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  1. Everything I say is false koberulz's Avatar
    Join Date: Oct 2006
    Location: Australia
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    I've captured some video from a Foxtel IQHD box via the Hauppage PVR. There was some sort of recording glitch thirty seconds in or so. If I play the M2TS file in Premiere starting before the glitch, it's fine. But if I stop it, then move the playhead anywhere else in the video, the audio is suddenly massively out of sync.

    What in the blue hell is going on?
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  2. Member
    Join Date: Oct 2004
    Location: Freedonia
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    Sounds like dropped frames because of the glitch. VideoReDo (not free) has an option to fix corrupted MPEG streams and sometimes it can help with the dropped frames issue.
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  3. Everything I say is false koberulz's Avatar
    Join Date: Oct 2006
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    Just to clarify, as I now realised I've phrased the OP poorly: if I start watching the video in Premiere before the glitch, the sound remains in sync even after the glitch. If I move the playhead anywhere after the glitch, it then goes out of sync. It plays fine in VLC, even if I jump around.

    It seems more like a Premiere problem than a problem with the actual M2TS file.
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  4. Editors are much less forgiving than media players when it comes to media files. Nothing unusual here.
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  5. Everything I say is false koberulz's Avatar
    Join Date: Oct 2006
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    Given that it plays fine even in Premiere as long as I start watching it prior to the glitch occurring, is it still likely to be dropped frames? I would've thought were that the case that it'd unsync at the point of the glitch regardless of where you started watching it.
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  6. Member hech54's Avatar
    Join Date: Jul 2001
    Location: Yank in Europe
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    Is this H264 capture or mpeg2 capture we are talking about?....or neither?
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  7. Everything I say is false koberulz's Avatar
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    General
    ID : 0 (0x0)
    Format : MPEG-TS
    File size : 13.1 GiB
    Duration : 2h 10mn
    Overall bit rate : 14.3 Mbps
    Maximum Overall bit rate : 18.0 Mbps

    Video
    ID : 4113 (0x1011)
    Menu ID : 1 (0x1)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : Main@L4.0
    Format settings, CABAC : Yes
    Format settings, ReFrames : 4 frames
    Format settings, GOP : M=1, N=64
    Codec ID : 27
    Duration : 2h 10mn
    Bit rate mode : Variable
    Bit rate : 13.2 Mbps
    Maximum bit rate : 20.0 Mbps
    Width : 1 920 pixels
    Height : 1 080 pixels
    Display aspect ratio : 16:9
    Frame rate : 25.000 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Interlaced
    Scan order : Top Field First
    Bits/(Pixel*Frame) : 0.254
    Stream size : 12.0 GiB (92%)
    Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
    Transfer characteristics : BT.709-5, BT.1361
    Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

    Audio
    ID : 4352 (0x1100)
    Menu ID : 1 (0x1)
    Format : AC-3
    Format/Info : Audio Coding 3
    Mode extension : CM (complete main)
    Codec ID : 129
    Duration : 2h 10mn
    Bit rate mode : Constant
    Bit rate : 448 Kbps
    Channel(s) : 5 channels
    Channel positions : Front: L C R, Side: L R
    Sampling rate : 48.0 KHz
    Bit depth : 16 bits
    Compression mode : Lossy
    Delay relative to video : -120ms
    Stream size : 418 MiB (3%)
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  8. Originally Posted by koberulz View Post
    Given that it plays fine even in Premiere as long as I start watching it prior to the glitch occurring, is it still likely to be dropped frames?
    Yes, there is something wrong with the file.
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  9. Everything I say is false koberulz's Avatar
    Join Date: Oct 2006
    Location: Australia
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    VideoReDo did the trick.
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