On Sat, 2002-01-26 at 12:33, mikepolniak wrote: > I just installed a Pinnacle Studio PCTV Pro and the picture quality is not very good > with my cable-tv feed. Poor color and flicker. Some stations look better > than others (but not the quality of the average color TV). Most stations are good > quality black and white, except for the annoying flicker. basically, tv's are really poor at displaying detail. no matter what tv you have, piping the video thru a computer monitor will show much higher detail. also, as with any cox cable (or any DIGITAL cable tv provider), i've found that the signal quality degrades over the cable lines. think of it as the cable lines being run ~20-100 miles from the central satellite feed of the main office of your town. after a while, the signal quality degrades. I've noticed that the upper part of the (horizontal) display, it will be slighly distorted or miscolored. When i switched to digital satellite service, i was obtaining the signal straight from the satellite adn the signal was only being pipped over ~25ft of cable to my digital cable box and then onto my tv or computer. The signal quality and display was a phenominal difference when comparing to the service being piped over ~100 miles of cable (of which, any fractures or degradation in that ~100 miles of cable could inadvertantly affect signal quality also). Now, i have no idea about analog cable. as far as i know, many cable providers have switched to the higher quality of digital cable (which is actually converted to a type of mpeg format or *something* already). > Iam using bttv-0.7.89, xawtv-3.68, XFree-4.2 and have tried all the card picture > adjustments and insmod options with the card detected as #39. I use card #52 or > #39 and pll=1 (pll switches off after check) with no difference in picture. > The tuner is type=17 Philips NTSC_M (MK2). I belive i have the same pci card as you. My /etc/modules.conf: alias char-major-81 bttv options bttv gbuffers=32 card=52 pll=0 radio=0 (gbuffers greatly helps when recording with this card) > > Does this indicate a faulty card ? Is there some other adjustment i can try? > Or are there better quality tuners i can buy? also, if you're trying to record from a video tape recorder, i've noticed here on my 1994 panasonic vhs recorder, the signal was awful and i cannot record from it without getting allot of dropped frames. this is due to the vhs player's h/w playback mechanism (or *something*). posted this awhile back on this forum also. You will notice a slight difference in quality when using gold cables. When i record, i usually use gold cables. If i'm just playing back audio, the simple metalic rca connectors due just fine. When i get to video, i usually just use gold connectors. (slightly better color) Also, try using S-Video instead of composite connector. Again, a slightly better signal quality & color. (*Note, gold cables, S-Video, this all tends to add-up to a noticable better quality) To conclude, it does sound like you're using an rf connector and using the PCTV Studio's card tuner for tuneing channels? I've never used the rf connector/tuner on my card. I've always used the S-Video (and if the program doesn't recognize this, i then drop to Composite (rca connector)) and then i would pipe the stereo audio thru my sblive values Line-In. So, i have: 1) ~25-50ft of S-Video cable with gold connectors. 2) ~25-50 of Composite + Stereo RCA cable with gold connectors. 3) 2 RCA Connector Converter to my input jack of my sblive card's Line-In. (dual rca (stereo) convertor to stereo headphone jack...can be found in any Radio Shack or ordered thru them...gold again, of course.) With digital satellite service, i get a good crisp picture here. > > -- > Save bandwidth and time - Get Mailfilter - The Anti-Spam Utility > http://mailfilter.sourceforge.net/index.html > > > > _______________________________________________ > Video4linux-list mailing list > Video4linux-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/video4linux-list
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