[mythtvnz] How do I get smooth playback on DVB-S

[Steven Ellis]

On Mon, May 4, 2009 11:13 am, Aaron Drysdale wrote:
> I have recently switched from Sky, to Mythtv with a Nova-S 500 tuner
> card. My setup is now almost perfect in terms of usability, however I'm
> still bugged by the quality of the video playback. It doesn't seem as
> clear as Sky. I'm not sure whether this is a difference between "pure"
> Freeview and Sky (I doubt it), my being overly sensitive (I also doubt
> it as my wife has commented on the same), an inherent limitation in
> having an HTPC (I hope not) or something that can be fine-tuned through
> settings.
>
>
>
> My observations are that the video is not smooth particularly with fast
> moving or panning shots, especially obvious when you get ticker tapes
> running along the bottom of the screen like in the breakfast show, and
> seems slightly pixilated and also blurry.
>
>
>
> What are others experiences with this? I've got no Freeview set top box
> to compare it to.
>
>
>
> My playback profile is set to Normal, and I haven't changed it. What are
> others using for a playback profile? I do find that during playback the
> video is slightly smaller than the panel, so I've applied a 3% scale in
> Mythtv settings.

What de-interlacer do you have enabled? I've found that Bob 2x provides
the best picture on DVB-S and removes a lot of the ticker tape issues.

Also what graphics chip and driver are you using as you might be able to
adjust overscan at the driver level.


> My setup is:
>
> -          Single Frontend/Backend
>
> -          Ubuntu 8.10
>
> -          Asus EN8500GT Silent graphics card
>
> -          Sony 40" LCD
>
> -          DVI->HDMI driving the TV
>
> -          Asus MOBO - can't remember which one
>
> -          Intel Core2 Quad processor
>
> -          4GB RAM
>
>
>
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>


--------------------------------------------
Steven Ellis - Technical Director
OpenMedia Limited - The Home of myPVR
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz