Question about Hitachi 42HDT52 42 in. Plasma HDTV

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Audio Sync Problem with Local HDTV Broadcasts

The audio synce is almost a full second off on all local HDTV broadcasts. I looked extensively through all menus and could not find any adjustments. I have also looked for any programming updates and could not find them also. Can anyone offer a direction to go for help?

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Solution here
www.felston.com

Posted on Sep 18, 2008

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2 Answers

Lip sync problems


that is a network problem nothing consumer can do about it .

Sep 29, 2015 | Televison & Video

1 Answer

Lip sync


Vizio HDTV- Lips out of sync

Anyone with a new Vizio E601i-A3 60" or 70" HDTV that is having audio "Lips out of sync problems" with a cable or satellite box.

On Comcast cable boxes (or others), here's what you need to do: FIND MENU for AUDIO or HDMI setup on CABLE BOX or Satellite Box.

FOR COMCAST

1. Turn on TV and have Cable box Turned OFF.

2. Press MENU on COMCAST REMOTE.

3. Go to AUDIO Setting OR HDMI Setting. (On cable or Sat. BOX)

4. Change setting from Auto to L-PCM. (Turn off cable box to exit)

This should resolve any "out of sync" lips to picture after commercials on HD channels.

*This is a handshaking issue from the cable box to the Vizio E601i-A3

Dec 08, 2012 | Vizio 60" E601I-A3 Full HD LED-LCD TV

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My LG - HDTV picture and sound do not match. Whenever there is a "talking head" in the picture, it looks more like a "Godzilla movie" where the actor screams "Godirra" in...


On network broadcast television regardless of source, if there is incorrect audio to video synchronization then it is a problem with the source network and not your television.

Call them (the company providing your broadcast service) and tell them your audio and video are not in sync.

Nov 01, 2010 | LG 42LG70 42 in. LCD HDTV

1 Answer

Tv has sound on all channels but one. Had sound but 30 min later no sound. When watching two tv's on same channel the one with no sound was lagging behind other tv not in sync as all other tv's in house...


Check to see if your audio source is set to SAP. This stands for secondary audio program. For example, some stations broadcast english and spanish. Some stations broadcast english and nothing. If you are on a channel that broadcasts english and nothing, and you are SAP setting, you will hear nothing.

Jul 03, 2010 | Sony KDF-E42A10 42 in. LCD Television

1 Answer

What do i need to make my SDTV show any channels?


A decoder or set-top box to receive high-definition broadcasts you can find them at local electronic stores

Dec 18, 2009 | Audio Players & Recorders

1 Answer

Jerky video on antenna feed of ABC network programming


You didn't say so but I believe the TV you're using that having the problem is a TV that uses motion compensating frame interpolating technology... a common feature with 120hz and 240hz LCD TVs. I have one of these types of TVs and I have this issue with ABC as well. ABC has begun dropping video frames from some of their primetime shows (the ones that start at the 8e/7c time slot seem most effected) to speed up the broadcast to a point where they can get an extra commercial in. On normal TVs, including the older 60hz LCDs, this is not really noticeable. However, for the motion compensating frame interpolating technology, the TV's video processor must sync up with the 'telecine' processing (conversion from the originally filmed 24fps to broadcast 60fps) so that it can eliminate the copied frames that the telecine processing produces before it can create the interpolated frames between the original frames. When the TV's processor hits a missing frame, it loses sync and has to rejoin and causes the jerky motion you're seeing.

For a solution, you can turn off the motion compensating frame interpolation tech on your TV. Each manufacturer calls it something different but the name will have something to do with smoothing out motion like 'Smooth Motion'. In this case, you need it off for the motion to be it's smoothest (not the case with most TV though).

For a better solution, send a complaint to ABC and your local ABC affiliate.

Dec 12, 2008 | Proscan 47LB45H 47 in. LCD TV

1 Answer

1- I have a Panasonic TV (PT-53TW54)that has a "digital scan rate of 1080i,540P". I'm not sure if that means it has a digital tuner. Do I need a digital converter for this unit? 2- I'm using a...


1. Do I need any additional equipment to watch HDTV broadcasts on my HDTV-compatible TV?
In order to view over-the-air (OTA) HDTV broadcasts, you need to be within the reception area of a TV station broadcasting HDTV signals. Some TVs may require a set-top HDTV tuner and an external antenna to receive the broadcasts. Your cable or satellite provider may also offer HDTV channels as a part of their service, eliminating the need for a separate tuner. Please contact your local service provider to find out what kind of HDTV services they may offer.

2. What is CableCARD and how does it work?
HDTVs with CableCARD slots can accept a small card from your cable provider that allows you to receive standard definition and high definition digital broadcasts without a bulky set-top cable box. Please call your cable company to find out if they offer this service in your area.

btn_top_gold.gif spacer.gif line_gold.gif spacer.gif spacer.gif3. What is HDMI? Is it compatible with DVI?
HDMI, which stands for "High-Definition Multimedia Interface", is the consumer electronic industry's first connection capable of transmitting uncompressed digital audio/video signals. Components featuring HDMI can transmit both digital audio and video over one convenient cable, replacing the tangled mess that resides behind many home theater components. HDMI also offers improved quality over traditional analog connections thanks to all-digital transmission. Digital sources like DVDs and HDTV programming can now be transferred digitally from source to display without analog conversions that can degrade the original signal.

