High Defination. Whats the Minium Bitrate and Resolution t..

Archived from groups: alt.tv.tech.hdtv (More info?)

I see plasmas with 1024by768 resolutions and they say they are HD. Ive
got a HD 86cm CRT and i have my TV set at 1920by1080 at 60htz. WHich i
asume is realy HD

I ask this question as i want to record some TV and want HD quality.
And be concidered HD. And maybe convet it to Divx 6 or WMV HD.

Thanks.

Archived from groups: alt.tv.tech.hdtv (More info?)

How about the biterate. 4mbs or higher. Resolution aint all of it. If
you donthave the data no matter how high the resolution the picture
wont be that good.


On Fri, 15 Jul 2005 14:40:08 -0400, "Son of man"
<sonofman1@comcast.net> wrote:

>"Son Of Sheep." <sheep.com.au> wrote in message
>news:e20gd1lkn1d09enekpa83bmuhlg44js9hq@4ax.com...
>>
>>
>> I see plasmas with 1024by768 resolutions and they say they are HD. Ive
>> got a HD 86cm CRT and i have my TV set at 1920by1080 at 60htz. WHich i
>> asume is realy HD
>>
>> I ask this question as i want to record some TV and want HD quality.
>> And be concidered HD. And maybe convet it to Divx 6 or WMV HD.
>
>To be HD, it must have a 16:9 aspect ratio, and either be 1280 pixels
>accross x 720 vertical at a progressive rate of 60 full frames per sec.
>
>or
>
>1920 accross x 1080 lines at an interlaced rate of 60. Interlaced means it
>draws the even lines in one frame and then the odd lines in the next frame.
>So it does not do 60 full frames per second, gives the illusion of doing so.
>
>I prefer the higher resolution of 1080 interlaced.
>
>>
>> Thanks.
>>
>

Archived from groups: alt.tv.tech.hdtv (More info?)

OZ is doing OK as to HD sources. Here is an HD schedule for OZ. They are
the only country in the world where HD is mandated.

http://www.widescreentv.com.au/program.html

Bob Miller

ZVR wrote:
> I think you need to ask yourself how you're going to record the HD stream,
> and not what type of TV you have. You can't record an HD stream directly
> from TV... I know of no set that allows that. You need a cable box with
> Firewire output and a Firewire-enabled HD capture device (recorder/PC card).
>
> Speaking about that... what kind of HDTV sources do you guys have in
> Australia. If your TV is a true HDTV set, it doesn't necessarily mean you
> are watching HDTV, it might be a SD (standard definition) source
> up-converted by your set to HDTV-resolution.... but that is as different
> from a true HDTV picture as night from day.
>
>
>
>
>
> "Son Of Sheep." <sheep.com.au> wrote in message
> news:i05gd1h0psdlv5e3amikt3fk79j71do538@4ax.com...
>
>>
>>
>>How about the biterate. 4mbs or higher. Resolution aint all of it. If
>>you donthave the data no matter how high the resolution the picture
>>wont be that good.

Archived from groups: alt.tv.tech.hdtv (More info?)

They see 1080i, 720P and 576P which is considered HD in OZ. They are
having a debate at the moment about canceling the HD mandate since most
people are buying SD digital receivers. PAL widescreen looks pretty good
on most sets.

They are triplecasting at the moment. HD, SD and analog PAL. So they
could be watching 1080i, 720P, 576P, or 576i digital on an analog set or
576i analog on an analog set.

Right from the beginning the controversy in OZ was the exact opposite as
in the US. Since HD was mandated and datacasting and multicasting was
all but forbidden many argued against HD and for multicasting and
datacasting. The argument continues with it looking more like the HD
mandate will be rescinded.

Many in OZ consider their digital transition a bust since they have only
sold 800,000 digital receivers but that is far more percentage wise than
in the US. They only have 19 million citizens. More people seem to want
multicasting of different views of a soccer game than want HD.

And since they have such a small market everything cost more HD so far.

Bob Miller

ZVR wrote:
> Do they use the same formats/transport streams as here in North America?
> Just curious...
>
>
> "Bob Miller" <robmx@earthlink.net> wrote in message
> news:MF0Ce.5668$BK1.1553@newsread3.news.pas.earthlink.net...
>
>>OZ is doing OK as to HD sources. Here is an HD schedule for OZ. They are
>>the only country in the world where HD is mandated.
>>
>>http://www.widescreentv.com.au/program.html
>>
>>Bob Miller
>>
>>ZVR wrote:
>>
>>>I think you need to ask yourself how you're going to record the HD
>>>stream, and not what type of TV you have. You can't record an HD stream
>>>directly from TV... I know of no set that allows that. You need a cable
>>>box with Firewire output and a Firewire-enabled HD capture device
>>>(recorder/PC card).
>>>
>>>Speaking about that... what kind of HDTV sources do you guys have in
>>>Australia. If your TV is a true HDTV set, it doesn't necessarily mean you
>>>are watching HDTV, it might be a SD (standard definition) source
>>>up-converted by your set to HDTV-resolution.... but that is as different
>>>from a true HDTV picture as night from day.
>>>
>>>
>>>
>>>
>>>
>>>"Son Of Sheep." <sheep.com.au> wrote in message
>>>news:i05gd1h0psdlv5e3amikt3fk79j71do538@4ax.com...
>>>
>>>
>>>>
>>>>How about the biterate. 4mbs or higher. Resolution aint all of it. If
>>>>you donthave the data no matter how high the resolution the picture
>>>>wont be that good.
>
>
>

Archived from groups: alt.tv.tech.hdtv (More info?)

On Wed, 20 Jul 2005 13:43:51 +1000 Son Of Sheep. <sheep.com.au> wrote:

| I can record an 8 mbs 1080i video dirrectly to my harddisk. why cant
| you ?

8 mbps sounds rather squishy to me. What compression are you using?
How fuzzy is it?

One full frame of 1080i (2 scans since it is interlace) would need over
31 million bits to encode at 4:1:1 x 10. And that's just one frame
before compression. Multiply by 25 or 29.97 or 30 as appropriate, then
do the compression. Of course there will be difference of opinion on
just how much loss is too much loss. If the playback of that 8 mbps
looks fine to you, do it. I'll withhold judgement until I can see it.

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