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Discussion Starter · #1 ·
I have had Verizon Fios for the last 5 years with a cable card in my windows 7 computer using a Ceton Infinitv 4 cable card tuner. Never has any lip sync problems. I'm in the Harrisburg,PA area.

We just changed to Comcast and now have lip sync issues. The problem only seems to be on the local HD channels. Other cable HD channels are fine. The audio is actually ahead of the video. It's usually the other way around. I don't think it's a bad cable card. Weird?
 

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I doubt it. I am pretty sure the cablecard only decrypts the transport stream packets and downstream hardware likely demuxes these decrypted transport stream packets into audio and video to go to the appropriate decoder on the device.
 

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