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Does anyone know why I get parity errors when trying to
extract VBI data (e.g., closed captioning) on certain channels? For comparison, on a Windows PC, using a Conexant Falcon-II
based card that appears to come from ASUSTEK (it was bundled in the Windows
Media Center HP Pavilliion I got), the closed caption comes through Media
Center “loud and clear”. However, on Linux (Centos 4.3), using IVTV and the ZVBI
library, I have not been able to read VBI on Channels 56 and 57. 55 works
fine, as do many other channels. I have not tested exhaustively, but I
think 70 worked fine too, so it doesn’t appear to stop at the frequency
for 55. I am seeing this problem with PVR-150, PVR-250, and PVR-500
cards, in two different physical locations (miles apart), but using the same
Time Warner cable provider ( Is it the IVTV driver or the Hauppauge cards? I bought them
all in the last 2 months, and there are a variety of tuners (TCL, Phillips,
Samsung, and LG) on these cards. I believe I’ve tested with all of
those varieties. The Tuner appears NOT to be the variable. The
picture seems to be fine as well, using the Hauppauge cards. I have not yet tried one of the Hauppauge cards in Thanks, Rich |
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