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Sony m2ts files had sound but now they don't

Jul 6, 2012 4:52 AM

Tags: #no #audio #sony #premiere #import #sound #m2ts

Hello.
I was working for a long time on a PC with Pinnacle Studio 14.   This worked fine with m2ts files from my Sony HDR-SR8 although the output always disappointed me, it seemed soft or it seemed to have lines in it depending on what settings I tried.   I wanted to advance my video editing skills, knowledge and ability so I went with Avid Studio.  This would not work properly on my PC and was left to rot on the hard drive.  So I decided to get through the learning hump and go for Premiere (and later the intention of learning After Effects too).  

Premiere Pro CS6 trial worked with the very same m2ts files that I used in Pinnacle.   I made a few simple home movie projects and mostly I was thrilled with the perfect output quality that encouraged me to go on using it.  At some point I decided to get rid of the other software that I was no longer using to free up hard disk space.  I removed Pinnacle Studio 14 and Avid Studio and another few unrelated bits of software that I considered unused and redundant.   Now Premiere won’t play the sound from the m2ts files.  The same ones that I used before in Premiere won’t play sound now.  The only real clue I have is opening an old project that I was working on.  I get this error message:
“This project contained a sequence that could not be opened.  No sequence preview preset file or codec could be associated with this sequence type.”
Thinking that some codecs were removed I re-installed Pinnacle and Avid.  No luck.  Thinking that they were installed first ahead of Premiere I removed everything, reinstalled pinnacle, then avid, then premiere.  No luck.  I’ve tried loads of combinations.  I downloaded and installed CCCP codecs again.  I installed the Premiere update 6.0.1.  No luck.  I've removed all Adobe products, run the Adobe cleaning tool, did restarts etc etc etc.

 

So the facts is Premiere did work properly on this pc.  So whatever is wrong is something small like a codec missing or a missing registry entry.

 

:/

945 Views   9 Replies   Latest reply: TOP FOTO, Jul 6, 2012 9:56 AM
 
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  • Harm Millaard
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    1. Harm Millaard,
    Jul 6, 2012 5:57 AM   in reply to TOP FOTO
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    That seems like a logical conclusion. The question remains however, which codec is missing? What does MediaInfo tell you about the codec in use?

     
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  • TOP FOTO
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    2. TOP FOTO,
    Jul 6, 2012 7:04 AM   in reply to Harm Millaard
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    Hi Harm.  Feeling like a total noob here.  I downloaded MediaInfo from the web just now, I hope that's what you meant since I'm entering a new anorak world here   Here's the read from it:

     

     

    General

    ID                                       : 0 (0x0)

    Complete name                            : S:\Video Cam Files\04-07-2012(2)\20120701111507.m2ts

    Format                                   : BDAV

    Format/Info                              : Blu-ray Video

    File size                                : 9.94 MiB

    Duration                                 : 5s 130ms

    Overall bit rate mode                    : Variable

    Overall bit rate                         : 16.2 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                : 2 frames

    Format settings, GOP                     : M=2, N=13

    Codec ID                                 : 27

    Duration                                 : 5s 120ms

    Bit rate mode                            : Variable

    Bit rate                                 : 15.1 Mbps

    Maximum bit rate                         : 16.0 Mbps

    Width                                    : 1 440 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)                       : 0.389

    Stream size                              : 9.23 MiB (93%)

     

    Audio

    ID                                       : 4352 (0x1100)

    Menu ID                                  : 1 (0x1)

    Format                                   : AC-3

    Format/Info                              : Audio Coding 3

    Mode extension                           : CM (complete main)

    Format settings, Endianness              : Big

    Codec ID                                 : 129

    Duration                                 : 5s 216ms

    Bit rate mode                            : Constant

    Bit rate                                 : 448 Kbps

    Channel(s)                               : 6 channels

    Channel positions                        : Front: L C R, Side: L R, LFE

    Sampling rate                            : 48.0 KHz

    Bit depth                                : 16 bits

    Compression mode                         : Lossy

    Delay relative to video                  : -80ms

    Stream size                              : 285 KiB (3%)

     
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  • Harm Millaard
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    3. Harm Millaard,
    Jul 6, 2012 8:26 AM   in reply to TOP FOTO
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    Well, the source material was HDV, but the material you are using was encoded to BRD format, using 5.1 audio and it not suitable for editing. I would try to get the original footage from the copyright owner.

     
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  • TOP FOTO
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    4. TOP FOTO,
    Jul 6, 2012 8:47 AM   in reply to Harm Millaard
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    It is the original footage from my Sony HDR-SR8 camera.  And the (not so) funny thing is that I have all of the Sony software installed to!.  I guess that media info app is misleading. :/

     

    http://esupport.sony.com/US/perl/model-home.pl?mdl=HDRSR8&LOC=3&sessio n_id=756b556d028a8c7903635c697aa2fec6#/howtoTab

     
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  • Jeff Bellune
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    5. Jeff Bellune,
    Jul 6, 2012 9:11 AM   in reply to TOP FOTO
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    MediaInfo is accurate -- the source footage from the camera is AVCHD that looks like it's in a M2TS wrapper.  The camera records to an internal HDD, so maybe Sony decided on the BD file format because of that.

     

    Check Premiere Pro's preferences for your audio channel mapping settings, check to see that your sequence has at least one 5.1 audio track, and also check Windows audio settings that your sound card is set to downmix multichannel audio to stereo audio (unless you have a 5.1 speaker set up).

     

    Jeff

     
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  • Jim Simon
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    6. Jim Simon,
    Jul 6, 2012 9:18 AM   in reply to TOP FOTO
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    I had a similar situation occur recently.  What fixed it for me was two things.  I had to reactivate Premiere Pro, and I had to clear the cache entirely.  The first allowed the codecs to 'reregister", and the second forced PP to create the cache files.

     
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  • TOP FOTO
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    7. TOP FOTO,
    Jul 6, 2012 9:47 AM   in reply to Jim Simon
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    Ok Jim. 
    I re-installed AVS4YOU since that was on the list of what I removed.   I'm going to clean the cache again (sigh).   Un-install it again (sigh).   But I'm doubtful since I've done all of that I rekkon a few times by now :/

     
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  • Jim Simon
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    8. Jim Simon,
    Jul 6, 2012 9:54 AM   in reply to TOP FOTO
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    Un-install it again (sigh).

     

    You don't necessarily have to uninstall.  (I didn't.)  Just deactivate, shut down PP, reboot, restart PP and reactivate.

     
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  • TOP FOTO
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    9. TOP FOTO,
    Jul 6, 2012 9:56 AM   in reply to Jeff Bellune
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    Hi Jeff.

    I messed about with Premiere's audio settings, including adding a 5.1 channel.  Normally when I add a clip it would ask to update the sequence to the new settings and it was all done automagically.  I stuck with this process because I was only using one type of file anyway.

    Remember the same files play just fine in other applications, windows media player, pinnacle studio 14 HD, Avid Studio (works now) and Sony's Vegas, so messing about with the Windows settings doesn't really add up.   Also previoulsy when it worked, when I dragged a clip into the Sequence area there would be a Video and Audio pair, now it'd just video.   Also in the Clip view window only the Video icon is enabled, the audio icon is disabled.  So premiere just doesn't ackowledge there is sound there.

     
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