Latest post Sun, Jan 10 2016 10:04 PM by Lukas Boeck. 6 replies.
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  • Wed, Jan 6 2016 12:34 PM

    Dead End - Do not understand specs from TV Broadcaster

    Hello Everyone, I've try to search the answer everywhere but can't find it, here's the problem :

    My TV Broadcaster I works with on the last 3 years, starting to broadcast in Digital and ask me to kind of file

    FOR SD Broadcast :

    Type of File : .mov

    SD 16/9 - 1024x576

    Codec : mpeg30 MXF

     

    FOR HD Broadcast :

    Type of file : .MXF OP1a

    HD 16/9 - 1920x1080i

    Codec : XDCAMHD 50

     

    Whatever I've tryied in the last 3 months, it's never the good format, and it's always refused :

    For SD, because I can't find MPEG 30, I've proposed IMX30 (in .MXF not .MOV with MXF OP1a Option) but the audio has 4 audio track, not 2 as ask by tv broadcaster -> Refused

    For HD, the file is created with MXF OP1a Option, but for unknown reason, is not working with them -> Refused

     

    they keep telling me, the other producer have no problem, SO my question is What I'm missing here?! do you have any trick or any idea to find the exact codec asked for SD and for HD ?!

     

    All of our PC are on AVID Media Composer 6.5.2 and we have also one mac with 6.5.2 just in case

     

    Thanks in advance i'm really stuck here, any help is welcome

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  • Wed, Jan 6 2016 2:52 PM In reply to

    • jef
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    Re: Dead End - Do not understand specs from TV Broadcaster

    While I can not answer your questions directly, I would say that you could ask for two things:

    1.  More detailed techinical specs.  The SD request is problematic in that it say Type of File: .mov and the it says Codec: mpeg30 MXF.  The issue here is that MXF and .mov are really the same in that they are containers, not codecs.  Now this could be a typo on their part, but you should get that cleared up - which is it?

    2.  Ask for sample files that meet their specs.  Then download Mediainfo.     https://mediaarea.net/en/MediaInfo    Use this tool to see exactly what they want.  Then make tests from your tools till you match it.

    You may not be able to directly create the SD file from Avid.  You may need a third party tool such as Squeeze or Adobe Media Encoder.

    Good luck,

    Jef

     

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  • Wed, Jan 6 2016 4:15 PM In reply to

    Re: Dead End - Do not understand specs from TV Broadcaster

    You don't supply a digital file for TV for SD at 1024x576 thats for a square pixel web based playback.

    The 601 spec (the Default Digital TV Spec) it's 720x576 flagged as anamorphic.

     

    And yes is it MXF of MOV? they are different.

    ACI Moderator. I'm not employed by Avid or work for them. I just do this in my spare time. Normally using the current Media Composer version on My... [view my complete system specs]

     

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  • Wed, Jan 6 2016 4:35 PM In reply to

    Re: Dead End - Do not understand specs from TV Broadcaster

    Thanks for your Answer Jef, I've already figure it out that could be a typo for SD, but they still say it's not,

     

    Today, we succeed to create an MPEG30 .mov (create a Videomixdown in MPEG30, then export a same as source of the timeline, with that solution I've the good container (.Mov), and I think the good codec (MPEG30), but not the good pixels size) Do you know a solution for that?

    Next week I will give them that test to check just in case.

     

    By the way, my problem with that TV broadcaster, they don't have a permanent technician to talk with, so I don't know who write the technical specs, and no one can told me more detailled stuff. And don't ask me why, they don't want to share sample (or don't know how to) and to complete that, of course they're losing patience (yeah, French people are really weird sometime) :-D

  • Wed, Jan 6 2016 6:51 PM In reply to

    Re: Dead End - Do not understand specs from TV Broadcaster

    See my post. You can't do an MPEG30 at 1024 it's 720 anamorphic.

    ACI Moderator. I'm not employed by Avid or work for them. I just do this in my spare time. Normally using the current Media Composer version on My... [view my complete system specs]

     

    Broadcast & Post Production Consultant / Trainer  VET

     

    T 07581 201248 | E pat@vet.co.uk | W www.vet.co.uk |


    Media Composer V8.2 Review Background Render

    -

    Follow me on Twitter Pat_H_VET

  • Thu, Jan 7 2016 2:09 PM In reply to

    Re: Dead End - Do not understand specs from TV Broadcaster

    Yes Pat, thanks, I've read it,

    I've send to the channel, your answer and Jef's one too, to support what i've already tell them, I'm still waiting an answer from them, I've work with multiple channel, and it's the first time someone ask a different kind of file, I've try to send them the regular one, but it's seems to not work with their system.

     

    I keep you in touch

  • Sun, Jan 10 2016 10:04 PM In reply to

    • Lukas Boeck
    • Top 500 Contributor
    • Joined on Fri, Jul 31 2015
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    Re: Dead End - Do not understand specs from TV Broadcaster

    I'd stick with the HD MXF op1a Option.

     

    it is the standard broadcast format in europe, avid excells at conforming to these specs (i'm, looking at you, adobe)

    did you apply a safe color limiter? i like to limit rgb values to 16 and 235.

    is your timeline set to interlaced? broadcasters want interlaced, even if material inside is progressive.

    it's dubious that they don't mention audio levels. i'd do what everybody does: ebu r128

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