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Exporting multiple audio channels from Premiere Pro CS6 in MXF OP1a

Jan 16, 2013 9:48 AM

I have a Premiere Pro project with multiple audio channels and I want to export them as individual channels in a MXF-file.

 

Method:

When I created a new sequence I choose "Multichannel" from the "Tracks" page. When I export the MXF OP1a, I choose 8 channels from the "Audio" page. I make sure that none of the channels are muted.

 

Result:

The rendered file contains 8 channels as I want it to, but only the first two channels contains audio (main left + right), the rest of the channels are empty. Channel 1 and 2 contains the audio from all channels, but I want the channels to be seperated in the same way as they are layered in Premiere.

 

Any ideas what I can do?

 

 

Thank you for your help!

 
Replies
  • Currently Being Moderated
    Jan 17, 2013 10:17 AM   in reply to ViktorSloth

    Go into the Mixer for the sequence and route the tracks as desired.

     

    Multichannel Mix.png

     
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  • Currently Being Moderated
    Jan 17, 2013 10:24 AM   in reply to ViktorSloth

    Heres more info that might help. Even though its a tutorial for 5.1 mix. It mentions things that might apply to you.

     

    https://vimeo.com/38501157#at=0

     
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    Jan 18, 2013 9:06 AM   in reply to ViktorSloth

    Glad to help.

     
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    Jan 18, 2013 9:24 AM   in reply to ViktorSloth

    This is almost certainly a VLC limitation.  (And probably applies to most players.)

     

    If you want to hear all of the audio, export out the normal stereo mix.  Multichannel is more for use in further post work or broadcast, not a finished file for general use.

     
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    Jan 18, 2013 9:26 AM   in reply to ViktorSloth

    That sounds like it might be a problem with VLC. You should post a note on their board.

     

    http://forum.videolan.org/index.php

     

    I know of a bug where VLC cant play back MXF OP1a AVC 23.976 files correctly. I let them know about it, they acknowledged the bug  and they were pretty noncommittal about fixing it.

     
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    Jan 18, 2013 9:30 AM   in reply to lasvideo

    I think that's for 30i files, no?  My 24p files play fine.

     
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    Jan 18, 2013 9:36 AM   in reply to Jim Simon

    The video plays fine but the audio plays fast then dies. Its not 24, it 23.976 files that are MXF OP1a AVC-100. They said that VLC doesnt interpret the audio sample rate correctly. And said others have let them know about this bug.

     
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    Jan 18, 2013 9:54 AM   in reply to ViktorSloth

    That sounds like a different issue then I am experiencing. Good luck!

     
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    Jan 18, 2013 9:56 AM   in reply to lasvideo

    My 23.976 files play fine, Tom.  It's my 29.97 files that have funky audio playback with VLC.

     
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    Jan 18, 2013 10:11 AM   in reply to Jim Simon

    My mistake Jim. Thanks for catching that. It is an issue with 29.97 files. At least I got it right when I reported it to VLC. 

     
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  • Currently Being Moderated
    Jan 18, 2013 10:17 AM   in reply to ViktorSloth

    The problem I am talk about is with MXF OP1a AVC-100 29.97 file. They do not play audio correctly.

     
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    Jan 18, 2013 10:28 AM   in reply to ViktorSloth

    Im sorry. I dont have any experience with PAL. I live in the US which is strictly NTSC.

     
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  • Currently Being Moderated
    Jan 18, 2013 10:49 AM   in reply to ViktorSloth

    This is almost certainly a VLC limitation.  (And probably applies to most players.)

     

    If you want to hear all of the audio, export out the normal stereo mix.  Multichannel is more for use in further post work or broadcast, not a finished file for general use.

     
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  • Currently Being Moderated
    Jan 19, 2013 10:41 AM   in reply to ViktorSloth

    Yes.  Like I said, a multichannel export is not for normal use.  Use stereo for a finished edit.

     
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  • Currently Being Moderated
    Jun 4, 2013 8:48 AM   in reply to ViktorSloth

    Hey Guys,

     

    I'm having problems exporting an 8 channel audio mxf for a broadcast client. The mix they want is as follows:

     

    Track 01: Full Programme Mix L

    Track 02: Full Programme Mix R

    Track 03: International Sound L

    Track 04: International Sound R

    Track 05: Music and Effects L

    Track 06: Music and Effects R

    Track 07: VO Mono

    Track 08: Interview Mono

     

    I have setup the sequence following this video on vimeo and am fairly confident I have the sequence settings correct. https://vimeo.com/38501157

     

    I also can export a multichannel mxf. But all my tracks are exported as mono and I am therefore not maintaining my L and R as set up in my sequence

     

    The problem is on exporting that since Tracks 01 and 02 are bounced down to 1 + 2 it means that my Track 01 (Panned L) is getting bounced down onto my Track 02 aswell and thus it does not remain seperate. Has anyone delivered a similar format for a broadcaster and come across this problem with Premiere Pro and know a solution?

     

    Any help would be much appreciated

     

    Thanks

     

    Eamonn

     
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    Jun 4, 2013 6:13 PM   in reply to Eamonn McManus

    Please type your posts in the Adobe forums by hand.  Copy/Paste leaves unwanted code throughout.

     

    style="background-color: #e7e7e7; font-family: adobe-clean, 'Helvetica Neue', Arial, sans-serif;

     
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  • Currently Being Moderated
    Nov 12, 2013 12:26 PM   in reply to ViktorSloth

    Hey Viktor, hope this reply isn't too late but I was having the same issue with exporting an MXF for broadcast. After troubleshooting I realized that it was a problem with sequence settings.

     

    When I created the sequence, although I selected multichannel and created 8 tracks of standard audio, the sequence was still set to 2 channel sound in the dropdown menu right of 'multichannel'.

    After creating a new sequence and dragging my edit in, everything exported fine.

     

    hope the fix was this simple for you.

     

    cheers,

    kevin

     
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