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140 posts

Master Geek

# 220296 4-Aug-2017 07:22
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I have a Win7 PC with DVB-T tuner cards in it that I have installed NextPVR on.  Channel scan worked fine and EPG is populated but when I try to play live TV I am seeing very choppy and incomplete frames.  I have tried various decoders but no difference.  I don't have this problem on the same PC when I use Mediaportal software instead of NextPVR.  I am guessing it is a decoder issue.  Which decoder(s) is recommended for DVB-T Freeview NZ?

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28143 posts

Uber Geek

Biddle Corp
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  # 1836943 4-Aug-2017 08:06
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Many would argue Windows 7 isn't the solution for HTPC use due to all the things missing in it.


What codec/decoder are you using? The Microsoft DTV is the best solution and that's all I've used for the last 5 or so years with Windows 8 and Windows 10. I'm pretty sure however that's not in Windows 7.


If your PC is still running Windows 7 what GPU are you using?



140 posts

Master Geek

  # 1836955 4-Aug-2017 08:33
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It looks like I have sorted it out.  I noticed in logs signs of bad signal which is odd since the signal is good in mediaportal.  I had scanned for channels using All Regions setting in nextpvr whereas in mediaportal I had scanned for Auckland Waiatarua.  Rescanning in nextpvr with Waiatarua selected it found TV1 on a different frequency to before.  This now plays ok.  I am using Microsoft DTV codec and I have a Radeon HD5450 card in the PC.


I am only using the PC as a backend with Kodi app on Android TV as the frontend but I wanted to make sure that the nextPVR app works ok on its own before adding Kodi into the mix.  I have been using Mediaportal as my backend until now but I find that when changing channels it can often take a few seconds to "stabilise" the video which is a bit annoying hence trying nextpvr to see if it is any better.


28143 posts

Uber Geek

Biddle Corp
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  # 1836976 4-Aug-2017 09:06
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You'll probably find the changing channels issue is in part because of the ATI GPU. For many years these were unusable for DVB-T due to buggy H.264 support in the drivers, and despite being better now they're still not a patch on Intel and NVidia chipsets.



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