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Import quicktime files into AVID

Larry Garb

Import quicktime files into AVID
January 18, 2011 10:13AM

Registered: 16 years ago
Posts: 35

When we are importing our HDProres files into our AVID Symphony 5 the black levels are being crushed. Any ideas on why?
thanks
Larry

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strypes

Re: Import quicktime files into AVID
January 18, 2011 11:01AM

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Registered: 16 years ago
Posts: 8,836

Are they interped as rgb or 709/601 files?

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Larry Garb

Re: Import quicktime files into AVID
January 18, 2011 11:27AM

Registered: 16 years ago
Posts: 35

As 709/601.

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Shane Ross

Re: Import quicktime files into AVID
January 18, 2011 11:43AM

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Registered: 17 years ago
Posts: 5,764

Accessing via AMA, or transcoding to DNxHD? And you are looking at this on a broadcast monitor, I assume. Being a Symphony...

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Larry Garb

Re: Import quicktime files into AVID
January 18, 2011 11:51AM

Registered: 16 years ago
Posts: 35

We are transcoding to DNX and looking at it on a scope. The Codec is to complex for the AMA tool to play back in real time.

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grafixjoe

Re: Import quicktime files into AVID
January 19, 2011 08:40AM

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Registered: 17 years ago
Posts: 6,730

Is is Mac to PC? There is a notorious gamma shift between the 2. I would transcode everything FIRST to DNxHD then import. Did you try exporting a single clip from Quicktime to DNxHD? Does the gamma shift on FCP export or after Avid import?

BTW...it's refreshing to see that some people still use SCOPES!!

When life gives you dilemmas...make dilemmanade.

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strypes

Re: Import quicktime files into AVID
January 19, 2011 10:45AM

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Registered: 16 years ago
Posts: 8,836

Try interping it as rgb. I had a similar issue a few days ago moving from avid to FCP where the clip was brighter. Both on the scopes and on the mon (the letterbox was on the 10% line). We toggled the export settings and we were fine.

www.strypesinpost.com

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Larry Garb

Re: Import quicktime files into AVID
January 19, 2011 11:44AM

Registered: 16 years ago
Posts: 35

We are going from mac to PC? The shift happens on the import to the AVID. The export levels are good.

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strypes

Re: Import quicktime files into AVID
January 19, 2011 12:27PM

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Registered: 16 years ago
Posts: 8,836

Try interpreting it as rgb. That tells avid where to map the black/white points. Otherwise it could be the QuickTime gamma thing that Joey mentioned.

www.strypesinpost.com

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Larry Garb

Re: Import quicktime files into AVID
January 19, 2011 04:44PM

Registered: 16 years ago
Posts: 35

I think we figured it out.
When importing the files into the AVID you must have RGB selected.
When importing the files back into the final cut you must under user preferences and the editing tab select the gamma level 2.22 on importstills/rgb video gamma.
On export from AVID we used the compressed codec "none"
Hope this helps others.

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strypes

Re: Import quicktime files into AVID
January 21, 2011 04:51AM

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Registered: 16 years ago
Posts: 8,836

Yea, RGB will map the black point of the incoming clip to 0, instead of -10.

You can try exporting to ProRes if you have FCP installed on that machine.

www.strypesinpost.com

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