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steverup50
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No audio on certain files

Jan 11, 2012 8:23 AM

I am using PP version 3.2 CS3. I imported clips that were shot on an XDcam EX-1. They show in my bins as MP4. For some reason, some of the clips do not have audio and some do. I played them in the source monitor and timeline - no audio. The mixer is showing no levels as well. I took the same clips and watched them in the XDcam browser and the audio is there. So there is no doubt audio. I am baffled as to why a few clips have this issue. Any suggestions? Thanks

683 Views   8 Replies   Latest reply: steverup50, Jan 11, 2012 3:10 PM
 
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  • John T Smith
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    1. John T Smith,
    Jan 11, 2012 9:52 AM   in reply to steverup50
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    First - To work with AC3 sound files in Premiere CS3, copy the ad2ac3dec.dll file from the Encore CS3 directory into the Premiere directory

     

    Second - Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037

    What is a CODEC... a Primer http://forums.adobe.com/thread/546811

    What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037

    .

    Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing

    .

    For PC http://www.headbands.com/gspot/ or http://mediainfo.sourceforge.net/en

    For Mac http://mediainfo.massanti.com/

     
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  • steverup50
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    2. steverup50,
    Jan 11, 2012 10:32 AM   in reply to John T Smith
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    John:

     

     

     

    I copied the dll file as instructed and read the threads, but still no help. On a a few of the clips, the video is there, but no audio.  I don’t understand why 90% of the clips there is audio and only a few there is not. In the XDCam browser, I hear the audio fine.

     

     

     

    Steve

     
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  • Ann Bens
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    3. Ann Bens,
    Jan 11, 2012 10:58 AM   in reply to steverup50
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    Run a problem clip through Mediainfo and post a screendump of the analysis.

     
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  • steverup50
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    4. steverup50,
    Jan 11, 2012 11:22 AM   in reply to Ann Bens
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    Ann:

     

     

     

    I went to mediainfo site….IO have Windows 7. Which file should I download.

     

     

     

    GUI v0.7.52 (without installer)

     

    CLI v0.7.52

     

    DLL v0.7.52 (without installer)

     

     

     

    Steve

     
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  • steverup50
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    5. steverup50,
    Jan 11, 2012 11:33 AM   in reply to Ann Bens
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    Ok, downloaded the correct version of MediaInfo. Here is the analysis:

     

     

    General

     

    Complete name                    : E:\Biomet 3i\Interviews 1-10-12\Cam 1 Card 1\BPAV\CLPR\FAUS0402_01\FAUS0402_01.MP4

     

    Format                           : MPEG-4

     

    Format_Commercial_IfAny          : XDCAM EX 35

     

    Format profile                   : Base Media / Version 2

     

    Codec ID                         : mp42

     

    File size                        : 772 MiB

     

    Duration                         : 2mn 58s

     

    Overall bit rate mode            : Variable

     

    Overall bit rate                 : 36.3 Mbps

     

    Encoded date                     : UTC 2012-01-10 23:45:09

     

    Tagged date                      : UTC 2012-01-10 23:45:09

     

     

     

    Video

     

    ID                               : 1

     

    Format                           : MPEG Video

     

    Format_Commercial_IfAny          : XDCAM EX 35

     

    Format version                   : Version 2

     

    Format profile                   : Main@High

     

    Format settings, BVOP            : Yes

     

    Format settings, Matrix          : Custom

     

    Format settings, GOP             : M=3, N=15

     

    Codec ID                         : 61

     

    Duration                         : 2mn 58s

     

    Bit rate mode                    : Variable

     

    Bit rate                         : 35.0 Mbps

     

    Width                            : 1 280 pixels

     

    Height                           : 720 pixels

     

    Display aspect ratio             : 16:9

     

    Frame rate mode                  : Constant

     

    Frame rate                       : 29.970 fps

     

    Standard                         : Component

     

    Color space                      : YUV

     

    Chroma subsampling               : 4:2:0

     

    Bit depth                        : 8 bits

     

    Scan type                        : Progressive

     

    Compression mode                 : Lossy

     

    Bits/(Pixel*Frame)               : 1.267

     

    Stream size                      : 739 MiB (96%)

     

    Language                         : English

     

    Encoded date                     : UTC 2012-01-10 23:45:09

     

    Tagged date                      : UTC 2012-01-10 23:45:09

     

    Color primaries                  : BT.709

     

    Transfer characteristics         : BT.709

     

    Matrix coefficients              : BT.709

     

     

     

    Audio

     

    ID                               : 2

     

    Format                           : PCM

     

    Format settings, Endianness      : Big

     

    Format settings, Sign            : Signed

     

    Codec ID                         : twos

     

    Duration                         : 2mn 58s

     

    Bit rate mode                    : Constant

     

    Bit rate                         : 1 536 Kbps

     

    Channel(s)                       : 2 channels

     

    Sampling rate                    : 48.0 KHz

     

    Bit depth                        : 16 bits

     

    Stream size                      : 32.7 MiB (4%)

     

    Language                         : English

     

    Encoded date                     : UTC 2012-01-10 23:45:09

     

    Tagged date                      : UTC 2012-01-10 23:45:09

     
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  • John T Smith
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    6. John T Smith,
    Jan 11, 2012 12:10 PM   in reply to steverup50
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    Flush all of your video cache folders and re-open the files... and be sure to let PPro finish conforming the files before you do ANYTHING

     
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  • steverup50
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    7. steverup50,
    Jan 11, 2012 2:57 PM   in reply to John T Smith
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    John:

     

     

     

    Is clearing the video cache the same as clearing the internet cache as I would to do in IE9? The cache I have ever cleared was in the browser.

    I am in a Win 7 PC.

     

     

     

    Steve

     
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  • steverup50
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    8. steverup50,
    Jan 11, 2012 3:10 PM   in reply to John T Smith
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    John:

     

     

     

    When I import any folder it gives me a File Import Failure dialog box, but after I hit OK, the files are in the bin.

    Not sure if this has anything to do with the issue. Whenever I import an entire folder or single clip, there is no conforming progress bar. There is no conforming at all.

     

     

     

    Steve

     
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