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Audio Lags Video on Some PVR Recordings with AIW X800XT/Best Settings?

 
 
gary
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      12th Jun 2006
Have AIW X800XT, MMC 9.03, CAT 6.1, last version that works
with MMC 9.03 from what I hear. Dell D-8300, P4, 3GHz with
HT, 800MHz FSB, 2GB RAM, recording on new 2nd hard drive I
just added for recording TV shows (a Seagate 400GB hard
drive, 16MB cache). I hope the equipment and PSU is
sufficient and not causing the lag.

Anyway, some recordings will be OK, some the audio will lag
just about a second, enough to drive you crazy. Even when
just VIEWING the TV program, sometimes the audio will lag.
Usually, I have to re-boot, and not start any other apps
before recording to get a decent recording. Anyone else
have to do this?

Have the presets set for highest quality, and CBR (Constant
Bit Rate) vs. Variable, in both the MMC PVR recorder, and
also with my Pinnacle 9 (latest updates). Have
SoundBlaster Audigy 2-ZS.

I almost always record from the same TV channel, Spike, and
have a signal booster on the coax cable. What I don't
understand is why some recordings are sync'd OK, and some
are not. You just don't know until the recording is over.

Sometimes the lag happens AFTER burning the DVD, and not on
the recorded video. Sometimes, after using Pinnacle to edit
out the commercials, set chapter marks, and burn the DVD
(always burn to HD first, then burn to DVD), the audio
"slips" a bit from the video. Again, not always.

It seems there are "points of failure" on the PVR side, and
then on the video editing/burning side. In other words,
everything has to be "just right" with all processes, or the
audio will lag.

If anyone has any other tips (other than buying new
hardware, which is my last resort), would greatly appreciate
it. Here are my current PVR settings. Would love to hear
from others on their settings, what works best for them:

In the PVR Map Presets, am using a slightly modified version
of DVD High-MPEG-2. What's the difference between "ENCODE
INTERLACED" , "DEINTERLACE" and "PROGRESSIVE"? Right now
I'm using "ENCODE INTERLACED." Does this have anything to
do with dropped frames?

Also in # of P Frames, setting is at 5. Number of B Frames
in Subgroup is at 2.

Video Encode Parameters set to Constant Bit Rate, at 8.00
MBit/Sec, right in the middle, and AUDIO ENCODING PARAMETERS
set to 224 KBit/Second, right in the middle.

Video Soap set to "light." Using Combo Filter 1, Strength 15%.

Lastly, on MMC master configuration, in Audio/Video tab,
have "ENABLE DYNAMIC COMPRESSION" enabled (checked). The
ADD LFE CHANNEL TO DOWNMIX is NOT checked.

Thanks again for any advice.
Gary.
 
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