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Chapter 4. Capturing and Importing Media > Creating Subclips with DV Scene Extr...

Creating Subclips with DV Scene Extraction

DV scene extraction is an automated method of breaking your footage into individual subclips. Xpress Pro accomplishes this task by using invisible time-of-day (TOD) information that usually exists on DV tapes. The TOD information tells Xpress Pro when you began and stopped recording with your camera by pressing the record button.

You can enable DV scene extraction either before or after you capture a clip. All you need to do is capture a long master clip from your DV source tape. Then when you perform the DV scene extraction, Xpress Pro creates subclips from the master clip, adds locators to the master clip, or both.

The advantage of capturing with this method is that it saves you from having to name and add comments to shots during capture. If you have your deck for only a limited amount of time, it might be a good idea to just get the media on your computer and go through it later.

The drawback to capturing with this method is that you need a lot of hard drive space to capture a long master clip.

Further limitations are as follows:

  • You must capture video. This method does not work with audio-only footage.

  • You cannot apply scene extraction to DVCPro-format tapes.

To preconfigure DV scene extraction before capturing a clip:

1.
On the Settings tab of the Project window, double-click your active (check-marked) Capture settings.

2.
On the DV Options tab of the Capture Settings dialog box, select DV Scene Extraction (Figure 4.34).

Figure 4.34. To enable DV scene extraction, open your Record Settings dialog box and click the DV Options tab. Select DV Scene Extraction; then select Add Locators, Create Subclips, or Both.


3.
Select one of the following options:

  • Add Locators: Xpress Pro will place locators at the TOD information breaks on your captured master clip.

  • Create Subclips: Xpress Pro will break your captured master clip into subclips that begin at the TOD information breaks on your captured clip (Figure 4.35).

    Figure 4.35. If you configure DV scene extraction to create subclips, then Xpress Pro breaks a master clip into multiple subclips, using time-of-day Information.


  • Both: Xpress Pro will create locators at TOD breaks on your captured master clip and create subclips that begin at the TOD breaks (Figure 4.36).

    Figure 4.36. You can configure DV scene extraction to both create subclips from a master clip and add locators on the master clip to mark time-of-day Information.


4.
Choose a bin to which you want Xpress Pro to send the extracted clips and click OK.

Now after you capture a new clip, Xpress Pro will add locators to the clip, break it into subclips, or both, based on your settings.

✓ Tip

  • DV scene extraction creates subclips that have the same name as the original clip plus the extension .sub.01, .sub.02, and so on. You can rename them.


To apply DV scene extraction to an existing clip:

1.
Open the bin that contains the clip that you want to affect and select the clip.

2.
Choose Bin > Scene Extraction.

3.
In the DV Scene Extraction dialog box that appears, select one of the following:

  • Add Locators: Xpress Pro places locators at the TOD information breaks.

  • Create Subclips: Xpress Pro creates subclips that begin at the TOD information breaks.

  • Both: Xpress Pro places locators at TOD breaks and also creates subclips that begin at the TOD breaks.

4.
In the DV Scene Extraction dialog box, choose the bin where you want to place the subclips (if you choose to create subclips; see Figure 4.37).

Figure 4.37. When applying DV scene extraction to an existing master clip, choose a bin for the new subclips in the DV Scene Extraction dialog box.


5.
Click OK.

Xpress Pro creates subclips that have the same name as the original clip plus the extension .sub.01, .sub.02, and so on; or it creates a master clip that has locator marks at TOD information breaks; or it does both.

✓ Tips

  • During the extraction process, Xpress Pro skips non-DV or audio-only clips.

  • During DV scene extraction, you can cancel the procedure by pressing Ctrl+period (Windows) or Command+period (Mac).


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