Derrick Posted July 7, 2007 Share Posted July 7, 2007 HD from Australia Program Number: 1 Globecast Australia HD Descriptor: Maximum Bitrate Descriptor Maximum bitrate: 4784200 bytes per second Descriptor: Smoothing Buffer Descriptor SB Leak Rate: 625 SB Size: 1024 Descriptor: System Clock Descriptor External Clock Reference: 0 Clock Accuracy Integer: 2 Exponent: 1 Stream Type: 0x02 MPEG-2 Video PID 308 (0x0134) MPEG Video: Bitrate 35.898 Mbps Resolution 1920 x 1080i MPEG Video: Framerate 25 fps Aspect Ratio 16:9 Chroma Format 4:2:2 Descriptor: Data Stream Alignment Descriptor Alignment type: video access unit Stream Type: 0x04 MPEG-2 Audio PID 256 (0x0100) MPEG1 Audio: Bitrate 384 Kbps Sample Rate 48 KHz MPEG1 Audio: Layer II Mode Stereo Descriptor: ISO639 Language Descriptor Language: eng Audio type: undefined Quote Link to comment
MarSch2 Posted July 7, 2007 Share Posted July 7, 2007 Which Sat? Which Frequenz? Quote Link to comment
Derrick Posted July 7, 2007 Author Share Posted July 7, 2007 ..sorry, i've forgot to mention the position/frequency. have a look here: http://www.sat-benelux.nl/forum/viewtopic,...977.html#196977 Quote Link to comment
MarSch2 Posted July 7, 2007 Share Posted July 7, 2007 (edited) Unfortunly i only can get from 7 west to the 28,2 east... I do only have a multifeed not a "moving dish" with a motor. Does 36MB/s from Australia look better then 10-20MB/s as we get it here in Europe? Can you get me a little peace of record to see it myself if it's better...? Edited July 7, 2007 by MarSch2 Quote Link to comment
Derrick Posted July 7, 2007 Author Share Posted July 7, 2007 The high rate is partially caused by the 4:2:2 chroma format which is normally used for feeds. Whether the quality is much better is difficult to judge cos there's only a limited number of 4:2:2_capable_mpeg2_decoders. I only know elecard/mainconcept for directshow and the vlc. Because of the high rate, I won't upload samples. Quote Link to comment
MarSch2 Posted July 7, 2007 Share Posted July 7, 2007 @ Pro7 HD there is also a real HD stream to watch.... ) Quote Link to comment
bergh Posted July 9, 2007 Share Posted July 9, 2007 (edited) Hello Was the Pro7 sound in HD also like little twinkiy winkie in a drum? Say the SD Sound was unbeliveable flaw and shitty. Especially from Hamburg, but also from other places. Edited July 9, 2007 by bergh Quote Link to comment
Kat-CeDe Posted July 9, 2007 Share Posted July 9, 2007 Hi, I read that Pro7 hd only transmitted an upsampled SD-Signal. cu B. Quote Link to comment
azeman Posted July 9, 2007 Share Posted July 9, 2007 Hi,I read that Pro7 hd only transmitted an upsampled SD-Signal. Where did you read that? that's correct.... Whats correct? That you read that, too? Quote Link to comment
Derrick Posted July 9, 2007 Author Share Posted July 9, 2007 The live HD_world_feed in 1080i mpeg2 came from 45E (almost 24h uninterrupted transmission ). This feed was in 4:2:0 and was already edited. Raw feeds in 1080i 4:2:2 came from Tokyo, Sidney, Shanghai, Hamburg and New Jersey via 43W. Additionally the BBC had an own feed on 24,5W. I guess they'll soon show their recordings. But I've got plenty on my HD. Have to buy 500gig more Quote Link to comment
azeman Posted July 9, 2007 Share Posted July 9, 2007 (edited) Raw feeds in 1080i 4:2:2 came from Tokyo, Sidney, Shanghai, Hamburg and New Jersey via 43W.Have to buy 500gig more Very very nice :-) I have recorded from Pro7HD. The 4h second Part is 21GB. From the first part in the evening i have recorderd only some clips. Bandwith was about 9Mbit as usual in Pro7HD and SAT.1HD. That was definitly not upsampled SD. I didn´t remember "very" bad sound. Ok, some "live"-acts weren´t as good as one would expect. But that´s a problem of the voice itself. I will have a look on the sound quality this evening when i´m @home. Edited July 9, 2007 by azeman Quote Link to comment
azeman Posted July 9, 2007 Share Posted July 9, 2007 Correction: Bitrate was mostly near 14MBit! And the sound was ok, too. Quote Link to comment
spAik Posted July 9, 2007 Share Posted July 9, 2007 I read that Pro7 hd only transmitted an upsampled SD-Signal. me too, but it was wrong..that wasn upscaled SD Infos: http://www.digitalfernsehen.de/news/news_171262.html Quote Link to comment
MarSch2 Posted July 9, 2007 Share Posted July 9, 2007 (edited) @Derrick Do U have Katie Melua in HD from the Hamburg concert? She was send only in SD by N24 (1 song) not on Pro7 HD. I recorded BBC HD on 28,2 east my own but i can play back the recordings any longer, even if the live stream was good to watch, how does that come? I can play back Pro7 HD and other HD material very good. Edited July 9, 2007 by MarSch2 Quote Link to comment
Bobben Posted July 9, 2007 Share Posted July 9, 2007 The high rate is partially caused by the 4:2:2 chroma format which is normally used for feeds. Whether the quality is much better is difficult to judge cos there's only a limited number of 4:2:2_capable_mpeg2_decoders. I only know elecard/mainconcept for directshow and the vlc. Because of the high rate, I won't upload samples. It was actually wery low bitrate for a HDTV feed. In proffesional broadcasting at least 50-60Mbit/s MPEG2 4:2:2 is used for HD feeds. BBC's production guidelines classify even HD feeds with bitrates less than 60Mbit/s as standard definition. From what I have heard the decoding/reencoding generationloss is far greater (more visible) in HDTV than with SDTV. The HD feeds for World Cup Football in Germany 2006 was 57Mbit/s MPEG2 video 4:2:2. I think MPEG2 4:2:2 1920x1080i 50Hz 4:2:2 contributionlinks can use up to 90Mbit/s. Quote Link to comment
Derrick Posted July 9, 2007 Author Share Posted July 9, 2007 In proffesional broadcasting at least 50-60Mbit/s MPEG2 4:2:2 is used for HD feeds. ..maybe via fiber but not via sat or can you name a feed ? Quote Link to comment
Bobben Posted July 10, 2007 Share Posted July 10, 2007 (edited) ..maybe via fiber but not via sat or can you name a feed ? The 90Mbit/s is likely to be fiber because DVB-S2 normally is limited to 85Mbit/s at 30MS/s. 50-60Mbit/s is no problem with DVB-S2. For World Cup Germany 2006 feeds DVB-S2 was used on 7-east. The World Cup 2006 feeds on 7-east used : Video 1080i/50 56217 kbits/s Modulation DVB-S2, 8PSK FEC 3/4 Symbolrate 27.7456 Ms/s audio 1 (stereo) 384 kbits/s audio 2 (Dolby E) 2304 kbits/s Most of the HD feeds for Live Earth used symbolrate 28MS/s. If DVB-S2, 8PSK 3/4 had been used with SR=28MS/s there would have been room for 62.38Mbit/s on the feeds. Edited July 10, 2007 by Bobben Quote Link to comment
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