Re: Jerky playback by AuthorCancerForTwo
AuthorCancerForTwo
Thu Apr 24 14:01:02 PDT 2008
Thanks, Frank, but I tried what you suggested and it didn't make any
difference.
Back to the drawing board!!
"Frank Slootweg" wrote:
> Oops! Sorry! I thought this was for audio(-only) files, but I see that
> it's for video+audio files.
>
> Anyway, *perhaps* the cause is the same as I had (also on XP
> Professional, SP1 or 2 (I don't remember)), lack of System cache for
> buffering.
>
> Try this:
>
> Control Panel -> System -> Advanced -> Performance -> Settings ->
> Advanced -> Memory usage. If it is set to "Programs", change it to
> "System cache". If I remember correctly, you have to reboot to make the
> change effective.
>
> I hope this helps.
>
> AuthorCancerForTwo <AuthorCancerForTwo@discussions.microsoft.com> wrote:
> > Yes, I do!
> >
> > I have tried using the PowerPoint Viewer, but the playback is still jerky,
> > although the buffering thing still seems to fix the problem. That doesn't
> > help me, though, because I can't buffer the video during my presentation.
> >
> > "Frank Slootweg" wrote:
> >
> > > Do you still need help with this?
> > >
> > > On March 27, AuthorCancerForTwo
> > > <AuthorCancerForTwo@discussions.microsoft.com> wrote:
> > > > I have a wmv file that has played just fine for over a year. I
> > > > use it in a powerpoint presentation.
> > > >
> > > > Suddenly it started playing jerky - the audio is fine but the
> > > > video starts and stops at random.
> > > >
> > > > First, the environment:
> > > > a. XP Professional, SP2
> > > > b. Nothing else running on the system per the task manager.
> > > > c. On task manager, media player shows between 45 and 60 % CPU
> > > > while playing the movie.
> > > > d. Running Norton 360.
> > > >
> > > > I upgraded to WMP 11 - didn't help.
> > > >
> > > > I thought maybe the file was corrupted so I renamed the old file
> > > > and made a fresh copy from another computer. Didn't help.
> > > >
> > > > I noticed that if I play the movie a second time (replay) it isn't
> > > > jerky... it's only jerky the first time that I play it. I then
> > > > discovered that all of my clips are the same - jerky the first
> > > > time but not the second time.
> > > >
> > > > AHA! A buffering problem! I enlarged the read-ahead buffer to 20
> > > > seconds. Didn't help.
> > > >
> > > > I'm stumped.
> > > >
> > > > What could have changed, even by mistake, that could be causing
> > > > this? Could Windows Update have changed something on me? Or a
> > > > Norton update?
>