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548 posts

Ultimate Geek


#20986 11-Apr-2008 21:10
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Checked the TV3 HD programs for the first time today & was surprised by the differences between "Home and Away" vs "So You Think You Can Dance Australia" & "Rove".

Latter two display near perfectly (maybe the occasional dropped frame?), but "Home and Away" showed very noticeable "de-interlacing effects" whenever there was more than slow motion; ie. very distinct offset shaddow images - also, picture broke up a number of times.

Anyone else noticed differences between these programs?

Possible reasons?

(PowerCinema / HVR-4000 / 8600gts / quad core CPU.  CPU usage ~25% across all 4 cores - temp ~35deg.  GPU temp ~48deg in both instances, so system was far form struggling?)

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1865 posts

Uber Geek


  #122953 11-Apr-2008 21:35
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I would check you have hardware acceleration enabled that very high cpu usage.
Assuming you mean each core was working at 25%

CPU: Intel 3770k| RAM: F3-2400C10D-16GTX G.Skill Trident X |MB:  Gigabyte Z77X-UD5H-WB | GFX: GV-N660OC-2GD gv-n660oc-2gd GeForce GTX 660 | Monitor: Qnix 27" 2560x1440



548 posts

Ultimate Geek


  #122954 11-Apr-2008 21:43
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IIRC the 8600gts is not the latest gen GPU & does not handle all the H.264 decoding?


548 posts

Ultimate Geek


  #122982 11-Apr-2008 23:51
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mentalinc: I would check you have hardware acceleration enabled ...

Hm.  Maybe I misunderstood.  I thought that PowerCinema automatically used hardware acceleration if available.  Cannot find any setting in PowerCinema to specifically enable it.

Do I in fact need to specifically enable it?

If so, how / where?

2364 posts

Uber Geek


  #122995 12-Apr-2008 05:08
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Tools - Video

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My thoughts are my own and are in no way representative of my employer.

548 posts

Ultimate Geek


  #123007 12-Apr-2008 10:18
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From which program?  I cannot see a "Tools" option in either PowerCinema or the NVIDIA Control Panel.

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  #123104 12-Apr-2008 19:58
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On Media Portal it is in Setup/DirectShow Fitler Control/PowerDVD 7 Decoder setting. Also check the Video renderer the EVR uses less CPU (2%) but seems to break up more and looses synchronisation between audio and video, VMR9 uses around 10-20% and no hardware acceleration is around 50% for my Asus G2S (8600GT M). Have upgraded the NVidia video driver to get the hardware acceleration to work in the first place and now up to version 174.31 to loose most of the de-interlacing problems. But more tinkering to do...

170 posts

Master Geek

  #123460 14-Apr-2008 18:08
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DS248: IIRC the 8600gts is not the latest gen GPU & does not handle all the H.264 decoding?

Is this a bit of speculation or a recalled fact?
I've got a similar setup in my second PC with Q6600 and back to an 8600GTS running GBPVR on vista and it has no problem with TV3 DVB-T HD, not any that I can spot anyway?


324 posts

Ultimate Geek

  #123475 14-Apr-2008 19:03
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DS248: IIRC the 8600gts is not the latest gen GPU & does not handle all the H.264 decoding?

8600GTS core is not the latest GPU because of course it has been supplanted by the 8800GT and 9xxx series cards, all of which sport the same core architecture.

HOWEVER, the 8400/8500/8600 cards all fully support hardware H.264 decoding, unlike the 6xxx or 7xxx series cards.

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