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| Questions about Dialog Normalization |
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Posted by: BDgeek - 2020-08-17, 09:14 PM - Forum: General technical discussions
- Replies (4)
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I know it's 2020, but I guess I still have some questions that I couldn't quite figure out about Dialog Nomarlization on AC-3, THD and DTS tracks.
I noticed that on the majority of AC-3 and THD encoded tracks on commertial discs, when attemped to decode to wav/w64 with EAC3TO, the program detects clipping and makes a second pass applying a negative gain to correct the issue. But it's usally less than the -4db Dialog Normalization standard.
- So my first question is, in case of such tracks, if Dialog Normalization flag is removed from an encoded track (EAC3TO default demuxing parameter), what would happen when played back and decoded by a regular consumer AVR product? I mean, will it occour in clipping?
My guess is that the receiver won't be able to perform such second pass correction on the fly. Is this assumption correct?
- The second question is, what's the practical implication of applying such negative gain, Does it affect the quality of the audio in any way?
- Third and final question, what about a positive gain (usually applied when setting the "normalize" option on EAC3To decoding process), does it have any negative impact on the audio quality?
In other words, is applying a positive gain is more "harmfull" than a negative one?
Thanks a lot for any valuable info!
I did a previous search on these issues, but couldn't find convincing answers. So what's better than couting on the knowledge of the great userbase here.
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| HDTV BLACK LEVELS |
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Posted by: spoRv - 2020-08-15, 11:27 AM - Forum: General technical discussions
- Replies (2)
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HDTV BLACK LEVELS
Code: PIONEER 9.5G Elite PRO-101FD 50″ 0,00050fL = 0,00171nits AVSForum
PIONEER 9.5G Kuro KRP-500M 50″ 0,00050fL = 0,00171nits AVSForum
PANASONIC 2013 Viera TX-P65VT65B 65″ UK 0,00058fL = 0,00200nits AVSForums
PANASONIC 2013 Viera TX-P60ZT65B 60″ UK 0,00088fL = 0,00301nits AVSForums - ANSI checkerboard
PANASONIC 2013 Viera TX-P60ZT65B 60″ UK 0,00090fL = 0,00308nits HDTVtest - black screen
PANASONIC 2013 Viera TX-P65VT65B 65″ UK 0,00096fL = 0,00330nits HDTVtest - Cal. “Mid” mode
SAMSUNG 2013 PN60F8500 60″ 0,00100fL = 0,00343nits TweakTV - Black Optimizer on
PIONEER 9G Elite PRO-141FD 60″ 0,00100fL = 0,00343nits AVSForum
PIONEER 9G Kuro PDP-6020FD 60″ 0,00100fL = 0,00343nits D-Nice
PIONEER 9G Elite PRO-111FD 50″ 0,00100fL = 0,00343nits Home Theater
PANASONIC 2013 Viera TC-P65ZT60 65″ 0,00110fL = 0,00377nits HDGuru
PANASONIC 2013 Viera TX-P60ZT65B 60″ UK 0,00117fL = 0,00401nits HDTVtest - ANSI checkerboard
PANASONIC 2013 Viera TC-P60VT60 60″ 0,00146fL = 0,00500nits Chad B - in 60Hz mode
SAMSUNG 2014 PN64H5000 64″ USA 0,00160fL = 0,00548nits HDTVtest - Cal. black screen
PANASONIC 2013 Viera TC-P60VT60 60″ 0,00165fL = 0,00565nits Chad B - ANSI
PANASONIC 2012 Viera TC-P65VT50 65″ 0,00200fL = 0,00685nits Chad B - ANSI
PANASONIC 2012 Viera TC-P65VT50 65″ 0,00200fL = 0,00685nits Chad B - fin 96 Hz mode
PANASONIC 2013 Viera TC-P50ST60 50″ 0,00232fL = 0,00795nits Chad B - full field black
PANASONIC 2013 Viera TC-P50S60 50″ 0,00240fL = 0,00822nits PlasmaPZ80U - full field black
PANASONIC 2012 Viera TC-P65VT50 65″ 0,00250fL = 0,00857nits Chad B - in 60 Hz mode
SAMSUNG 2013 PN64F8500 64″ 0,00250fL = 0,00857nits Chad B - 1080P/24 CS on
PANASONIC 2010 Viera TC-50VT20 50″ 0,00260fL = 0,00891nits hdtvtest.co.uk
PANASONIC 2013 Viera TC-P50ST60 50″ 0,00290fL = 0,00994nits Chad B - ANSI
SAMSUNG 2013 PN60F8500 60″ 0,00300fL = 0,01028nits TweakTV - ANSI
PIONEER 8G Kuro PDP-6010FD 60″ 0,00400fL = 0,01370nits Home Theater - video black
PIONEER 8G Kuro PDP-5010FD 50″ 0,00400fL = 0,01370nits AVSForum
PIONEER 8G Elite PRO-110FD 50″ 0,00400fL = 0,01370nits Home Theater
PANASONIC 2010 Viera TH-65VX100U 50″ 0,00500fL = 0,01713nits Home Theater
PANASONIC 2012 Viera TC-P50GT50 50″ 0,00530fL = 0,01816nits Chad B
