[opendtv] Re: ATSC and Lip Sync
- From: Mark Schubin <TVMark@xxxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Sun, 24 May 2009 18:20:34 -0400
As Craig B. would say, we are in violent agreement.
Cliff Benham wrote:
Mark Schubin wrote:
have you noticed that the commercials are never out of lip sync?
No, I have not. I've seen many out-of-sync commercials. But, if I
quickly change channels and return, they come back into sync (as do
the program segments).
Not trying to be belligerent about digital television problems but the
idea of having to 'change channels' as a momentary fix for lip sync
issues is about like rebooting your PC 'when all else has failed' or
the old joke about what it would be like if Microsoft built cars:
"For no apparent reason your car would just die on the interstate and
you would have to pull off to the shoulder, open all the doors, close
them, then unlock and lock them twice. Only then could you restart
your car and continue driving. Somehow you would accept this as normal
and expect it to happen occasionally."
NOT!
As Craig B. would say, we are in violent agreement.
I point out only that the issue is NOT with the ATSC standard. It
provides for perfect, constant lip sync. Unfortunately, receiver
manufacturers ignore the PTS except when there is a major interruption
(e.g., tuning). And no one is policing receiver manufacturers.
TTFN,
Mark
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