What is the bitrate of Free to Air SD TV?

[Ext User(yeltz)]

I am currently using a Humax PVR-8000T SD box to view FTA television in
Perth. I am not happy with the quality of the FTA broadcasts, there's
too much blockiness in fast motion scenes (AFL football, action movies)
and colour banding when there's too much of one colour on the screen
(Golf). These are all symtoms of low bitrates being used to encode the
footage.

Does anybody know what bitrate is used for FTA Standard Definition in
Australia?

Thanks.

[Ext User(Justin)]

yeltz wrote:
> I am currently using a Humax PVR-8000T SD box to view FTA television in
> Perth. I am not happy with the quality of the FTA broadcasts, there's
> too much blockiness in fast motion scenes (AFL football, action movies)
> and colour banding when there's too much of one colour on the screen
> (Golf). These are all symtoms of low bitrates being used to encode the
> footage.
>
> Does anybody know what bitrate is used for FTA Standard Definition in
> Australia?
>

It varies, but it's generally between 6-8 megabits/sec.

[Ext User(Anthony Horan)]

On Mon, 03 Apr 2006 16:30:26 +1000, Justin wrote:

> yeltz wrote:
>>
>> Does anybody know what bitrate is used for FTA Standard Definition in
>> Australia?
>
> It varies, but it's generally between 6-8 megabits/sec.

Actually 7 megabits is as high as it gets on SD here - and that's only on
channel 10. The others hover around 6 except for ABC2 which is at 4.5 (and
of course the useless "guide" channels which sit at around 1.5 to 2!)

[Ext User(Bounty Bob)]

Anthony Horan wrote:
> On Mon, 03 Apr 2006 16:30:26 +1000, Justin wrote:
>
>> yeltz wrote:
>>> Does anybody know what bitrate is used for FTA Standard Definition in
>>> Australia?
>> It varies, but it's generally between 6-8 megabits/sec.

> Actually 7 megabits is as high as it gets on SD here - and that's only on
> channel 10. The others hover around 6 except for ABC2 which is at 4.5 (and
> of course the useless "guide" channels which sit at around 1.5 to 2!)

I've found when demuxing stuff from sbs 1 with project x that
the rate wildly varies but is mostly under 5 megabits. Certainly
of the 5 primary channels I record off mostly the files are always
much smaller from SBS Melbourne.

EG currently on my mythbox
a film from 10 2 hours 45 minutes 8.9GB
a film from sbs 2 hours 30 minutes 4.9GB!

[Ext User(Anthony Horan)]

On Mon, 03 Apr 2006 19:05:36 +1000, Bounty Bob wrote:

> I've found when demuxing stuff from sbs 1 with project x that
> the rate wildly varies but is mostly under 5 megabits.

SBS uses a variable bitrate while the other networks don't.

[Ext User(KB)]

Bounty Bob wrote:
> Anthony Horan wrote:
>> On Mon, 03 Apr 2006 16:30:26 +1000, Justin wrote:
>>
>>> yeltz wrote:
>>>> Does anybody know what bitrate is used for FTA Standard Definition in
>>>> Australia?
>>> It varies, but it's generally between 6-8 megabits/sec.
>
>> Actually 7 megabits is as high as it gets on SD here - and that's only on
>> channel 10. The others hover around 6 except for ABC2 which is at 4.5
>> (and
>> of course the useless "guide" channels which sit at around 1.5 to 2!)
>
> I've found when demuxing stuff from sbs 1 with project x that
> the rate wildly varies but is mostly under 5 megabits. Certainly
> of the 5 primary channels I record off mostly the files are always
> much smaller from SBS Melbourne.
>
> EG currently on my mythbox
> a film from 10 2 hours 45 minutes 8.9GB
> a film from sbs 2 hours 30 minutes 4.9GB!

Yeah, that's because Channel 10 SD is broadcast with an average 7 Mbps
video rate and 256 kbps audio.
SBS Digital 1 has the lowest primary channel bit rate of all
broadcasters at 5 Mbps video and 192 kbps audio.
I assume that's because ethnic people wouldn't notice inferior image
quality......

