Manfredi, Albert E wrote:
But wait. Mark Schubin explained that the ATSC standard fully supports *continuous* lip synch. That the problem is in the receivers, which only seem to bother with synch-up when they are first tuned to the channel, or if the program stream changes format, which apparently occurs rarely. For instance, in an HD program, any SD commercials are transmitted upconverted to HD. And the commercials are (I gather) inserted into the program before compression.
There is one HD MCR switcher model that seems to have a problem. The users actually expect the audio to work.
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