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Douglas Wagner wrote:
<blockquote
cite="midb442beb0605161515s56f3d3ecp210db38e1da125bf@mail.gmail.com"
type="cite">Ok,<br>
<br>
I've accepted my fate. I'm GOING to get yelled at for posting
this. I know for a fact i've seen this issue come up several times in
the recent past but for the LIFE of me I can't find the threads. So,
i'm going to ask this again.
<br>
<br>
Problem: When I try to play back a recorded ATSC HDTV show (only
those, it seems, shown in high def, see "oddities" next) the audio lags
behind the video by about 3 to 5 seconds. Meaning that you see the
people on the screen speaking and then hear the audio. The problem
GOES AWAY if I drop out of mythtv, and load the recorded video through
Xine. So, my solution so far has been to go into MythTV, to the
recorded shows section, find the show and date, and then go to my video
directory and use xine to play it. Of course this cuts out my remote
(I don't have xine setup on it yet) and the nifty features of MythTV,
so i'm really not liking the solution.
<br>
<br>
Oddities: Several: 1) this happens ONLY on shows recorded in true HD.
My PBS Shows, which are shown in HD but only come out to about 600 Meg
in size (while a show of the same length on ABC Comes out to about 6 -
7 Gig), work just fine when played back via Myth. So, Callou and
Clifford for my kids are fine but alias and boston legal all lag sound
(for instance).
<br>
2) When i'm OUT of mythtv another player plays the audio/video just
fine, so it has something to do with how Mythtv is streaming the audio
in to the video. As I said above xine has no problem. I guess more to
the point, it's how MPlayer streams audio/video as I think that's the
default setup for Myth playback.
<br>
3) This DOES NOT happen in live TV, when myth is playing live TV
everything works JUST fine. Sound/Video syncronization is no issue.<br>
4) THIS WORKED!!! I've not upgraded, i've not changed settings, i've
not done anything I can think of (I did have to re-setup myth due to a
database channel issue, but I THOUGHT I set it back the same way). <br>
<br>
Hardware: pcHDTV 3000 card with ATSC Signal connected directly to it,
nothing comming out of the card (audio and video are recorded streamed
over the PCI bus, not using any patch wires). Fedora Core 5, Pentium
IV 2.8G Hyper-Threaded, 1G memory, ~400g harddrive, all 7200 RPM (IDE,
not SATA). Soundblaster Live! Value Digital sound card.<br>
<br>
Software: MythTV v0.19, Kernel Version 2.6.16_2096 SMP. Mplayer I
believe is setup as the default playback software for recorded streams
(it's the default setting, I don't think i've mucked with anything).
<br>
<br>
HELP! I REALLY don't want to have to keep dumping out of MythTV to
play recorded shows. I'm going to try to re-setup myth to use Xine via
the WIKI instructions sometime later this week, but for the moment, i'm
hopelessly lost. I'm SURE it's something stupid. Oh, and no, pausing
and restarting doesn't seem to help either.
<br>
<br>
Any assistance would be MOST apprecaited.<br>
<br>
--Douglas Wagner<br>
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</blockquote>
I have this problem all the time when watching network primetime shows
in the US. Fox never has a problem but ABC and NBC seem to give me
sound sync problems from time to time. It doesn't happen every week.
Syndicated shows on HD network stations never seem to have a problem
either. I run SVN versions (update every couple weeks) it has shown up
in every version since at least 0.18. I don't use LiveTV all that
often so I can't comment on sync issue or lack thereof there.<br>
<br>
Don't just pause and restart. Fast forwarding a few seconds resyncs
everything for me. You may have to play with the number of seconds
though.<br>
<br>
Chris<br>
<br>
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