[Ext User(dogrooter)]

"Justin" <justinnospam@dontspamme.com.au> wrote in message
news:4430c102$0$20112$afc38c87@news.optusnet.com.a u...
> yeltz wrote:
>> I am currently using a Humax PVR-8000T SD box to view FTA television in
>> Perth. I am not happy with the quality of the FTA broadcasts, there's
>> too much blockiness in fast motion scenes (AFL football, action movies)
>> and colour banding when there's too much of one colour on the screen
>> (Golf). These are all symtoms of low bitrates being used to encode the
>> footage.
>>
>> Does anybody know what bitrate is used for FTA Standard Definition in
>> Australia?
>>
>
> It varies, but it's generally between 6-8 megabits/sec.

May be symptoms a low bit rate but not necessarily just to do with the
actual broadcast of the signal.
The footage can quite possibly be sub-standard even before it was broadcast.
Another cause could be that the STB is of poor quality. (not saying that
yours is, just one possibility)


Keith

[Ext User(Mike)]

Bounty Bob wrote:

> EG currently on my mythbox
> a film from 10 2 hours 45 minutes 8.9GB
> a film from sbs 2 hours 30 minutes 4.9GB!

Yes, but it evens out once you edit out the commercials on 10.

[Ext User(Andy)]

I'm in Perth and don't get that. The bitrate on SD recordings with my Compro
T300 card is generally 6400. I think it was the same when I uploaded from my
LegendDigital PVR but if I record it from there in analogue it's only 6000.

Andy

"yeltz" <yeltzin_4@hotmail.com> wrote in message
news:1144031939.974333.101670@z34g2000cwc.googlegr oups.com...
>I am currently using a Humax PVR-8000T SD box to view FTA television in
> Perth. I am not happy with the quality of the FTA broadcasts, there's
> too much blockiness in fast motion scenes (AFL football, action movies)
> and colour banding when there's too much of one colour on the screen
> (Golf). These are all symtoms of low bitrates being used to encode the
> footage.
>
> Does anybody know what bitrate is used for FTA Standard Definition in
> Australia?
>
> Thanks.
>

[Ext User(Malcolm Taylor)]

"Mike" <mike.n@nospam-westnet.com.au> wrote in message
news:44331737@quokka.wn.com.au...
> Bounty Bob wrote:
>
>> EG currently on my mythbox
>> a film from 10 2 hours 45 minutes 8.9GB
>> a film from sbs 2 hours 30 minutes 4.9GB!
>
> Yes, but it evens out once you edit out the commercials on 10.

SBS has a much lower bit rate than the others. Ten is the highest, with
about 3.3GB per hour, Seven and ABC about 3.0, Nine about 2.8 (at least in
Adelaide).

[Ext User(biteme)]

On Mon, 03 Apr 2006 21:04:43 +1000, KB <KB@no.spam.here> wrote:

>Bounty Bob wrote:
>> Anthony Horan wrote:
>>> On Mon, 03 Apr 2006 16:30:26 +1000, Justin wrote:
>>>
>>>> yeltz wrote:
>>>>> Does anybody know what bitrate is used for FTA Standard Definition in
>>>>> Australia?
>>>> It varies, but it's generally between 6-8 megabits/sec.
>>
>>> Actually 7 megabits is as high as it gets on SD here - and that's only on
>>> channel 10. The others hover around 6 except for ABC2 which is at 4.5
>>> (and
>>> of course the useless "guide" channels which sit at around 1.5 to 2!)
>>
>> I've found when demuxing stuff from sbs 1 with project x that
>> the rate wildly varies but is mostly under 5 megabits. Certainly
>> of the 5 primary channels I record off mostly the files are always
>> much smaller from SBS Melbourne.
>>
>> EG currently on my mythbox
>> a film from 10 2 hours 45 minutes 8.9GB
>> a film from sbs 2 hours 30 minutes 4.9GB!
>
>Yeah, that's because Channel 10 SD is broadcast with an average 7 Mbps
>video rate and 256 kbps audio.
>SBS Digital 1 has the lowest primary channel bit rate of all
>broadcasters at 5 Mbps video and 192 kbps audio.
>I assume that's because ethnic people wouldn't notice inferior image
>quality......


