Posted by Roy W. Rising on 12/01/06 22:15

"Brian" <brian.english@sas.com> wrote:

> I think it's impossible to tell looking at a TV broadcast anyway. Half
> the time the audio and video aren't synched up right in the broadcast to
> begin with. I was watching a football game the other day and the
> announcer's mouth moved a good 3 tenths of a second before the sound came
> out of the TV, and he wasn't lip-synching :)

It was far from "impossible to tell looking at a TV broadcast". I found it
quite easy. Further, sometimes she was in sync, so it could not have been
the kind of transmission problem that sometimes causes what was seen on the
football game. More often in that case, there is a video effects device
that slows the picture by a frame or more. The rule for sync perception is
"plus or minus one frame" is OK. More than that, it's noticeable.

--
~ Roy
"If you notice the sound, it's wrong!"

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