>
> I am testing WinTV PVR150 and PVR500 cards, however there is a
> noticeable difference in quality with regards to ghosting:
>
> The cards are installed in the same machine and it makes no difference
> which antenna is plugged into which card.
>
> I have set the temporal_filter from 0 to various values, I can see its
> effects, (set it to 31 for visualiser-esque joy) so it is definitely
> being set but it does not help.
>
> I have tried tuning to values near by, and I have ensured that the
> capture is at native 720x576
>
> VBI is not in use
>
> Driver is 0.10.3, kernel 2.6.19.1
>
> http://bryars.eu/gallery/tvcapture/wintv150_cap
> http://bryars.eu/gallery/tvcapture/wintv500_cap
>
> I'm a bit lost now with regards to why the quality is so poor, but I'm
> extremely keen to get the 500 working better, as after initial tests it
> doesn't seem to be (as?) susceptible to the DMA TIMEOUT error from beyond.
The PVR500 is basically just a single card with two PVR150 units on it, so
from the point of view of the driver there is NO difference between a
PVR150 and a PVR500. They are handled exactly the same.
What does make a difference is that the PVR500 splits the antenna signal
internally and so requires a better quality signal. The other difference
is that the your PVR500 has a different tuner, but the Philips tuner is
generally quite good (avoid PVR500's with a Samsung tuner, BTW).
You could try to capture from the composite or S-Video input, this
bypasses the tuner circuitry and should give completely identical results
for the PVR150 and PVR500.
Regards,
Hans
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