BBC HD Simulcast

On Tue, 10 Nov 2009 11:03:06 -0000, "Jeff Layman"
wrote:

wrote:
On Mon, 9 Nov 2009 10:12:56 -0000, "Jeff Layman"
wrote:

Last week there was a programme (I can't remember which) transmitted as a
simulcast. I was surprised to see that the HD prog was nearly 2 minutes
delayed compared to the SD. I'd always assumed that a simulcast was just
that, with perhaps only a second or two delay due to encoding
differences. However the 2 minute delay would suggest different
recordings being used for the transmissions. I guess it makes sense as
the BBC HD channel is not a copy of BBC1 or 2, and perhaps its programme
timings can vary. I so, why bother with the term "simulcast"? Why not
just "also available on BBC HD"?

1. Is it actually *claimed* to be 'Simulcast'?
I haven't checked but ISTR the programmes are just listed as "also
broadcast on BBC HD"

Yes - see my reply to Housetrained above.

OK!
I don't read Radio Times, was going by on-air references when a BBC1
programme is about to be shown on BBC HD.


2. Does it really matter?

Probably not. I just associate "Simultaneous broadcast" with eg TV and
radio having the same programme at exactly the same time (such as The
Proms). I see that the term was first used in 1948!
(http://www.aolsvc.merriam-webster.ao...nary/simulcast)

The EPG seems to set the correct times for each channel.

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On Mon, 9 Nov 2009 10:12:56 -0000, "Jeff Layman"
wrote:

Last week there was a programme (I can't remember which) transmitted as a
simulcast. I was surprised to see that the HD prog was nearly 2 minutes
delayed compared to the SD. I'd always assumed that a simulcast was just
that, with perhaps only a second or two delay due to encoding differences.
However the 2 minute delay would suggest different recordings being used
for
the transmissions. I guess it makes sense as the BBC HD channel is not a
copy of BBC1 or 2, and perhaps its programme timings can vary. I so, why
bother with the term "simulcast"? Why not just "also available on BBC
HD"?

1. Is it actually *claimed* to be 'Simulcast'?
I haven't checked but ISTR the programmes are just listed as "also
broadcast on BBC HD"

2. Does it really matter?

It does when you have the same progamme playing from different sources on
TVs in adjacent rooms. The out-of-sync sound can be very frustrating to hear
in the background.

brianf

"brianf" wrote in message
...

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news
On Mon, 9 Nov 2009 10:12:56 -0000, "Jeff Layman"
wrote:

Last week there was a programme (I can't remember which) transmitted as a
simulcast. I was surprised to see that the HD prog was nearly 2 minutes
delayed compared to the SD. I'd always assumed that a simulcast was just
that, with perhaps only a second or two delay due to encoding
differences.
However the 2 minute delay would suggest different recordings being used
for
the transmissions. I guess it makes sense as the BBC HD channel is not a
copy of BBC1 or 2, and perhaps its programme timings can vary. I so, why
bother with the term "simulcast"? Why not just "also available on BBC
HD"?

1. Is it actually *claimed* to be 'Simulcast'?
I haven't checked but ISTR the programmes are just listed as "also
broadcast on BBC HD"

2. Does it really matter?

It does when you have the same progamme playing from different sources on
TVs in adjacent rooms. The out-of-sync sound can be very frustrating to
hear in the background.

brianf

If you receive the same channel in two rooms on different receivers the
sound rarely matches.

Gary

In article ,
brianf wrote:
It does when you have the same progamme playing from different sources
on TVs in adjacent rooms. The out-of-sync sound can be very frustrating
to hear in the background.

You'll get that with two FreeView sets. Or different types of set - many
delay the sound to sync up with the delay their display introduces.

--
*Never underestimate the power of stupid people in large groups

Dave Plowman London SW
To e-mail, change noise into sound.