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#1
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Intrigued by some of the posts in this group re Andy Quested. So is he
doing great things for HDTV in the uk or not? Personally I dont understand what he is trying to achieve with half baked HD transmission standards and gold plated HD production standards As for Danielle Nagler Head of HDTV at the BBC I wont waste my breath, it would be too rude to post...... http://hdcampaign.kk5.org/ |
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#2
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"Stewart Phillip" wrote in message ... Intrigued by some of the posts in this group re Andy Quested. So is he doing great things for HDTV in the uk or not? Personally I dont understand what he is trying to achieve with half baked HD transmission standards and gold plated HD production standards As for Danielle Nagler Head of HDTV at the BBC I wont waste my breath, it would be too rude to post...... http://hdcampaign.kk5.org/ Just treat the BBC HD channel as another program in effect call it BBC 5 because to me that's all it is. I'm all fed up of complaining to the BBC about HD pictures and I have concluded to them it does not matter and they not going to change. Regards David |
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#3
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On Nov 9, 1:09*am, Stewart Phillip wrote:
Personally I dont understand what he is trying to achieve with half baked HD transmission standards and gold plated HD production standards I would say Andy is doing everything he possibly can to maximise the quality of HD transmissions, within the constraints he has to work with. Average bit-rate is out of his control, because of 'political' decisions governing platform neutrality (which I happen to agree with) and the number of HD channels which 'the powers that be' have decreed should be carried on Freeview. So all he can do is to get the very most out of the limited bandwidth available. Using the best available encoders is one thing (although obviously that is a moving target) and, yes, "gold plated" HD production standards help because the cleaner the signal you put into the MPEG4 encoder (in terms of noise, aliasing etc.) the better the end result at a given bitrate. The other obvious reason why excellent production standards should always be maintained, irrespective of transmission parameters, is that the programmes will be archived at that high quality and can be made available in other ways (e.g. on BluRay or via some future improved transmission standard). In fact I argue that programmes should be captured at the 1080p/50 standard (full HD resolution at 50 progressive frames per second) and downconverted for transmission, but equipment availability and cost makes that impractical at the moment. Richard. http://www.rtrussell.co.uk/ |
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#4
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Richard Russell wrote:
Average bit-rate is out of his control, because of 'political' decisions governing platform neutrality (which I happen to agree with) I'd agree with neutrality if it was applied to the *ALL* of the BBC's HD channels on *ALL* platforms (AIUI bitrate is higher on DVB-C and non-UK DVB-S than DVB-T2 and UK DVB-S) [snip other stuff I agree with] |
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#5
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On Tuesday, November 9th, 2010 at 03:50:28h -0800, Richard Russell wrote:
because of 'political' decisions governing platform neutrality (which I happen to agree with) If you agree with the fiction of platform neutrality, are you campaigning for the removal of 6 of the BBC interactive streams on satellite so that satellite viewers have the same number, namely one, as on Freeview? |
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#6
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On Nov 9, 1:27*pm, J G Miller wrote:
If you agree with the fiction of platform neutrality, are you campaigning for the removal of 6 of the BBC interactive streams on satellite so that satellite viewers have the same number, namely one, as on Freeview? No, I specifically meant in terms of picture quality, not availability of channels or services. Everybody understands that the limited capacity of terrestrial transmission will limit *quantity*, but I don't think it should restrict *quality*. I would prefer that any given channel has identical quality whatever the 'mainstream' delivery method (and to the extent that isn't currently true, it does weaken the BBC's position). Richard. http://www.rtrussell.co.uk/ |
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#7
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On Tue, 9 Nov 2010 05:53:26 -0800 (PST), Richard Russell
wrote: I would prefer that any given channel has identical quality whatever the 'mainstream' delivery method (and to the extent that isn't currently true, it does weaken the BBC's position). Wouldn't that mean restricting the quality of radio FM transmissions to those of the equivalent AM transmissions? I appreciate that we're discussing television but surely the same principles should apply. -- Alan White Mozilla Firefox and Forte Agent. Twenty-eight miles NW of Glasgow, overlooking Lochs Long and Goil in Argyll, Scotland. Webcam and weather:- http://windycroft.co.uk/weather |
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#8
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On Nov 9, 3:50*pm, Alan wrote:
Wouldn't that mean restricting the quality of radio FM transmissions to those of the equivalent AM transmissions? I appreciate that we're discussing television but surely the same principles should apply. It's all down to what people have been led to expect. Nobody expects AM and FM radio to provide the same quality; they never have done and the impression has never been given that one would expect them to (indeed FM was always promoted as a 'premium quality' service). The situation is different with digital TV: DTT and DSAT (and cable) have always been promoted as alternative ways of receiving effectively the same quality signal. You can argue whether or not they should have been, but (I would say) you can't now disappoint those people who chose DTT on the understanding that the range of channels would be worse but not the picture quality. If you did, they could reasonably argue that they had been misled. Richard. http://www.rtrussell.co.uk/ |
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#9
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Richard Russell wrote:
: It's all down to what people have been led to expect. Nobody expects : AM and FM radio to provide the same quality; they never have done and : the impression has never been given that one would expect them to : (indeed FM was always promoted as a 'premium quality' service). BUT, a more relevant comparison for radio is between satellite (and Freeview) vs DAB. Using your argument you could say that everyone should have the inferior DAB sound quality replicated on other platforms. : The situation is different with digital TV: DTT and DSAT (and cable) : have always been promoted as alternative ways of receiving effectively : the same quality signal. You can argue whether or not they should : have been, but (I would say) you can't now disappoint those people who : chose DTT on the understanding that the range of channels would be : worse but not the picture quality.i I would like to disagree! I would like the best possible picture possible on each platform. The is only going to a slight difference on DTT! |
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#10
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In article
s.com, Richard Russell scribeth thus On Nov 9, 1:09*am, Stewart Phillip wrote: Personally I dont understand what he is trying to achieve with half baked HD transmission standards and gold plated HD production standards I would say Andy is doing everything he possibly can to maximise the quality of HD transmissions, within the constraints he has to work with. Average bit-rate is out of his control, because of 'political' decisions governing platform neutrality (which I happen to agree with) and the number of HD channels which 'the powers that be' have decreed should be carried on Freeview. So all he can do is to get the very most out of the limited bandwidth available. Lowest common denominator. Why not do the best they can on each platform?. It has always seemed to me their is much greater available bandwidth via satellite, but this seems to have a real downer on it in the UK suppose of Sky TV and its association with council houses;(... Using the best available encoders is one thing (although obviously that is a moving target) and, yes, "gold plated" HD production standards help because the cleaner the signal you put into the MPEG4 encoder (in terms of noise, aliasing etc.) the better the end result at a given bitrate. The other obvious reason why excellent production standards should always be maintained, irrespective of transmission parameters, is that the programmes will be archived at that high quality and can be made available in other ways (e.g. on BluRay or via some future improved transmission standard). In fact I argue that programmes should be captured at the 1080p/50 standard (full HD resolution at 50 progressive frames per second) and downconverted for transmission, but equipment availability and cost makes that impractical at the moment. Richard. http://www.rtrussell.co.uk/ -- Tony Sayer |
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