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Adding a video or audio track

This feature is part of the licensable AppCenter Pro option.

You can view, edit, add or remove video and audio tracks in an clip. The tracks should be of the same format. (For example, if you have an NTSC clip, do not add a PAL track to it.) You can have up to four video tracks or 32 audio tracks in one clip. Added tracks are aligned to the start of the clip.

Clips may contain tracks of different lengths. The length of the overall clip is limited to the length of the original track. For example, if you have a clip that is thirty seconds long and you add a two-minute audio track, AppCenter adds only the first thirty seconds of audio from the added track.

Note: If an additional track is longer than the original track, any material beyond the length of the original track is not played as shown in the illustration below.

If an additional track is shorter than the original track, video plays black, ancillary data tracks are blank, and audio is silent as illustrated below.

To add a video or audio track, follow these steps:

  1. In the Clips Properties dialog box, select the Tracks tab.
  2. Click the Add Track button. The Select Asset dialog box displays.
  3. Browse to the asset that has the tracks you want to add. Click OK. The Select Tracks dialog box displays.
  4. You can select a track by checking the box next to the track or, within the audio or video sections, by highlighting the track you want to add, right-clicking with the mouse, and then checking the box. When you have selected the tracks, click OK. The Clip Properties dialog box shows yellow sunbursts next to the track icons of the newly added tracks.
  5. To accept the changes, click OK.

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