High Def - Directv Question

[Bronco_Beerslug]

Finally got my DLP TV. I shouldn't have waited so long the picture is incredible!!!

But does anyone else experience audio sync problems on some of the high def channels (Discovery HD theatre and HDN so far)?

[Willynowei]

It depends.

Could be the audio converter or the video converter.

That DLP display (a very good one) has a native resolution of 720p. (1024x720) so if you are getting a 1080i or 480p signal, the television takes time to upconvert the signal to 720p or down convert it from 1080i. In either case, it will lag behind the audio.

Also, if you are using HDMI, it means the audio signal maybe purely digital, where as if you are using component input, the audio signal is analog. In either case, if your cable box is outputing analog or digital, depding on the wire usage, it will have to convert it from one to the other.

Conversions take time and if your video and audio conversions don't take equal time you will have sync problems.

Usually if you output everything with one single HDMI line, you won't have problesm (if your cable box has that) otherwise you will just have to wait. In any case, its the providers fault if things don't sync up, not yours.

Enjoy the new TV!

EDIT: one more thing, it could just be a signal issue on Direct TV's side. Usually this stuff has to do with conversion, but not always.

[Bronco_Beerslug]

Originally Posted by Willynowei

It depends.

Could be the audio converter or the video converter.

That DLP display (a very good one) has a native resolution of 720p. (1024x720) so if you are getting a 1080i or 480p signal, the television takes time to upconvert the signal to 720p or down convert it from 1080i. In either case, it will lag behind the audio.

Also, if you are using HDMI, it means the audio signal maybe purely digital, where as if you are using component input, the audio signal is analog. In either case, if your cable box is outputing analog or digital, depding on the wire usage, it will have to convert it from one to the other.

Conversions take time and if your video and audio conversions don't take equal time you will have sync problems.

Usually if you output everything with one single HDMI line, you won't have problesm (if your cable box has that) otherwise you will just have to wait. In any case, its the providers fault if things don't sync up, not yours.

Enjoy the new TV!

EDIT: one more thing, it could just be a signal issue on Direct TV's side. Usually this stuff has to do with conversion, but not always.

Interesting stuff! I'm using a HDMI connection form the H20 receiver to the DLP TV. It doesn't happen all the time but every other day or so. The high def movie channels don't have this problem. I called Directv support but of course they were pretty much clueless. They did say they were getting quite a few calls complaining about the same thing.

I can't believe I went this long without high def TV. Watching anything else now is kind of a letdown.

[baja]

I had that problem there is an audio sync adjustment for that in the menu on the HD TV

[baja]

Or maybe the adjustment was in the surround sound equipment, can't remember now

[Bronco_Beerslug]

Originally Posted by baja fan

I had that problem there is an audio sync adjustment for that in the menu on the HD TV

I seen that but it's only on 2 or 3 channels. I'm afraid of screwing all the rest up. It changes it for all of them right?

[baja]

right

[baja]

If it is only on some channels than it is a problem on the broadcast side