Audio Video sync problem

[JSLayton]

I think it's a known problem, but sometimes when watching recorded programs, if I FF then the audio will be out of sync until I pause for about 3 or 4 seconds to "let the audio catch up". Anyone else having this problem and if so, is there a fix for it?

[GonzoF1]

I'm having it too. As well as random audio dropouts. Funny though, they don't happen during commercials. Only during the actual shows.

I guess I'm always hoping that all of these issues I have are in the software and I remain hopeful that D* will get it all worked out in the future so I don't bug the CSR's about every little problem. Should we be?

[Stuart Sweet]

I have had these problems in the past. Sometimes they go away by putting the unit in standby, or changing the channel. Sometimes a reset is required. Only once was it unfixable - last week - and I just had to wait a day.

What channels are the problem?

[JSLayton]

It was MHD last night, but NBCHD the time before. It's not everytime, just sometimes.

[ndalonzo]

Happened to me last night, recording CSI and watching The Office, both HD. The Office was fine until I fast-forwarded (first 3 minutes), then the audio was about 3 seconds behind the video for the entire rest of the show, pausing did not seem to help.... :nono: It did the same thing last week, same recording setup.

Picture quality looked great though! :lol:

[GonzoF1]

Sometimes a reset is required.

Will I lose all of my info? Record Series requests, priority settings, Custom Channel list?

[ub1934]

More so with mpeg 4 then mpeg 2 , CNN SD / CNN HD & TWC SD / TWC HD

[JSLayton]

More so with mpeg 4 then mpeg 2 , CNN SD / CNN HD & TWC SD / TWC HD

yes

[DrZaiusATL]

Yesterday afternoon the Smithsonian Channel was unwatchable. The audio had to have been about 80 frames off from video. It was the worst that I have seen yet.

[richa65]

This problem has been prevalent for over a year now. Does anyone at DTV even care? I'm not intimately familiar with the MP4 specification, but from what I recall every frame of video and audio has a corresponding timestamp. Is it difficult to match them. Something like this algorithm:

if( audioTS != videoTS )
then I'm *(#&$(# doing something wrong here
some_iterative_approach_to_finding_the_right_piece _of_audio_to_go_with_this _video()

I mean seriously. I know it's not that simple, but is it really THAT difficult? Is it really lower on the priority list than nonsense like networking capabilities?

[tealcomp]

This problem has been prevalent for over a year now. Does anyone at DTV even care? I'm not intimately familiar with the MP4 specification, but from what I recall every frame of video and audio has a corresponding timestamp. Is it difficult to match them. Something like this algorithm:

if( audioTS != videoTS )
then I'm *(#&$(# doing something wrong here
some_iterative_approach_to_finding_the_right_piece _of_audio_to_go_with_this _video()

I mean seriously. I know it's not that simple, but is it really THAT difficult? Is it really lower on the priority list than nonsense like networking capabilities?

+1

[n3ntj]

Yes, the audio and video have been out of sync on several HD networks lately (Nat GEO, Science Channel, Smithsonian, etc.). Worst the past 2 weeks.

[Juppers]

For the NBC shows, that is coming down that way from network. I have verified it with different equipment, and my friend works at our local affiliate and sees the sync issues there at the station as well.

[n3ntj]

Ok, but what about all the other networks? Seems to be most of the newer MPEG-4 networks.