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guztavo  
#1 Posted : Tuesday, October 1, 2019 1:40:02 AM(UTC)
guztavo

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Hi!!

Thats the point... i need 1080i50 but i can't get more than 1080i30 or 25....
How can i fix this? I will use a BM crossconverter but that it's not the real solution...
I can't add a BM Mini monitor because i do not have avaiable PCIe ports, and have no thunderbolt ports.
Thanks!!
Peter1000  
#2 Posted : Tuesday, October 1, 2019 2:42:39 AM(UTC)
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There is no difference between 180i50 and 1080i25. EBU redefined the definition about 10 years ago. Actually 1080i50 is now 1080i25.
1080i50 means interlaced, 50 half pictures
1080i25 means interlaced, 25 full pictures
All companies have some trouble with the correct wording.
Half of the Sony broadcast devices display, for the same signal, 1080i50, the other half 1080i25.

You can make a recording with 720p, and another one with 1080i25 (1080i50)
720x1280x50= 46’080’000 pixels/sec
1920x1080x25= 51’840’000 pixels/sec
The 1080i25 recording should have a file about 10% larger.

1080p50 has double pixels per second then 1080i25, 103’680’000 pixels/sec, that format needs a lot more CPU power
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guztavo on 10/1/2019(UTC)
MartLeib  
#3 Posted : Tuesday, October 1, 2019 3:27:45 AM(UTC)
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You need to change GPU output resolution and refresh rate.

https://www.windowscentr...-refresh-rate-windows-10

If you get to the "Monitor settings" you should be able to select 25 Hz, interlaced. That is equal to the 1080i50.
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guztavo on 10/1/2019(UTC)
guztavo  
#4 Posted : Tuesday, October 1, 2019 3:48:43 AM(UTC)
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Well.... this was unspected....
So if i want to get my signal into an ATEM switcher on 50i, my PC at 25hz will work?
This fix a lot of issues for me, and was clarifing... But... why this people do this thing withs nomenclature... Why they just dont call 25i?
Thanks!!
nakedeye  
#5 Posted : Tuesday, October 22, 2019 12:29:39 PM(UTC)
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1080i50 and 1080i25 are the exact same thing one is simply making reference to the 50 interlaced fields and the other is making reference to the base framerate of 25 frames per second which is made up of 25 interlaced odd and even pairs which adds up to 50 interlaced fields. For you to set the full screen output to 1080i you will need to go to your graphics card settings and change there and then go into vmix settings to check. If you are seeing 1080/25i then this is the correct setting as everyone has tried to explain. Of course there are a few things to consider. 1, If your fullscreen display does not support interlaced signals then the setting will not be available. 2, Same if your graphics adapter doesn't support it (most do however). 3, It is very likely you will experience display problems such as tearing jumpy playback due to software, screen or adapter limitations. Good luck.
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