Latest post Wed, Mar 16 2022 10:18 PM by Job ter Burg. 5 replies.
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  • Tue, Mar 15 2022 3:44 PM

    • Adrian Redmond
    • Top 500 Contributor
    • Joined on Wed, May 28 2014
    • Channel 6 Television Denmark
    • Posts 303
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    Mastering workflows

    I'd be interested to hear how other MC editors tackle the mastering and archiving of their productions.

    When my production is complete andf the timeline is fully rendered, I usually do the following -

    1. Digital cut to HDCAM master for archiving

    2. Mixdown of video and audio tracks to mxf files for archiving

    3. Export to file - typically H264 .MOV uncompressed (from which other compressed formats may be made as required).

    As I am still running MC 8.5.3 (with Symphony) I cannot master directly to H.265/HEVC - I am currently testing a conversion route via Shutter Encoder but haven't got this to work quickly enough yet.

    Does anyone know if Shutter Encoder can work with a pair of audio/video mxf mixdown files from the timeline - and assemble the two files together for conversion to for example H.265?

    I have found one reliable route to achieving a high quality compressed MP4 version - load the uncompressed mov file up to YouTube than when processed, download the file as MP4 - for a 30 something GB MOV files this results in a 290MB MP4 file with no noticeable compression artefacts. So far this is the best way I have found to achieve a high quality smallish MP4 file.

    I would like to hear how others approach their mastering, archiving and conversions :)

    Avid Media Composer v. 8.5.3. with Symphony Option on HP Z820 Dual Intel E5-4650L 8-core HT 2.6GHz CPU with 256GB RAM (192GB available to OS), NVidia Quadro... [view my complete system specs]

    Adrian Redmond
    Owner / Producer / Editor
    Channel 6 Television Denmark

  • Tue, Mar 15 2022 8:32 PM In reply to

    Re: Mastering workflows

    Interesting question. 

    For short form projects with raw files of perhaps 300GB I keep the camera originals for about half a year. I delete the MXF media files, If I ever need to edit something again in this project I bring my media in either by relinking or batch re-import. 

    For longer-form projects (depending on the project) I export an uncompressed, mezzanine level DNxHR HQ, and a H.264 MP4 at 12mbps (HD) then delete the camera originals. 

    Since MC can't queue exports that will be encoded differently, I export an uncompressed or mezzanine level, then transcode in Media encoder or shutter encoder to my other flavours. 

    Not sure if shutter encoder can bring together a separate audio file and a video file, and then combine them into one video file. I've never tried that. 

    Editing Movie Magic.

    My Equipment & System Specs

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  • Wed, Mar 16 2022 10:11 AM In reply to

    Re: Mastering workflows

    Is that HDCAM or HDCAM SR?

    HDCAM is sub sampled to 3:1:1 so suitable for playback from but not as a master.

    I don't think shutter encoder can use 2 different sources.

    H265 is very processor intensive (around 3 times that of H264) so I suspect your crate will be the limiting factor.

     

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  • Wed, Mar 16 2022 7:35 PM In reply to

    Re: Mastering workflows

    Pat Horridge:
    I don't think shutter encoder can use 2 different sources.
    I thought it did. Via Merge and/or Replace Audio. But have never done that in SE, I must admit.

    Media Composer Symphony | PT Ultimate | Win10 HPZ | OSX MBP | ISIS5000 [view my complete system specs]
  • Wed, Mar 16 2022 10:06 PM In reply to

    Re: Mastering workflows

    Job ter Burg:

    Pat Horridge:
    I don't think shutter encoder can use 2 different sources.
    I thought it did. Via Merge and/or Replace Audio. But have never done that in SE, I must admit.

    The merge / replace audio is under the without conversion section. So you can replace the audio but not transcode that the same time.

    But you coul do it in 2 passes. Replace the audio and not transcode and then transcode the resulting file.

    HP Z840 3.1GHZ 20cores 128GB RAM M4000 GPU 1TB NVMe drive HP Z book 17 G2 2.7GHZ Quad core 32GB RAM Nvidia K3100M 1TB SSD drive ACI Moderator. I'm... [view my complete system specs]

     

    Broadcast & Post Production Consultant / Trainer  Avid Certified Instructor VET (Retired Early 2022)

     

    Still offering training and support for: QC/QAR Training - Understanding Digital Media - Advanced Files * Compression - Avid Ingest - PSE fixing courses and more.

    Mainly delivered remotely via zoom but onsite possible.

     

    T 07581 201248 | E [email protected]

     

  • Wed, Mar 16 2022 10:18 PM In reply to

    Re: Mastering workflows

    Ah, of course. Got it. Thanks!

    Media Composer Symphony | PT Ultimate | Win10 HPZ | OSX MBP | ISIS5000 [view my complete system specs]
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