For the past several weeks I've been getting A/V sync issues in some
(but not all) recordings from my myth box. It was working great
for over a year with just a single 350 doing recording. I added a
500 to the system and that was also functioning well for several
months. Over that time I was using various versions of the ivtv
driver from 0.3.2 up through 0.3.6w. I finally settled on running
0.3.6w and that was working for about 2-3 months with no
problems. Suddenly, out of the blue one day, I noticed a few
recordings with A/V sync issues. It appears that, at some random
point during the recording, a small piece of video is missing but the
audio is fine. This causes the video to be slightly ahead of the
audio (anywhere from <1 to about 2 seconds). At the time I
noticed this I hadn't made any recent changes to the system.<br>
<br>
Since this started I have discovered that one of the tuners on the
PVR-500 is bad. I got that card replaced by Hauppage and, as of
last week, installed the replacement 500. I was hoping that maybe
the bad card had something to do with the issues I'm seeing, but last
night I found another recording with the exact same issue. I need
to go through and check the log files when the recording is happening,
but it's been difficult to determine exactly when things were recorded
and on which tuner. <br>
<br>
I know I haven't provided much information as I'm not at home at the
moment, but I can provide any log files that might be helpful in
looking into this problem. Has anyone seen similar sync issues on
recordings? Oh, these are straight MPEG2 directly from the card,
no transcoding is being done, only commercial flagging. Of the
8-12 recordings a day from my myth box I tend to see this problem on
anywhere from 0 to 3 or 4 of the shows. I'm now running ivtv
0.3.8 and still seeing the exact same behavior.<br>
<br>
Any insight anyone might have is greatly appreciated.<br>
<br>
Brad Benson<br>
<br>