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  1. I have downloaded a few 720p movies which is in mp4 format. they played well on my computer but when I watch on my hd tv, the audio and video are not playing together. they only play well at the first 30 mins, after that, it looks like the audio is playing slower than the video(or maybe vise versa). same thing happened when i play it on my tablet.

    mkv video also have the same problem and most of them only happen with 720p. i dont think it happen with 480p.

    why did it happened and is there any way to fix it?
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  2. I'm a MEGA Super Moderator Baldrick's Avatar
    Join Date: Aug 2000
    Location: Sweden
    Search Comp PM
    Maybe variable frame rate. It may cause problem on such devices.

    Post the the details from the video. Use mediainfo, view->text.
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  3. Format profile : Main@L4.0
    Format settings, CABAC : Yes
    Format settings, ReFrames : 5 frames
    Codec ID : avc1
    Codec ID/Info : Advanced Video Coding
    Duration : 2h 11mn
    Bit rate : 1 500 Kbps
    Width : 1 280 pixels
    Height : 534 pixels
    Display aspect ratio : 2.40:1
    Frame rate mode : Variable
    Frame rate : 23.976 fps
    Minimum frame rate : 23.968 fps
    Maximum frame rate : 23.981 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.092
    Stream size : 1.37 GiB (93%)
    Writing library : x264 core 130 r2273 b3065e6
    Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x1:0x111 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=abr / mbtree=1 / bitrate=1500 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=20000 / vbv_bufsize=25000 / nal_hrd=none / ip_ratio=1.40 / aq=1:1.00
    Encoded date : UTC 2013-10-10 17:44:13
    Tagged date : UTC 2013-10-10 19:16:19
    Color primaries : BT.709
    Transfer characteristics : BT.709
    Matrix coefficients : BT.709

    Audio
    ID : 2
    Format : AAC
    Format/Info : Advanced Audio Codec
    Format profile : LC
    Codec ID : 40
    Duration : 2h 11mn
    Bit rate mode : Variable
    Bit rate : 112 Kbps
    Maximum bit rate : 198 Kbps
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 KHz
    Compression mode : Lossy
    Stream size : 105 MiB (7%)
    Language : English
    Encoded date : UTC 2013-10-10 17:44:13
    Tagged date : UTC 2013-10-10 19:16:19


    I'm still new to all this stuff so please guide me. One more thing, I think the video is the one that is playing faster because the audio and the subtitle are still playing together.
    Last edited by jow90; 23rd Feb 2014 at 09:30.
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  4. is there anyway to fix it?
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  5. anybody??? i need help here....
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  6. Member
    Join Date: Jun 2012
    Location: USA
    Search Comp PM
    As usual, baldrick hit the nail on the head -- variable framerate.

    You should probably go to whomever you bought this from and demand your money back. Then go buy a legal copy.
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  7. Member hech54's Avatar
    Join Date: Jul 2001
    Location: Yank in Europe
    Search Comp PM
    Originally Posted by jow90 View Post
    but when I watch on my hd tv, the audio and video are not playing together.
    Break out the book for the television and see what it is capable of playing. My LG and Philips TVs have completely different specs as far as file playability.
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  8. Originally Posted by jow90 View Post
    is there anyway to fix it?
    You can convert file with VidCoder
    just set to constant framerate.
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