfginger: It would be sensible for them to move TV2 to 1080i.

Because?

Generally known online as OpenMedia, now working for Red Hat New Zealand as a Solution Architect for all things Linux, Virtual and of course Cloud. Still playing with MythTV and digital media on the side.

pjamieson

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Reply # 365067 8-Aug-2010 18:14

I agree about TVNZ moving to 1080i. I'd rather have twice the pixels than the framerate they have now. Progressive is suited towards sport, so i think they made the format decision based on broadcasting the Olympics rather than their normal programming they have now.

How hard is it for a broadcaster to change their HD Format???

cyril7

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Reply # 365069 8-Aug-2010 18:16

Hi, dont know how hard it would be, but it would not be a decision taken lightly. Personally having MySky with the HD ticket (as a result of multiroom) and seeing a lot of sport in HD at 1080i I personally dont see any issues, looks damn fine from my chair.

Cyril

hdinsider

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Reply # 365620 9-Aug-2010 20:39

It would be easy to change HD format from 720p to 1080i. A cross-converter would probably be in circuit already. But I think 1080i would require more bandwidth to maintain the same picture quality.

I heard a story that some years back, an Australian broadcaster that had chosen 720p was testing a spare encoder at 1080i and that it accidentally ended up on air. Once they noticed what had happened (apparently a few days later!) they just decided to stay 1080i

1920 x 1080 = 2073600
v
1280 x 720 = 921600

How many pixels would you prefer?

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Dingbatt

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Reply # 365764 10-Aug-2010 08:58

hdinsider: It would be easy to change HD format from 720p to 1080i. A cross-converter would probably be in circuit already. But I think 1080i would require more bandwidth to maintain the same picture quality.

I heard a story that some years back, an Australian broadcaster that had chosen 720p was testing a spare encoder at 1080i and that it accidentally ended up on air. Once they noticed what had happened (apparently a few days later!) they just decided to stay 1080i

1920 x 1080 = 2073600
v
1280 x 720 = 921600

How many pixels would you prefer?

Don't you need to factor in the interlace bit?

1920 x 1080 x 25 = 51840000
vs
1280 x 720 x 50 = 46080000

Or does that only matter for data rate?

The scaler in my tele is good enough that I can't really tell the difference.

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neoprint

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Reply # 365903 10-Aug-2010 16:18

There's more to it than just the amount of pixels, being interlaced there's only 540 lines of information per field, there's interlacing artifacts, kell loss, and then artifacts from where the TV deinterlaces it so it can display it (assuming you're using a LCD/Plasma etc that's natively progressive)

hdinsider

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Reply # 368380 16-Aug-2010 21:36

Anyone know when TV1 or TV2 are going Dolby 5.1? They must have a date target in mind. Looking forward to Coro St in surround!

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