Unlike the HDMI interface, DVI only handles digital video. Through the use of an adapter, a DVI device can be connected to an HDMI device, but only video content can be transmitted. The audio signal would have to be transmitted through other methods such as analog RCA outputs or an optical digital output.

4. What's the difference between 720p and 1080i HDTV broadcasts? Does my CRT projection HDTV support both?
HDTV signals can be broadcast in either 720p and 1080i. It's up to the broadcaster which signal format to use, and both have their benefits. Our CRT projection HDTVs display 1080i signals in their native format. For 720p broadcasts, you can use the settings on your HDTV set-top tuner, cable box, or satellite tuner to convert a 720p signal into a 1080i signal that your TV can display.

btn_top_gold.gif spacer.gif line_gold.gif spacer.gif spacer.gif5. Why do I still see black bars on my widescreen TV when viewing certain widescreen DVDs and HDTV broadcasts?
Your widescreen TV has an aspect ratio of 16:9 (1.78:1), which is the aspect ratio of HDTV. However, movies are filmed at several different aspect ratios, including 2.35:1. Also referred to as "scope", 2.35:1 is a very panoramic aspect ratio that provides a wide field of view in the theater. Scope is much wider than your widescreen TV, so it still requires the use of letterboxing ("black bars") to fit the entire image on screen. Some TVs and DVD players have a zoom function that allows you to blow up the image so it fills the screen, but the sides of the image must be cropped in order to do so.

6. What will 4:3 broadcasts and DVDs look like on a widescreen TV?
There are multiple settings for adjusting the appearance of 4:3 material on Panasonic widescreen TVs. It can be viewed with black bars on the sides, preserving the way it was originally intended to be viewed. Some viewers find the black bars distracting, so they might prefer one of the stretch modes that lets you fill the entire TV screen with the image. One such mode is the JUST (justify) mode, which stretches only the outer portion of the picture while leaving the center untouched.

Oct 21, 2008 | Panasonic Televison & Video

2 Answers

Sound/Video delay


Lip-sync error is a widespread problem caused when video is delayed and audio arrives too soon. Widespread enough that three different manufacturers make dedicated products to address it, in fact (see review link below for those three). It is present to some extent in essentially all broadcasts and DVD?s. If you have a recently acquired DLP, LCD or plasma display it may have added enough additional video delay to make it noticeable but lip-sync error comes from MANY sources starting at image capture and continuing through post production and broadcast or DVD encoding and it is cumulative. There is usually enough lip-sync error in broadcasts and DVD's to cause a negative impact on viewer perception (Research done at Stanford showed this.) Many people don't consciously notice it until it gets very large because it's such an unnatural phenomenon ( audio can't come before the action causing the sound in the real world) we apparently subconsciously avoid looking at the faces and seeing the lips move "after" the sound from them is heard. A study at Stanford proved this causes negative viewer perception even for those who don't notice it so this is something we all need to notice as you already have. For those reading this who haven't noticed it, take a close look at the LIPS - force yourself to overcome your natural avoidance mechanism that keeps you from looking at the lips - and you will see lip-sync error you never noticed before. I think you will be amazed that you could possibly not have noticed it before. You will be seeing what JC is seeing. I even see it now on CRT TV's and am amazed I never noticed it so it's very obvious some avoidance mechanism is at work. And back to JC?s solution: I'd recommend one of these digital audio delay units. That way you can correct for ALL cumulative lip-sync error no matter what its source might be. Any one of these units reviewed will correct it ALL. With any one of these units you can adjust for perfect lip-sync at the start of each DVD or broadcast and not disturb the image you are watching during that fine adjustment. I have had a Felston DD340 since 2004 (three generations earlier than the DD740 covered in the review) but it still has the most important feature of all these units from these three different manufacturers which is their "plus and minus" buttons on their remotes that allow you to tweak the delay while watching your material without upsetting the video your are watching. My av receiver has a built in delay of 80 ms which isn't even enough audio delay to offset the video delay my plasma display adds but even if it were it isn't practical to adjust it for the changes in lip-sync error from program to program and DVD to DVD since it overlays the screen with menus when making the delay adjustment. With my DD340 (and any of the units reviewed) all you have to do is press the plus or minus button until you get perfect sync. Here is the review I mentioned: [URL="http://www.audaud.com/article.php?ArticleID=3011"]

Aug 30, 2007 | Audio Players & Recorders

1 Answer

Audio vs Video


Happens mostly on your local channels right? This is a issue with the local broadcaster and not directv. Due to the digital transition this has been a widespread issue. Until the local affiliate for NBC, ABC, etc. fully transmit a digital signal then this sync problem is to be expected.

Mar 17, 2007 | Insignia IS-LCDTV32 32 in. Television

2 Answers

Audio in spanish when spanish is broadcasted


consult your service manual it has all the informaton you want.goodluck.f you do not have a service manual check with www.partstore.com

Nov 18, 2006 | Toshiba 24AF45 24" TV

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