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Message
re: When will fox upgrade their HD signal?
Posted on 1/14/18 at 1:43 am to ibdcooldude
Posted on 1/14/18 at 1:43 am to ibdcooldude
I can't even get my attenna to pick up Fox when it scans for channels in Mandeville. I get four different NBCs though.
0
Posted on 1/14/18 at 3:19 am to ibdcooldude
Fox/ESPN/ABC=720p
NBC/CBS=1080i
720p, full resolution 1280x720 60 frames per second, really 59.94 for you tv tech nerds
1080i, resolution 1920x1080 but each 1080 line is split into even and odd fields so you only get half resolution for each field at 60 fields per second and when combined make a 1080 30 frame image, but can lead to zigzag lines on fast motion, but now most TVs have some sort of correction to fix this.
Also, some stations on the over the air side have bit rate issues. Some stations are packing now 2 or 3 subchannels that are robbing the bit rate. Stations are working with about a 19 mbps window to send its feeds. So depending on what mix of encoding methods variable or constant can lead to wild swings in picture quality.
Also it doesn’t help that the broadcasters are still using the MPEG2 codec from the 1990’s while most others use now MPEG 4 for satellite and even some cable transmissions. Which means that the signal could be coming in MPEG 4 from the network and then transcoded into MPEG2. (FOX is supposed to have something called a splicer that does this. The splicer would control the bit rate and increase it as necessary for sports and reduce the bit rate on the other channels but that was true a few years ago and if some stations have found ways around it). The MPEG 2 signal is then sent to the cable and satellite providers which could transcode it back into MPEG4 to reach your home (true for satellite local feeds).
So yes Virginia your signal can look like crap and the reason is above too much transcoding. Hopefully, this all changes once ASTC 3.0 rolls out and 4K broadcasts start but there is always something to screw it up.
NBC/CBS=1080i
720p, full resolution 1280x720 60 frames per second, really 59.94 for you tv tech nerds
1080i, resolution 1920x1080 but each 1080 line is split into even and odd fields so you only get half resolution for each field at 60 fields per second and when combined make a 1080 30 frame image, but can lead to zigzag lines on fast motion, but now most TVs have some sort of correction to fix this.
Also, some stations on the over the air side have bit rate issues. Some stations are packing now 2 or 3 subchannels that are robbing the bit rate. Stations are working with about a 19 mbps window to send its feeds. So depending on what mix of encoding methods variable or constant can lead to wild swings in picture quality.
Also it doesn’t help that the broadcasters are still using the MPEG2 codec from the 1990’s while most others use now MPEG 4 for satellite and even some cable transmissions. Which means that the signal could be coming in MPEG 4 from the network and then transcoded into MPEG2. (FOX is supposed to have something called a splicer that does this. The splicer would control the bit rate and increase it as necessary for sports and reduce the bit rate on the other channels but that was true a few years ago and if some stations have found ways around it). The MPEG 2 signal is then sent to the cable and satellite providers which could transcode it back into MPEG4 to reach your home (true for satellite local feeds).
So yes Virginia your signal can look like crap and the reason is above too much transcoding. Hopefully, this all changes once ASTC 3.0 rolls out and 4K broadcasts start but there is always something to screw it up.
Posted on 1/14/18 at 6:26 am to ibdcooldude
quote:
I worked for KADN FOX 15 in Lafayette, but we were all owned by Nexstar at the time. Does that station look bad to y'all as well?
Yes
WGMB out of BR looks the same while Fox games through Sunday Ticket look great
Posted on 1/14/18 at 7:36 am to SirWinston
Hey I’m with you. Painted endzones looked 100000xs better. I just know the turf stadiums that do paint them usually have separate detachable pieces for the endzones. I also had never heard about the slippery issue another poster stated.
And after New Years they host the sugar bowl
And after New Years they host the sugar bowl
This post was edited on 1/14/18 at 7:38 am
Posted on 1/14/18 at 9:55 am to Tarps99
Yes Fox is 720P, however WGMB is bypassing the Fox splicer and bringing the feed into a AJA FS1 and converting it to 1080i as everything is converted to 1080i before it goes through all of their other equipment. It then goes to a MPEG4 encoder with Variable Bit Rate, however each of the sub-channels are only allow a certain bit-rate.
