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Audio Sync problem on broadcast HD programs

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Old 02-11-2006, 01:34 PM   #1
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Unhappy Audio Sync problem on broadcast HD programs

I have been reading as many posts as possible on this audio sync issues. Mostly broadcast HD programming a and standard broadcasts that the station/cable company convert to HD seem to have the worst problem.

I watch the news on the the cables analog side and it's audio is perfectly synced. I switch to the digital cable channel and there is a slight varience. When I switch to the HD version of the same news or local program, the audio is off by a second or more.
I have had two HD stb's with the same results. Now I have the SA 8300 with DVR and it to has the delay. Watching a recorded version of the olympic opening ceromonies and sure enough, the recorded version has the same sync problems.

Any idea when the broadcasters will find a solution to the HD audio sync problem?

It is a broadcast/cable company (satelite included) problem and it needs to be fixed and soon.
If not, I fear HD broadcast TV is doomed.
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Old 02-11-2006, 11:26 PM   #2
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I receive OTA HDTV and my audio sync is off just a tiny bit. So little that my wife hasn't said anything. Seems like everything is like a half of a syllable off.
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Old 05-06-2007, 08:29 PM   #3
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Default HDTV: Great picture, but out of sync with the audio

Quote:
Originally Posted by Rich G View Post
I have been reading as many posts as possible on this audio sync issues. Mostly broadcast HD programming a and standard broadcasts that the station/cable company convert to HD seem to have the worst problem.

Any idea when the broadcasters will find a solution to the HD audio sync problem?

It is a broadcast/cable company (satelite included) problem and it needs to be fixed and soon.
If not, I fear HD broadcast TV is doomed.

About 12 days ago, I purchased a new 42-inch Toshiba Hi-Def TV and looked forward to viewing improved picture quality.

Well, HDTV really DOES look better than "standard" definition. But on almost every HD channel, the audio is out of sync with the action on screen!

Today, I choked back a tear (well, almost) when the store's installers returned to my house to take away my new HDTV system. After nearly two weeks of looking at pictures that are out of sync with the audio, I had had enough. Repeated calls to DirecTV elicited replies like this:

"Sir, we are aware of the problem. We are working on it and hope to have it resolved as soon as possible."

Tomorrow a.m., my wife and I will return to the electronics stores to try and find a new, LOW-def TV. Surely there must be some still around.

Cheers,
Dan
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Old 05-06-2007, 10:29 PM   #4
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Quote:
Originally Posted by daneldorado View Post
About 12 days ago, I purchased a new 42-inch Toshiba Hi-Def TV and looked forward to viewing improved picture quality.

Well, HDTV really DOES look better than "standard" definition. But on almost every HD channel, the audio is out of sync with the action on screen!

Today, I choked back a tear (well, almost) when the store's installers returned to my house to take away my new HDTV system. After nearly two weeks of looking at pictures that are out of sync with the audio, I had had enough. Repeated calls to DirecTV elicited replies like this:

"Sir, we are aware of the problem. We are working on it and hope to have it resolved as soon as possible."

Tomorrow a.m., my wife and I will return to the electronics stores to try and find a new, LOW-def TV. Surely there must be some still around.

Cheers,
Dan
u will waist your money on old technology set, sure store will love to sell them. occasionally DTV will send program with Audio sync issue, u should have fired DTV rather than returning set.
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Old 05-07-2007, 10:32 AM   #5
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I agree that SDTVs are NOT the way to go for the main viewing TV. I could see buying one for the kid's room until the end of this year MAYBE.

It might be better to just change to cable as your source of stations if your source (DirectTV) is having such problems. At least with cable you do not have to BUY the HD STBs and they are included in the monthly fees.

My cable company has better PQ compared to ANY of the sat companies. I tried Voom (until they went under) and the sound was better with my surround system, but the PQ was still lower than what cable offered. Voom fairly consistently had higher ratings for PQ compared to either Dish or DTV.
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Old 06-05-2007, 11:46 AM   #6
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Default audio sync

Audio sync is a known problem. It takes longer to process the video than the audio, so unless it is compensated for, the audio will be ahead. I have seen it on Comcast and OTA. I don't know if it is created in your TV or by the station or cable company, but sometimes mine is fine, sometimes it is off.
Some higher end A/V receivers have a way to sync it up. JVC digital receivers have an adjustable audio delay function to fix it.

My other problem is the wide variation in volume from program to commercial and station to station. I am using a 2.1 audio system, and I think it makes the problem worse when 5.1 is broadcast with the HD. I tried the Terk volume stabilizer but it didn't seem to do anything. I may try another brand.
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Old 06-05-2007, 12:47 PM   #7
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There are no low def TV's bigger than 32". Anything greater than 37" is now an HDTV. You will have trouble finding anything unless you want a 20" TV.

What I don't understand is why you sent your HDTV back? You know the problem is with DirecTV. They have admitted it. Again just switch to cable - which cable company covers your area?
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Old 06-05-2007, 08:52 PM   #8
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This problem exist with every HD provider I know about-- it is not your equipment . . . it is the broadcaster, cable provider, satellite provider's transmission problem.

I have Insight Communications cable service-- when the problem appears, it is slight to very annoying. I have 3 HD sets and ALL exhibit this problem-- as did my previous cable service, and OTA, and the QAM tuner. The problem just seems a bit worse for the satellite providers -- but their customers have MORE HD channels to see/hear it on . . .
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Old 06-05-2007, 10:47 PM   #9
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Quote:
Originally Posted by Lee Stewart View Post
There are no low def TV's bigger than 32". Anything greater than 37" is now an HDTV. You will have trouble finding anything unless you want a 20" TV.
He should still be able to find the recently discontinued (in March 2007) Sony KD-36FS170 which is a 36" standard def CRT TV with both NTSC and ATSC tuners but no QAM tuner. But 32" does seem to be the upper limit on SD sets still in production...How long they will be available remains to be seen.

If he looks really hard he can still find discontinued analogue sets while inventories last.
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Old 11-22-2010, 10:04 PM   #10
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Default audio wont sync

i just bought a Vizio XVT553SV and pretty much every channel on my dish HD box has lag on the audio. im using the exact same dish box on my 50 Panasonic plasma and i have no lag at all.

i went into the audio setting and changed the lip sync to +2 now its stuck there. i cant change it to anything else. im really starting to regret this TV
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