[PCWorks] The audio and video of video clips are "stuttering" on Win98SE
- From: "Clint Hamilton-PCWorks Admin-OrpheusComputing.com & ComputersCustomBuilt.com" <PCWorks@xxxxxxxxxxxxxxxxxxxxxxxx>
- To: "PCWorks@xxxxxxxxxxxxx" <pcworks@xxxxxxxxxxxxx>
- Date: Fri, 29 Feb 2008 06:14:39 -0600
I've been banging my head on this one. This is a customer's
PC which has no problems. (Brand new, and OS just installed).
It's 98SE, he had to have that due to some special software.
There are no yellow marks in the Device Manager, and no IRQ
conflicts.
This is an nVidia chipset based mobo, AMD platform,
http://www.biostar-usa.com/mbdetails.asp?model=nf325-a7, and
this time I installed the complete nVidia driver package which
included the audio drivers:
http://www.nvidia.com/object/nforce_udp_win9x_4.27.html .
Previously on the test run I installed the audio drivers from
Realtek (and the mobo drivers on the CD). The nVidia
package only installs some basic AC97 Codec audio, where as the
Realtek files have support for enhanced features set such as
DirectSound acceleration (playback buffers), multi-channel,
audio enhancement, and sometimes will sound inferior to the
vendor's own driver. But, I don't think that would have
anything to do with this, because the problem is with video
files, but it's both audio AND video. (I didn't now about the
differences in driver packages until after the fact).
Win98SE has Windows Media Player 6.0.x on it, so I installed
WMP Classic which is 6.4.9.0. That didn't help.
So the problem is on .avi video files, both the audio and video
play PERFECT, the FIRST TIME. But when the video goes to
repeat, it hangs up for several seconds at the very end with a
blank screen, then finally starts again, and close to the
beginning at the EXACT SAME SPOT every time, the audio will
start going into some kind of a "loop" where like 2 words are
repeated over and over again, 5-8 times. Shortly after, the
video will freeze up briefly but the audio will continue. If I
close the video, and open it again, it's the same way; perfect
the first time, but messes up thereafter.
On .mpg video files, the files will NOT PLAY correctly AT ALL.
The audio and video both stutter, and I can see the progress
bar also stuttering. The audio sounds like some things are
skipped, and also like words are sort of "jammed together" like
two people talking at the same time. BUT, in the .mpg files it
WILL continue on to the very end and start again ok just as it
should!
I thought the problem could be codec related, so I installed
two different large audio/video codec packages, and NO HELP!!
This page closely describes the problem, but I tried to install
it and it's only for WMP7!!
http://support.microsoft.com/kb/305396
What really has be baffled on this, is the videos are the video
clips that's ON THE WIN98SE CD! So there is no reason why they
should not play perfectly on a basic install! No updates are
patches have been installed, but again that should not matter
with these video clips that are from the '98 CD. (Yes, they
exhibit the same behavior when the clips are copied to the HD).
The problem is not slow hardware or memory, because the CPU is
a Sempron 3000+, 1gb RAM, a WD740ADFD Raptor, and an nVidia
GeForce 8x AGP 128mb FX5200:
http://www.gigabyte.com.tw/Products/VGA/Products_Spec.aspx?ProductID=1240
I ran that Direct X Diagnostic tool under "System Information"
and it passed all DX tests. DX9c has been installed. However,
when I tried the "Sound" tabs and ran those tests, it DID NOT
play the "Software buffer" accelerated tests, it only
played/passed the HARDWARE accelerated tests. I would guess
that's due to the nVidia drivers installed instead of the
Realtek. But again, that is AUDIO, and the problem is VIDEO
clips. So I don't see how that could be the problem.
I'm rather lost on what to try next. Any suggestions
appreciated.
-Clint
God Bless
Clint Hamilton, Owner
http://www.OrpheusComputing.com
http://www.ComputersCustomBuilt.com
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