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bmxtranswrap audio left right left right

2017-04-04
2017-04-04
  • jamie_parry

    jamie_parry - 2017-04-04

    hello, I'm trying to replicate files made by avid/content agent (they seem to do the same thing)
    when i open the as11 mxf files in quicktime (i have a plugin that works) i get the 4 channels of audio as being Left,Right,Left,Right which makes sense to me.
    When I just rewrap them through bmxtranwrap the audio is now described as 'mono' for each track
    is there any way to get these labels to be the same...do I even need to?
    I'm just aiming for consistency with my company's accepted everyday delivery
    cheers!
    jamie

     
  • Philip de Nier

    Philip de Nier - 2017-04-05

    If the file is a AS-11 UK DPP HD file then I would guess the Left,Right,Left,Right information is derived from it being an AS-11 file, the audio tracks are numbered and the AS-11 DPP metadata item AudioTrackLayout is set to something that indicates stereo pairs. A simple rewrap won't preserve the AS-11 metadata and will write a vanilla OP-1A rather than AS-11. You need to use options such as "-t as11op1a", "--dm-file..." etc. to produce an AS-11 file. Use "mxf2raw --as11 <file>" to see the AS-11 metadata.</file>

    Philip

     
  • jamie_parry

    jamie_parry - 2017-04-06

    aahhh got it
    i used
    bmxtranswrap -p -t as11op1a --pass-dm -o /path/to/output_audio_only.mxf --disable-video /path/to/input_as11.mxf
    and that worked fine.
    thanks very much!
    j

     
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