PIONEER 8G Kuro PDP-5080HD 50″ 0,00600fL = 0,02056nits AVSForum
SAMSUNG 2012 PN60E8000 60″ 0,00620fL = 0,02124nits Chad B - with CS
PANASONIC 2012 Viera TC-P50GT50 50″ 0,00620fL = 0,02124nits Chad B - ANSI
PANASONIC 2011 Viera TC-P65VT30 65″ 0,00620fL = 0,02124nits CNET
SAMSUNG 2013 PN64F8500 64″ 0,00690fL = 0,02364nits Chad B - Black optimizer off
SAMSUNG 2010 PN63C7000 63″ 0,00700fL = 0,02398nits Chad B
PIONEER 8G Kuro PDP-4280HD 42″ 0,00700fL = 0,02398nits AVSForum
PANASONIC 2009 Viera TC-P54V10 54″ 0,00700fL = 0,02398nits Chad B
SAMSUNG 2010 PN58C7000 58″ 0,00700fL = 0,02398nits Home Theater
SAMSUNG 2012 PN60E8000 60″ 0,00730fL = 0,02501nits Chad B - 1080P/24 CS on
SAMSUNG 2012 PN60E8000 60″ 0,00790fL = 0,02707nits Chad B - ANSI without CS
PIONEER 8G Kuro PDP-6010FD 60″ 0,00800fL = 0,02741nits Home Theater - ANSI
SAMSUNG 2011 PN64D8000 64″ 0,00800fL = 0,02741nits Chad B
PANASONIC 2011 Viera TC-P55GT30 55″ 0,00820fL = 0,02809nits CNET
PANASONIC 2010 Viera TC-50G25 50″ 0,00830fL = 0,02844nits Chad B
SAMSUNG 2012 PN51E550 51″ 0,00850fL = 0,02912nits CNET
PANASONIC 2009 Viera TX-P42G10 42″ 0,00870fL = 0,02981nits FlatpanelsHD
PANASONIC 2010 Viera TC-P50S2 50″ 0,00900fL = 0,03083nits Chad B
PANASONIC 2011 Viera TC-P65ST30 65″ 0,00940fL = 0,03220nits CNET
PANASONIC 2010 Viera TC-P65VT25 65″ 0,01000fL = 0,03426nits Chad B
SAMSUNG 2010 PN50C8000 50″ 0,01000fL = 0,03426nits D-Nice
SAMSUNG 2012 PN51E450 51″ 0,01110fL = 0,03803nits CNET
LG 2010 50PK950 50″ 0,01160fL = 0,03974nits FlatpanelsHD
SAMSUNG 2011 PN64D8000 64″ 0,01200fL = 0,04111nits Chad B - 1080P/24 CS on
SAMSUNG 2009 PN58B650 58″ 0,01200fL = 0,04111nits Tom Huffman
LG 2010 50PK550 50″ 0,01320fL = 0,04522nits Chad B
PANASONIC 2011 Viera TC-P50ST30 50″ 0,01350fL = 0,04625nits Chad B - video black
PANASONIC 2011 Viera TC-P50ST30 50″ 0,01350fL = 0,04625nits Chad B - ANSI
LG 2012 50PM9700 50″ 0,01360fL = 0,04659nits CNET - Black luminance 0%
PANASONIC 2008 Viera TH-50PZ800U 50″ 0,01500fL = 0,05139nits Tom Huffman
SAMSUNG 2011 PN51D8000 51″ 0,01650fL = 0,05653nits Chad B
SAMSUNG 2010 PN63C7000 63″ 0,01800fL = 0,06167nits Chad B - CS on
SAMSUNG 2009 PN50B860 50″ 0,02000fL = 0,06852nits Home Theater
LG 2011 50PZ950 50″ 0,02190fL = 0,07503nits CNET - Black luminance 0%
SAMSUNG 2011 PN51D8000 51″ 0,02250fL = 0,07709nits Chad B - 1080P/24 CS on
LG 2009 60PS80 60″ 0,02300fL = 0,07880nits Home Theater
LG 2010 50PK750 50″ 0,02600fL = 0,08908nits Chad B
LG 2008 50PG60 50″ 0,03300fL = 0,11306nits Home Theater
PANASONIC 2008 Viera TC-42PX80 42″ 0,03700fL = 0,12676nits FlatpanelsHD
Source: https://www.avsforum.com/threads/compari...ls.1471147
Note: some models appears more than once due to different measurement.
If you are aware of other HDTV black level, please post a comment with:
maker - year - model - country or continent - black level (fL or nits) - source (with link) - eventual note on measurement
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| Alligator & Alligator 2 The Mutation |
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Posted by: alleycat - 2020-08-12, 02:18 PM - Forum: Official and unofficial releases
- Replies (2)
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Hi All,
So I've seen that these have had blu ray releases in Germany and Spain, but I was under the impression they were DVD upscales. I've recently seen someone in a facebook group selling bootleg blu rays and they claim to have both of these and they are sourced from HD scans not SD upscales.
Does anyone know if there is any truth to this? Is there a blu ray somewhere in the world featuring a HD scan or is this guy telling lies? The same guy is also claiming to have a HD scan sourced blu ray of Fade to Black 1980, which again as far as I am aware does not have a blu ray release anywhere in the world that uses a HD scan.
Thanks
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| this is a good place! |
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Posted by: cori - 2020-08-06, 10:11 AM - Forum: Presentation
- Replies (14)
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hi there! love all the amazing work going on here and i'm happy to join. also have a few things in the works that i hope to share soon!
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