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Forums › Home Theatre (incl HTPC) › PC refresh rate on TV


306 posts

Ultimate Geek
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Topic # 160549 11-Jan-2015 14:21
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Ive just hooked an Intel Nuc up to my TV and wondering what refresh rate I should set it on for best video playback in VLC.
Has following options at 1080p
30p Hz
59p Hz
59i Hz
60p Hz
60i Hz

It seems to default to 59p Hz with I thought was strange as TV display is showing 1920x1080 60p. So why would PC try to run at 59p Hz. 
Would I be better to change PC to 60p Hz. 
Its all a little over my head. Just want video to look as good as possible especially movement in sports. 

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21449 posts

Uber Geek
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  Reply # 1211953 11-Jan-2015 15:44
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You are best setting it to try to match your source material you are watching, so 24p for movies, 50P for TV content from PAL countries, 59P for stuff from NTSC countries.

The ones that are 1 less are actually the TV compatible timings as they worked off a multiple of the colour frequancy or something when they added colour to black and white broadcasts. In anycase 59Hz modes for video playback is the rate that the content was made to be shown at so should in theory reduce the number of dropped/duplicated frames that happen, but they seem to happen more often than they should on a PC playing video to attribute to just the fraction of a Hz difference in refresh rates.

25P and 30P are just modes that output interlaced video but should in theory have no motion between fields like a true interlaced output. Interlacing is bad so just ignore those modes.

If you want movement to look best, you have to match the refresh rate of the source. That is why the chromecast is a piece of crap for watching youtube etc on since it only outputs 60Hz, anything people upload at 50 or 25 looks like crap.




Richard rich.ms

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