HD Freeview on TV with a standard Freeview tuner
 

On 21 Dec., 16:23, (Brian Mc) wrote:
Brian Mc wrote:

: : Will there be any HD channels that will have different programmes, not
: : available on standard definition channels?

: Not likely! The ONLY broadcasters who are likely to be able to offer
: non-subscription HD channels in the near future will be simulcasting.

I am being stupid! The obvious (and so far ONLY!) exception is BBCHD - which
is NOT a simulcast of anything.

It has just been announced that NI will get
an extra low capacity DVB-T2 MUX with
RTE1, RTE2 and TG4.
http://www.dtg.org.uk/dtg/press_release.php?id=27

DVB-T simulcast will only be in the ROI
and it will be with MPEG-4 compression.

Before you know, more muxes with both
SD and HD will use DVB-T2 in the rest
of the UK.

Lars :)

HD Freeview on TV with a standard Freeview tuner
 

On 21 Dec., 18:25, "divoch" wrote:
"charles" wrote in message

...



In article ,
* divoch wrote:

"Mark" wrote in message
. ..
On Mon, 20 Dec 2010 15:08:54 +0000 (UTC), J G Miller
wrote:

On Mon, 20 Dec 2010 12:35:36 +0000, Peter Duncanson wrote:

SD is broadcast using the DVB-T standard. HD uses the DVB-T2
standard.
An SD Freeview box can handle only DVB-T (SD) material. It will
ignore
DVB-T2 (HD) stuff. It has no means of "decoding" it.

You are confusing two issue here -- tuning and decoding.

A standard SD Freeview receiver does ignores the DVB-t2 transmissions
because it cannot receive the DVB-t2 format of the transmission.

It is only after the signal has been processed by the tuner that the
HD multiplex video stream encoded in MPEG-4 (h.264 codec) is decoded..

So to summarize:

Freeview SD is *DVB-t transmission with MPEG-2 encoding.

Freeview HD is *DVB-t2 transmission with MPEG-4 encoding.

Other European countries current broadcast terrestrial HDTV with DVB-t
transmission but MPEG-4 encoding.

Saorview uses this format for both SD and HD transmissions.

* * * * http://www.saorview.IE

And when they switch off the DVD-T tranmissions we'll all have to
chuck away all those STBs. *There's progress.
--
(\__/) *M.
(='.'=) Due to the amount of spam posted via googlegroups and
(")_(") their inaction to the problem. I am blocking some articles
posted from there. *If you wish your postings to be seen by
everyone you will need use a different method of posting.

So, when the sales rep in the shop claimed that if I buy new TV now, that
has only standard Freeview receiver, *I shall be able to watch Freeview
HD channels (although not in HD) he was talking nonsense. Correct? Will
there be any HD channels that will have different programmes, not
available on standard definition channels? If there were then it would
make it rather more painful to buy TV now. *As far as I can tell there
are not many small screen TVs with HD Freeview decoder on sale right now.

It is always possible that the set is able to download the necessary
decoding software.
Not sure of the benefit of HD on a small screen set, though.

--

My main concern is that I shall not be able to see all the programmes
transmitted on all the channels and that some HD channels may have
programmes not transmitted on standard channels. Even on a smaller TV I
would like to be able to see all the available programmes whether they are
transmitted HD or not.

This is exactly, what will be your
problem.
Not (very often) with the main channels
BBC1, ITV, C4, but already now with
BBC HD.
Mybe not when BBC2-HD one day
will be launched.
But the cost of simulcast is high and
unlikely to be sustainable.
There will not be any new DVB-T muxes in the UK

I find it very likely that at least one of
the COM muxes will change to DVB-T2/MPEG-4
before the Olympics in July/August 2012.
At that time the year 2010, 2011 and 2012 TV models
have been available with DVB-T2 tuners.

Lars :)