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export stereo audio for Pro Tools mix session

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Lisha Rigney
export stereo audio for Pro Tools mix session
on Oct 1, 2018 at 7:07:13 pm

Hello all,

The audio in my timeline is stereo but the AAF file I send to the audio mixer is dual mono for some of the clips. What settings do I need to change so all the files in the AAF are stereo? I export an XML from FCPX then use X2Pro Audio Converter to make an AAF file for Pro Tools.

Message from the Pro Tools mixer, "...the theme music is ok but 100% of all the clip audio is dual mono."

Thanks so much,
Lisha


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Lisha Rigney
Re: export stereo audio for Pro Tools mix session
on Oct 1, 2018 at 7:08:58 pm



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Jeremy Garchow
Re: export stereo audio for Pro Tools mix session
on Oct 2, 2018 at 5:17:25 pm

What's wrong with dual mono?

is that screen grab from the clip in the timeline or event?


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Lisha Rigney
Re: export stereo audio for Pro Tools mix session
on Oct 2, 2018 at 9:31:04 pm

The Pro Tools audio mixer said the dual mono audio does not provide the best sound quality and that he has to do a lot of extra work on his end to turn it into stereo.


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Jeremy Garchow
Re: export stereo audio for Pro Tools mix session
on Oct 2, 2018 at 9:39:41 pm

But is it a stereo mic, or two discrete channels?

Is this on camera audio or separate?

Did you trim the audio in X2Pro or are you referencing existing media?


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Lisha Rigney
Re: export stereo audio for Pro Tools mix session
on Oct 2, 2018 at 9:31:52 pm

The screen grab is from the clip in the timeline.


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Scott Witthaus
Re: export stereo audio for Pro Tools mix session
on Oct 3, 2018 at 3:52:55 pm

[Lisha Rigney] ""...the theme music is ok but 100% of all the clip audio is dual mono.""

As him/her why dual mono is a problem for dialogue and why he/she wants to bill extra hours to turn it into stereo. Also as him/her why the quality will suffer. I am interested in his responses.

Scott Witthaus
Visual Storyteller - FCPX, Premiere
https://vimeo.com/channels/1322525
Managing Partner, Low Country Creative LLC
Professor, VCU Brandcenter


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Doug Metz
Re: export stereo audio for Pro Tools mix session
on Oct 8, 2018 at 6:05:28 pm

Each dual-mono channel would be center panned in a multi-channel mix. If the clip audio is actually stereo, but flagged as dual mono, it can cause phasing issues and frequency cancellation, which sounds bad. You'd run into this with a stereo smartphone recording or camcorder with a built-in stereo mic, or similar scenario. If it actually is dual mono (each channel a different mic, or one channel duplicated), then it shouldn't be any kind of real problem outside a simple level adjustment. Not one you'd hear, anyway.

The screen shot shows Stereo though, so it's a bit puzzling that the output is showing otherwise.

Doug Metz

Anode


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