Latest post Mon, May 25 2015 10:42 PM by hbrock. 3 replies.
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  • Sat, May 23 2015 4:10 AM

    • Lucas Maia
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    • Joined on Sat, May 23 2015
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    Playback issues

    Hi Folks

    In our facility, we use a NAS server as our shared storage. It has a very good throughput and an excellent response.

    We were facing some unexplainable playback issues and today i've figured out that the dropped frames happened 2 seconds before a cut with a polyphonic audio, sometimes with an audio dissolve the problem gets more evident. Do someone has the same problem?

     

    I have already tried almost all console commands related to audio.

     

    We are using Media Composer 8.3.1 on OSX 10.10.2.

  • Sat, May 23 2015 4:59 AM In reply to

    • hbrock
    • Top 25 Contributor
    • Joined on Thu, Oct 13 2005
    • Santa Monica, CA
    • Posts 5,520
    • Points 64,055
    • Moderator: Avid Xpress Pro Mac
      Moderator: MCA Mac
      Moderator: Media Composer Getting Started

    Re: Playback issues

    Wild guess: block sizes on your server.  Good performance for video files (large) can impact audio files (small) in a unpleasant manner as you could be putting a very small file into a very large space and then have to wait until the next block to get the next small file.  In other words, a little bit of something and a whole lotta nothing.

    If you want to try a test, consolidate some audio files to a local drive and see if the problem goes away.

    MacPro, MacBook Pro and a Cube (masquerading as a kleenex dispenser). [view my complete system specs]

    Must think of something clever to go here...

  • Mon, May 25 2015 1:40 PM In reply to

    • Lucas Maia
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    • Joined on Sat, May 23 2015
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    • Points 45

    Re: Playback issues

    Thank you so much hbrock!

    Excellent shoot.

    Consolidating the audio files to a local drive made it works.

    We are going to do some changes on the server side and i'll keep you in the loop.

    Cheers!

  • Mon, May 25 2015 10:42 PM In reply to

    • hbrock
    • Top 25 Contributor
    • Joined on Thu, Oct 13 2005
    • Santa Monica, CA
    • Posts 5,520
    • Points 64,055
    • Moderator: Avid Xpress Pro Mac
      Moderator: MCA Mac
      Moderator: Media Composer Getting Started

    Re: Playback issues

    You might want to consider seperate volumes on the server with smaller block sizes for the audio media.

    MacPro, MacBook Pro and a Cube (masquerading as a kleenex dispenser). [view my complete system specs]

    Must think of something clever to go here...

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