Movie sound lags

Question

I purchased iTunes movies and when I try to play them using iTunes on my windows 8 laptop, the audio lags and is staticy.  Any ideas?

Answer 1

yes - very much expected if your sound was in the timeline
and set to "Stream". Stream sounds get
embedded into the timeline and thereby forcing the animation
to remain in sync with it - once
removed then the animation is not really in sync with
anything and it's dependant on the speed of
the processor during runtime as to ohow fast the player
renders each frame.
with streaming sound, the player will actually drop frames if
it has to to keep up with the audio.
many developers, if needing to sync animation to time but
have no need for audio, will "record" a
bit of dead/empty soundtrack and place it on the timeline -
repeating and set to stream to keep the
animation in sync with the frame rate.
flash is dynamic - it is not pre-rendered, fixed frame rate
video format - it renders on the fly and
"heavy" animations and/or slower processors will cause slower
playback depending. of course the
differences are very subtle with higher end machines and
movies that are well optimized.
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naplesart wrote:
> Maybe somebody out there can explain this one.
>
> I have the same exact movie clip... both preloaded.
>
> Move With Sound
>
> Movie Without Sound
>
> Why would the movie
without sound be noticeably... 10 + seconds longer
> than the movie WITH sound... this makes no sense.
>
> Can anyone try and explain this?
>
> Thanks in advance.
>