Latest post Fri, Mar 30 2012 2:50 PM by lumiere. 15 replies.
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  • Tue, Mar 13 2012 5:12 PM

    • lumiere
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    Bring back QT Ref without re-transcoding

    So I have a 3 hour sequence made of 10 min. clips I shot on a Canon 5D (limit to 15 min. per clip). The clips are all DNxHD 175 X now.

    I would like to make a self contained clip of the whole interview so I can search it with PhraseFind since it won't search sequences.

    When I export to QT reference and import it back, it looks like it re-transcodes the clips.

    Any way to keep the DNxHD intact and make it one clip?

    Is there another way to make 1 DNxHD clip of the 3 hour interview?

    Thanks!

     

  • Tue, Mar 13 2012 5:16 PM In reply to

    • BLKDOG
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    Re: Bring back QT Ref without re-transcoding

    And why aren't you just doing a video mixdown?

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  • Tue, Mar 13 2012 5:20 PM In reply to

    • lumiere
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    Re: Bring back QT Ref without re-transcoding

    Ha! I had just discovered that feature and am trying that now...

    I assume you just bring the AAF back in after the video mixdown?

    (sorry still very new with MC)

  • Tue, Mar 13 2012 5:44 PM In reply to

    • lumiere
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    Re: Bring back QT Ref without re-transcoding

    When I select all the clips in the sequence and choose Special/Video Mixdown it asks me what Resolution I want. Is there anyway to not re-transcode what is already DnxHD?

  • Tue, Mar 13 2012 5:56 PM In reply to

    • lumiere
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    Re: Bring back QT Ref without re-transcoding

    When I select the same codec as the source clips it doesn't look like it's re-transcoding (it did it way too fast for 3 hours of footage) but it also doesn't give me any indication that it just moved data... how to be sure?

  • Tue, Mar 13 2012 6:01 PM In reply to

    • lumiere
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    Re: Bring back QT Ref without re-transcoding

    Also, is there a way to do a Video/Audio Mixdown at the same time or should I do both and then use Autosync to join them?

    Thanks!

  • Tue, Mar 13 2012 6:07 PM In reply to

    • BLKDOG
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    Re: Bring back QT Ref without re-transcoding

    You can mix down both audio and video at the same time. When selecting the same codec, you do not get retranscoding, just rewrapping and new metadata.

    I'm not sure what you mean when yo uare asking about data transfer.

    Project Manager, Avid Professional Services - Americas [view my complete system specs]

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  • Tue, Mar 13 2012 6:35 PM In reply to

    • lumiere
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    Re: Bring back QT Ref without re-transcoding

    How do you Mixdown Video and Audio at the same time? Options in the menu are separate. Also, how to make sure it keeps the video and audio embedded in the result so I don't have to do an autosync.

     

    Good to know about the non-transcode when selecting the same codec. Is this an AVID rule? Whenever you transcode something to the same codec it doesn't transcode it?

  • Tue, Mar 13 2012 6:41 PM In reply to

    • BLKDOG
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    Re: Bring back QT Ref without re-transcoding

    Sorry, I mispoke. I was thinking about transcode. Mixdown is only one at a time.

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  • Tue, Mar 13 2012 9:24 PM In reply to

    • mhamilton
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    Re: Bring back QT Ref without re-transcoding

    BLKDOG:

    You can mix down both audio and video at the same time

    Hi there BLKDOG,

    I am now religiously mixing down both video and audio before exporting... but I can't see how to mixdown both at the same time.

    Would you mind elaborating?

    Thanks very much,

    Malcolm

    Mac Pro 6-Core 3.3GHz • OSX 10.9.1 • Media Composer v7.0.3 [view my complete system specs]
  • Tue, Mar 13 2012 9:29 PM In reply to

    • BLKDOG
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    Re: Bring back QT Ref without re-transcoding

    Malcolm...see my last post above.

    Project Manager, Avid Professional Services - Americas [view my complete system specs]

    In agreement, Unity. In Disagreement, Discussion. In all things, Charity.


  • Tue, Mar 13 2012 9:46 PM In reply to

    • mhamilton
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    Re: Bring back QT Ref without re-transcoding

    Sorry.  Don't know why I missed that.

    O.K., one at a time.

    Regards, Malcolm

    Mac Pro 6-Core 3.3GHz • OSX 10.9.1 • Media Composer v7.0.3 [view my complete system specs]
  • Wed, Mar 14 2012 3:07 PM In reply to

    • lumiere
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    Re: Bring back QT Ref without re-transcoding

    So I did Audio & video Mixdowns of the sequences and then used AutoSync to bring them together.

    The result is a subclip with perfectly synced video and audio - but... I'm experiencing some issues.

    First, PhraseFind refuses to index these subclips. I even deleted the whole PhoneticData folder and let PF reindex the whole project overnight - still it ignores these new .mxfs.

    I must point out that the new mxfs are in a '2' folder unlike the rest in '1' folder in Avid MediaFiles/MXF.

    Moving the .mxfs to the '1' folder, restarting MC didn't solve the issue.

    I also brought a new clip in (AMA -> transcode to DNxHD) to test if PF was still indexing new clips and it did fine.

    Finally, another weird thing is that MC won't let me navigate the MixDown/AutoSync created subclip by entering a timecode in them. It just beeps. The timecode seems fine in the timecode window. I must point out that if I bring a regular master clip in the source and try to navigate with timecode, it works fine.

    Any ideas?

    Thanks!

  • Wed, Mar 14 2012 3:11 PM In reply to

    • lumiere
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    Re: Bring back QT Ref without re-transcoding

    I also tried to do a new Audio MixDown from the final subclip to see if PhraseFind would index it and when I set an IN & OUT point in the clip and choose to Audio MixDown, I get the error: "Exception: Mark in or Mark Out incorrect.

  • Wed, Mar 14 2012 6:51 PM In reply to

    • lumiere
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    Re: Bring back QT Ref without re-transcoding

    I guess the video Mixdown is fine but as far as the audio, I think I'm looking for something different than the Audio Mixdown... meaning that the Mixdown only gives me the ability to produce a mono or a stereo track.

    Often, I'll have 3 or maybe even 4 tracks of audio (multiple mics placed around the scene while shooting). What I'm looking for is more of exporting a 'self contain' file preserving all the tracks. Something I can bring back in and AutoSync with the Mixdown video.

    Any suggestions?

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