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Frequently Asked Questions - How it works

FAQs - How it works

X2Pro will create a single AAF file that contains your project information as well as either all of the audio used by the project or references to the audio. Audio clips can be copied whole into the AAF file or trimmed with handles, giving maximum flexibility (the trimming/handles is feature is not available in X2ProLE).

X2Pro will split any multi-channel audio files into separate channels in the AAF file, for example, when a stereo music track is used on your Final Cut project, the left and right channels will appear on two separate tracks in Pro Tools.

Final Cut Pro X uses the magnetic timeline in order to layout a project, while within AAF a composition is constructed from a number of fixed tracks. In AAF, each track is a single (mono) channel of audio. The first thing that X2Pro does is to group and sort everything by its role within the Final Cut Pro X project. This results in tracks in the AAF file also being grouped by role, typically dialogue first, then effects and music. There are options for the user to be able to create their own role order, ignore some roles entirely, and to ignore subroles when laying out the tracks so that all the subroles of one role will be packed onto as few tracks as possible (this feature is not available in X2ProLE).

Within each role, X2Pro analyses the Final Cut project and places the clips on tracks in a logical fashion, usually creating several tracks in the AAF file from each role. Final Cut Pro project components will be rearranged during the conversion process:

  • Multi-channel clips will be split into separate mono components, each placed on a separate track;
  • Clips that overlap (for example J/L Cuts) will be put on between different tracks;
  • Composite clips will be separated into their component clips;
  • Multicam clips will be reduced to the selected angle;

In these cases, where necessary, extra tracks are created in the AAF file, so the AAF file will often contain many more tracks than the Final Cut Pro X project appeared to have. Each track will contain clips from just one role and will be named accordingly, for example "A24 (effects)".  

X2Pro supports volume adjustments (including key-framed volume adjustments), transitions and fade handles. These are converted as follows in Pro Tools:

  • Whole clip volume adjustments will be converted to Clip Gain within Pro Tools;
  • Key-framed volume adjustments will be converted to key-frames on the Volume Adjustment Lane within Pro Tools;
  • All transitions are converted to linear cross-fades;
  • All fade handles are converted to key-framed volume adjustments as a linear fade.  
Markers and To Do notes are translated into Markers in Avid Pro Tools. Markers, To Do, and completed To Do, are colour coded differently, this enables the Pro Tools user to select which are imported. Markers in FCP X are attached to clips, whereas in Pro Tools they are attached to tracks. This can mean that markers are lost in translation if they are attached to a video clip for which there is no audio at that point in time (such as in “L” and “J” cuts). If there is another piece of audio at this point in time, the marker may be attached to that clip, but would then end up on a different track in Pro Tools. 

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