How to sync audio/video (4308/3930)

Discussion in 'AV Receivers & Amplifiers' started by avekoder, Jan 14, 2008.

  1. avekoder

    avekoder
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    Hello people,

    I have finally received the equipment AVR-4308, DVD-3830 and a Philips 42PFL7862D. It's all nice.

    But, when watching a DVD, there's a a long delay between the audio and the video.

    I run 1080p from 3830 to 4308 over HDMI, and this is passed to the TV over HDMI.

    The audio is almost 1 second ahead of the video. I have toyed around with the "Auto-Lip Sync" on the 4308 and some other "sync-settings" on the 3830, but no luck.

    Any ideas on how to get the audio and video synced?
     
  2. Warpaint

    Warpaint
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    On the 4308 Switch Auto Lip Synch off.

    adjustment range is 0 - 200ms (Try somewhere around 80ms or 120ms)

    Copied from manual page 47

    Operating from the main remote control unit
    Press the A. DL button.
    Use the < > button to set. (button 10 on remote)
    &#8226; This cannot be adjusted when playing in the EXT. IN, DIRECT or
    STEREO mode (with &#8220;Front&#8221; set to &#8220;Large&#8221;, &#8220;Tone Defeat&#8221; to &#8220;ON&#8221;
    and &#8220;Room EQ&#8221; to &#8220;OFF&#8221;.)

    See button 6 in the attached pic.
     

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  3. Jase

    Jase
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    The 3930 will also automatically adjust the Audio/Video sync depending on the display settings you select. Go into the Video Setup menu, AV Synchronized and select the output you're using (HDMI). The other option is to use the 4308 manual adjustment as Warpaint has suggested.

    The 3930 also has a manual adjustment so can additionally try that. Turn the Video Mode button on the front panel until Audio Adjust appears then press the button in, you can then adjust the audio delay.
     
  4. sanderdvd

    sanderdvd
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    In the option menu of the 4308 there is the option called LIP SYNC which you can put ON or OFF. I know that lip sync troubles are differences in the audio and picture but would like to know WHAT the denon exactly DOES when enable lip sync in the menu. And shouldnt this option supposed to be under the AUDIO menu and not the VIDEO menu where it is now?

    Is on or off recommended?
     
  5. Jase

    Jase
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    With video processing it sometimes (usually!) takes a certain amount of time to process the signal (scaling, deinterlacing etc) so the sound ends up ahead of the image. Audio delay will correct this. Depending on the equipment, some do it automatically, others need manual adjustment, or others like the Denon's have both.

    It's under Video as that's where the errors usually occur as it's part of the video processing.

    Try the setting to on if you're using HDMI sources as the Auto Lip Sync option is part of the HDMI 1.3a spec. Failing that, use the manual adjustment if it's needed.
     
  6. Warpaint

    Warpaint
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    Bear in mind that HDMI will default to the lowest version in the chain.
    As the Auto Lip Sync function is part of the 1.3 spec it won't function unless you also have a 1.3 source and display.
    This is why I suggested turning it off which then allows you to manually set the delay.
     
  7. MJeeves

    MJeeves
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    That's interesting. Has anybody else had lip-sync issues with the 3930 and the new Denon receivers ? I'm getting a 3808 hopefully but I HATE lip-sync issues...

    How did you get on Avekoder ?
     
  8. macker89

    macker89
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    Ok, heres an odd one. My 4308 squirts out hd-dvd @1080p/24 to my panasonic ae2000 pj and I'm finding that the sound lags behind the picture. I have to admit that I forgot the auto lip sync is on so I'll go home and turn it off to see if that cures it...but weird !!:rolleyes:
     
  9. MJeeves

    MJeeves
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    That will be interesting to know. Thanks.
    Hope you can sort it!
     
  10. macker89

    macker89
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    Ok, switched off auto lip sync and my pj's picture is still slightly ahead of the sound, no matter which source I'm using !!??? :rolleyes:
     
  11. thestiffmeister

    thestiffmeister
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    Old thread I know but I'm having sync issues with the 3930, I've tried upgrading to the latest firmware but no joy. Did you ever sort it out?
     

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