[mythtv-users] Record sound using a BT848 card
joehenley at kc.rr.com
Tue Nov 27 04:45:53 UTC 2012
> Why? Is the frontend by the treadmill not powerful enough for the HDPVR
> stuff? If that's the case consider a VDPAU card with s-video or composite
> out (you'd be looking at an 8400 or thereabouts card). Must be better
> recording everything twice.
> Alternatively transcode your HDPVR recordings to something the treadmill
> frontend can play back?
Thanks for the reply. Yes, the FE by the treadmill is very limited.
And I don't want to spend any money (eg., new video card) on something
which will soon/eventually die. What I have for a FE works just fine
for Std def and the TV is std def. They do, and have, worked fine for
The issue is the BE. I have an IVTV based PVR-350 which used to provide
std def for the FE/TV pairing above. And it provided the audio info to
the recording data. But there is a problem with the IVTV drivers in
Myth version I use (0.25.2) which results in random occurrences of
tearing of the top 15 to 20% of the screen. Lots of damage to the WAF.
There is a patch floating around which "might" fix the problem --- as
soon as someone on the development team for ivtv drivers looks at/fixes
it. Looked at the date of the last update to that driver? I ain't
holding my breath. They have lots of issues to work on with currently
popular/selling hardware, I doubt the older 150/250/350/500 series
drivers will get much love for awhile.
So I pulled the 350 from the BE and stuck the BT848 in its place. I
(IIRC) think it worked fine several years ago, but I can't remember or
find out how to do it anymore. Actually the question is probably more
about the audio stuff anyway. So I still am hoping someone who still
uses a BT848 card, or remembers how its done, can offer some help.
PS: Yes, I could transcode stuff from the HD-PVR. But that still
leaves me with the (admittedly few) simultaneous recording needs. Right
now there are two cases each week where the HD-PVR is recording
something in HD and the BT848 or PVR-350 needs to be recording something
else in SD.
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