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  1. #1
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    Lip sync problem

    Hi.
    I have Philips 55PFL8008S with QF2EU-0.173.52.0

    The problem is lip sync. I have turned the receiver (Onkyo tx-nr709) off and enabled passthrough so that I can use TV audio. The lip moves before the audio comes.

    When the receiver is on the audio from my external speakers is perfect synced.

    If the receiver is turned on and I enable "output the audio to tv speakers" I have the same lip sync problem again.

    I have a HD decoder from my Cable provider.

    Onkyo tells me the problem is the TV, not the decoder.

    Any ideas?

  2. #2
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    Unhappy Also experiencing lip synch issues with TV sound

    Can't help you, just wanted to say that I am experiencing lip synch issues with my new 46PFL8008S as well.

    I have it connected to a set top box from Altibox (https://www.altibox.no/) HDMI 50Hz 1080i and lip synch seems to drift in and out. It is very noticeable. I don't have a receiver, just HDMI from the set top box to the TV, audio plays through the TV. Netflix on AppleTV or Chromecast seems a bit better but also seem to have slight lip synch issues.

    I otherwise love the TV but this issue is unbearable, it will have to go back unless this can be fixed. I have downloaded the latest firmware but it did not make a difference. My previous Samsung TV did not have this issue using the same equipment.


    Quote Originally Posted by B|G1 View Post
    Hi.
    I have Philips 55PFL8008S with QF2EU-0.173.52.0

    The problem is lip sync. I have turned the receiver (Onkyo tx-nr709) off and enabled passthrough so that I can use TV audio. The lip moves before the audio comes.

    When the receiver is on the audio from my external speakers is perfect synced.

    If the receiver is turned on and I enable "output the audio to tv speakers" I have the same lip sync problem again.

    I have a HD decoder from my Cable provider.

    Onkyo tells me the problem is the TV, not the decoder.

    Any ideas?

  3. #3
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    My HD decoder is a new one from Get (www.get.no), 1080i and Dolby enabled. (The problem is the same with 720p and dolby disabled). It is really annoying!

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    Yes it is very annoying. Other thread with similar issue here:

    http://www.supportforum.philips.com/...-delay-on-HDMI

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    Setting output to Stereo on the TV and to "2 channel" on the set top box (as suggested in the other thread) seems to have fixed the lip synch issues for me when watching TV.

    Will need to experiment more when using Chromecast and AppleTV to see if anything can be done there.

    A permanent firmware fix would of course be better.

  6. #6
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    Nice, buying the top model with issues. How can they sell a tv with this issue....setting it to stereo didnt help. Also tried various audio delay on my decoder...

  7. #7
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    Yes, I basically agree, we should expect this to just work. And I don't think setting the TV to stereo did anything because I had already tried that. But setting the decoder to "2 channel" instead of "PCM AC3" worked for me for at least watching TV.

    I goggled lip synch issues and found many cases involving Philips but also other major makes. Looks to me like the TV's are rushed to market without mature firmware. I have for after just a week experienced several "crashes" while navigating the menu system, requiring turning the TV on/off or even disconnecting the power on one occasion. These usually happen if I try to "rush" the navigation.

    Hopefully someone from Philips will reply to the annoying lip synch bug soon.

  8. #8
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    Hopefully android will be better!! I wish I could format this TV and install android

  9. #9
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    Has anyone been able to fix this? it's been months now, and for me no changes (it even feels like it's getting worse - getting closer to the 1s delay, although changeing cable channels seems to reset the delay back to something 'better')

    since it hasn't been fixed by any of the latest firmwares, i was wondering if anyone had found a workaround to this.

    my setting:
    55PFL8008k/12 with latest firmware (173.052)
    cable box on HDMI
    XBOX 360 on HDMI

    i use both the cable box or the cable company app on the xbox for VOD. both have the same crappy lip sync issue. Apps on the TV (such as netflix for instance) are fine though.

    on another older TV (LG) there is no lipsync issue with any of these equipments.

    I know that Philips (Ina) hasn't really been vocal about this issue despite the many complaints, including the official firmware release feedback topics... sounds like Dell a few years ago, i just hope they react faster and learnt from other people experience. A 2,000 euros tv with lipsync issues that didn't exist a few releases ago is not really a future-proof prospect...

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    Bought a 55PFL8008K last month. No issues with Humax 5050 decoder through HDMI. But when playing HD movies from Mede8er, video comes first, sound a lot later. No matter how I connect this device, through HTS or directly to the TV.

    Hope Philips reads these posts as well :-)

  11. #11
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    @Jeroen1972: Did you try your Humax with a TV channel that offers a DD 5.1 audio track in addition to the regular stereo track? Please try it with a DD 5.1 track active and check if you have the delay then.

  12. #12
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    Quote Originally Posted by MauriceW View Post
    @Jeroen1972: Did you try your Humax with a TV channel that offers a DD 5.1 audio track in addition to the regular stereo track? Please try it with a DD 5.1 track active and check if you have the delay then.
    i have actually noticed (although i wouldn't know how to measure this to confirm my feeling with hard data) that the delay increases over time. in which case compensating with audio output set delay is not sustainable as the delay is not a fixed value.

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    Quote Originally Posted by MauriceW View Post
    @Jeroen1972: Did you try your Humax with a TV channel that offers a DD 5.1 audio track in addition to the regular stereo track? Please try it with a DD 5.1 track active and check if you have the delay then.
    Yes, indeed, with some channels that send 5.1 there is a delay aswell. Unbelievable, never had any problems with same equipment on mij other Philips not-smart TV. Wish I stayed with the old one.

    New firmaware did not fix anything.

  14. #14
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    Sometimes outputting stereo sound instead of DTS, 5.1 etc. does fix the problem, but on some devices / software, it's not possible to manually select this function, or it does not work right even if selected. So it's not a fix saying "please use stereo sound only". A permanent solution must be found by the software department.

    This issue is most obvious when you connect PS4 or Wii U gamepad to the TV. The game pads of these video game systems have built-on speakers on them. In some games there should be the same audio coming from the controller and tv-speakers, to add a bolded effect to the sound. Ofcourse, as the TV isn't able to reproduce the AV in correct sync, you always hear the echoed version from the TV-speakers. I have reported the bug on March, including this video, where you can hear how the controller is totally out of sync with the tv

    Youtube - Philips PS4 Sound lag problem

    I also tested this PS4 sync test with samsung tv, and on thomson tv: both of which played back the audio perfectly in sync with the controller, with no echo to be heard.

    Also when playing video files with XBMC, there's a possibility to fiddle around with the audio timer. Either make it come sooner or later. I have found that on movies with DTS sound I need to set it to come aboutish 300ms sooner to get the lipsync pretty much fixed. It kind of seem to vary between different kind of audio formats a bit though.

    Still, this is a huge issue. I just don't understand how it's not fixed. It's been there over half year now.

    Ina send me a private message asking details about the issue a short time ago. Let's hope they are really working on it this time.

    (btw. She asked me / other users the same details on march also - we provided it all in detail. That clearly did not have any impact)
    Link
    Last edited by antti-la; 08-13-2014 at 08:22 AM.

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