Tim,
It appears that the one-second pad in broadcast programs is gone;
however, CBS starts programs after a 12-second pad for promos. PBS is
smack on the second, in spite of previous compression. NPR is the same
way, even though they tell me they use NTP for synchronization. I don't
know how they do that via satellite and compensate for the delay and
delay variance.
Dave
[EMAIL PROTECTED] wrote:
So, everybody should be glued to the tube
on the occasion of leap and see if
the start of the midnight program is one
second early.
All of my local TV stations (Washington DC area) start programs 10 to
14 seconds late, and my discussions with the few knowledgable broadcast
engineers I've been able to find tell me that this is because of
digital compression on the way to the transmitter site.
Several local radio stations are delayed by similar amounts (I cannot
fathom what audio compression requires such a delay. Of course when I
was in the biz we did all this with copper phone lines... multiple sets
if we needed hi-fi!)
Tim.
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