I believe that the Fox signal is converted back to 720P somewhere along the line, but I don't remember at this time.
I believe that the Fox signal is converted back to 720P somewhere along the line, but I don't remember at this time.
Posted on 1/15/18 at 5:27 pm to SirWinston
Damn that pic looks crisp.
Wish my Brazzers account was that clear.
Wish my Brazzers account was that clear.
Posted on 1/15/18 at 5:52 pm to pellietigersaint
Even Fox's stupid theme music and Graphics are outdated
NBC puts on a great show on Sunday Night Football. Too bad for college football all they show are crappie Notre Dame games against Purdue and Navy
NBC puts on a great show on Sunday Night Football. Too bad for college football all they show are crappie Notre Dame games against Purdue and Navy
Posted on 1/15/18 at 10:38 pm to ibdcooldude
That variable bit rate can be the killer of the crispness of signals. You can go from a high bit rate to a low bit rate in a matter is seconds. Variable from my perspective only works in a post production environment where multiple passes of video can be done without regard to the time it takes to squeeze the unnecessary bits out and get the best picture at the lowest bit rate possible.
For a live presentation, this is nearly impossible even with today’s technology unless you use the newer codecs that can break down the picture in different grids. But they are not ready for broadcast TV until ATSC 3.0 comes out.
Fox stations in our region use variable bit rates:
Biloxi 8-10 mbps
New Orleans 3-13.5 mbps
Baton Rouge ?-12.5 mbps
Lafayette 6-9 mbps
Lake Charles ?-14 mbps
By the way...
I was in Biloxi this weekend at one of the coast casinos and you should have seen the trash that WXXV calls an HD signal. That was blurry, and I could see the pixelation every other second or so in the score box which is pretty much static and that should have been the most stable part of the screen. This was on fairly large TV at the bar. (For those of you wondering, it was the Scarlet Pearl Casino and the TV was not the large LED display board in the center of the casino if you have been there you know what I am talking about. The TV I saw was at one of there many restaurants that had a bar and some LCD TVs all showing the game.)
To be fair I am not sure if the casino was picking up the OTA signal, cable, or a Directv Feed and using either source to feed its own cable system as some businesses have. So, some more video processing beyond the TV station’s control could be at play.
For a live presentation, this is nearly impossible even with today’s technology unless you use the newer codecs that can break down the picture in different grids. But they are not ready for broadcast TV until ATSC 3.0 comes out.
Fox stations in our region use variable bit rates:
Biloxi 8-10 mbps
New Orleans 3-13.5 mbps
Baton Rouge ?-12.5 mbps
Lafayette 6-9 mbps
Lake Charles ?-14 mbps
By the way...
I was in Biloxi this weekend at one of the coast casinos and you should have seen the trash that WXXV calls an HD signal. That was blurry, and I could see the pixelation every other second or so in the score box which is pretty much static and that should have been the most stable part of the screen. This was on fairly large TV at the bar. (For those of you wondering, it was the Scarlet Pearl Casino and the TV was not the large LED display board in the center of the casino if you have been there you know what I am talking about. The TV I saw was at one of there many restaurants that had a bar and some LCD TVs all showing the game.)
To be fair I am not sure if the casino was picking up the OTA signal, cable, or a Directv Feed and using either source to feed its own cable system as some businesses have. So, some more video processing beyond the TV station’s control could be at play.
Posted on 1/15/18 at 11:12 pm to pellietigersaint
The game looked fantastic in Minnesota!
Posted on 1/31/18 at 6:19 pm to RedMustang
With the NFL and FOX agreeing on a new 5 year deal for Thursday night games, I encourage everyone to contact WGMB and complain about the picture. Hopefully it will simulcast on NFL Network.
You can leave a comment for WGMB here at the bottom of the page.
You can leave a comment for WGMB here at the bottom of the page.
This post was edited on 1/31/18 at 6:21 pm
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