On Wed, 2009-05-27 at 02:15 +0200, hermann pitton wrote: > Hi, > > Am Dienstag, den 26.05.2009, 22:21 +0200 schrieb Martin Dauskardt: > > I should add that the picture quality is with all tested tuner types worse > > than with my PVR250/350. I don't know if a PVR150 is in generally worse than > > a PVR250. I can't call it really noisy, but in german I would say the picture > > is a little bit "grobkörnig". It really needs a temporal filter setting of > > value 8 or more, while my other PVR cards have a nice quality even with value > > 0. > > > > I will test whatever you guys want me to test :-) But I am not a programmer, > > so I need detailled instructions what to patch. > > > > My next step will be testing an older v4l2 with an 2.6.27 kernel to see if the > > audio problem still exists. > > Martin, that seems the right way to start and there is no need to hurry. > > If nobody has a datasheet, and I can imagine that such an early RF loop > through tuner has some specials, you are still in a difficult testing > field, even if only on PAL BG for now. Is RF out is active would be > still interesting to know. Hermann, There is an FQ1216LME MK3 data sheet here: http://dl.ivtvdriver.org/datasheets/tuners/FQ1216LME%20Mk3.pdf Is it safe to assume that the MK5 is not very different from the MK3? I can build an entry for the FQ1216LME based on this datasheet (maybe on Friday night) and hope it works well enough for the MK5. Regards, Andy > If on the same RF signal quality, means no more passive RF splitter in > between, I don't know what we can expect, but for example the FM1216ME > and the FMD1216ME hybrid MK3s do perform excellent and don't have this > "grobkörnige" (grainy?) picture, which you often see on cheaper tuners. > > As far as I know, not any such complaints about the MK4s so far too. > > Dmitry has some MK3 variant, where the first time on a Philips tuner > Chinese SAW filters are employed instead of the original EPCOS filters. > > The question, if that could cause performance/sensitivity losses, is not > yet answered. Also if this is related to the SECAM DK tweaks he needs. > > I would start testing for different sound quality between tuner 56 and > 38. Beginning silence on old B/W mono broadcasts could make a difference > I somehow have in mind. > > If 56 still has no sound at all, that should indicate a major technical > change compared to prior tuners. > > Cheers, > Hermann > > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