In Aus, the bandwidth of the broadcast digital signal is 7MHz so that
max you would get is 7Mb/s. If broadcaster is using VBR, then only
need max encoding for sports, lots of motion content, for normal tv
shows you could probably go as low as 700Kb/s. Satellite would be
different but could be as high as 12Mb/s.

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[Ext User(Anthony Horan)]

On Sun, 09 Apr 2006 14:23:03 +0930, biteme wrote:

> In Aus, the bandwidth of the broadcast digital signal is 7MHz so that
> max you would get is 7Mb/s.

Bzzt. Sorry, thanks for playing.

> for normal tv shows you could probably go as low as 700Kb/s.

Oh dear. Ohhh dear. Clue please.

[Ext User(Dyna Soar)]

biteme wrote:

> In Aus, the bandwidth of the broadcast digital signal is 7MHz so that
> max you would get is 7Mb/s.

Wow.. Talk about getting it completely wrong.
Obviously, you've either never heard of, or don't understand, 64QAM COFDM
modulation.
Have a look at this, http://www.dba.org.au/index.asp?sectionID=120 shows
data rates between 19 and 23 Mb/s. Of course, this is the total data rate,
SD occupies about 1/4 to 1/3 of this..

--
Dyna

All Rights Reserved. All Wrongs Avenged.

[Ext User(biteme)]

On Sun, 9 Apr 2006 15:35:38 +1000, fuckwad Anthony Horan
<anthonyhoran@hotmail.com> spewed with extreme ignorance:

>On Sun, 09 Apr 2006 14:23:03 +0930, biteme wrote:
>
>> In Aus, the bandwidth of the broadcast digital signal is 7MHz so that
>> max you would get is 7Mb/s.
>
>Bzzt. Sorry, thanks for playing.
>
>> for normal tv shows you could probably go as low as 700Kb/s.
>
>Oh dear. Ohhh dear. Clue please.

Oh look another idiot for the kill file. If you onlyhad a clue about
the spectrum allocation.... moron.. stop dragging your knuckles on
the ground retard.

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[Ext User(Anthony Horan)]

On Mon, 10 Apr 2006 04:17:03 +0930, biteme wrote:

> On Sun, 9 Apr 2006 15:35:38 +1000, fuckwad Anthony Horan
> <anthonyhoran@hotmail.com> spewed with extreme ignorance:
>
>>On Sun, 09 Apr 2006 14:23:03 +0930, biteme wrote:
>>
>>> In Aus, the bandwidth of the broadcast digital signal is 7MHz so that
>>> max you would get is 7Mb/s.
>>
>>Bzzt. Sorry, thanks for playing.
>>
>>> for normal tv shows you could probably go as low as 700Kb/s.
>>
>>Oh dear. Ohhh dear. Clue please.
>
> Oh look another idiot for the kill file. If you onlyhad a clue about
> the spectrum allocation.... moron.. stop dragging your knuckles on
> the ground retard.

A pathetic attempt at abuse from someone who does NOT KNOW WHAT THEY ARE
TALKING ABOUT.

Your so-called "clue" about spectrum allocation is so very far off the mark
it's pure comedy. But hey, keep deluding yourself.

[Ext User(Dyna Soar)]

biteme wrote:
> fuckwad Anthony Horan spewed with extreme ignorance:

LOL. Great, ain't it. Bitme screws up and when Anthony calls him on,
somehow Anthony is a "fuckwad who's extremely ignorant". Yeah, right...

>> biteme wrote:

>>> In Aus, the bandwidth of the broadcast digital signal is 7MHz so
>>> that max you would get is 7Mb/s.

>> Bzzt. Sorry, thanks for playing.

>>> for normal tv shows you could probably go as low as 700Kb/s.

>> Oh dear. Ohhh dear. Clue please.

> Oh look another idiot for the kill file. If you onlyhad a clue about
> the spectrum allocation.... moron.. stop dragging your knuckles on
> the ground retard.

It wasn't your figure for spectrum allocation he picked, it was your stupid
incorrect assertion that 7 MHz spectrum bandwidth equated to 7 Mb/s data
rate. And *you* call *him* an idiot, clueless, a moron and a retard. Must
be a huge mirror you're looking into...

As Rod Speed would say, "Wota wanka!"

--
Dyna

All Rights Reserved. All Wrongs Avenged.