Preparing to Export Audio Tracks as Audio Files

Before you export your sequence’s audio tracks to audio files, you should make a duplicate of your sequence to use for the export process. This leaves your original edited sequence untouched.

Stage 1: Making a Duplicate of Your Sequence

Because you may make significant alterations to your sequence, it’s better to duplicate the sequence and work on the copy. If you make any drastic errors, you can always return to your original sequence.

Stage 2: Inserting Sync Beeps for Each Audio Track

Insert a one-frame sync beep at the beginning and end of each audio track in your sequence. These beeps help audio editors synchronize picture to exported audio tracks, much as a slate does during initial picture and sound editing. The beep before a movie begins is also known as a two-pop because the beep occurs just 2 seconds before the first frame of the movie appears. You may notice that when you see a movie countdown, the last beep coincides with the number 2 in the 10-second countdown.

To create a two-pop (or sync beep)
  1. Double-click a sequence in the Browser to open it in the Timeline.

    If there is no space at the beginning of your sequence, you need to make room for your two-pop.

  2. In the Timeline, choose Edit > Select All (or press Command-A), then type “+200.”

    All of the clip items in your sequence move forward by 2 seconds, making room for the two-pop.

  3. Choose a Bars and Tone generator from the Generator pop-up menu in the Viewer.

    Figure. Bars and Tone generators in the Generator pop-up menu in the Viewer.
  4. Press I to mark an In point, press the Right Arrow key on the keyboard to move forward one frame, then press O to mark an Out point.

    Figure. In and Out points for a single-frame clip in the Viewer.
  5. Drag this clip from the Viewer to the first frame of your sequence in the Timeline.

  6. Option-click the video portion of the one-frame clip to select that part only.

    Figure. Timeline window showing the video portion of a one-frame clip selected.
  7. Press Delete to delete the video portion of this clip.

    Figure. Timeline window showing the audio portion of the one-frame clip after the video has been deleted.

    Note: Instead of deleting the video portion of the two-pop, you can also replace it with a more appropriate video generator, such as a circle shape generator.

  8. Cut the stereo beep and paste it 2 seconds beyond the beginning and end of each audio track you will export.

    Figure. Timeline window showing a stereo beep clip pasted 2 seconds before the beginning of an audio track.

Stage 3: Arranging Audio Clips So They Don’t Overlap

When you export audio files, there is no automatic way to include “handles,” or extra audio at the beginning and end of each audio clip. If you want extra audio before and after the In and Out points of each audio clip, you need to manually change the In and Out points of each audio clip in your sequence.

Note: When you add handles, be careful not to move the placement of clips in your sequence. In some cases, you may need to move your audio clips into two adjacent tracks to create an overlapping checkerboard pattern of audio clips that include handles.

Stage 4: Removing Audio Filters and Deleting Level or Pan Keyframes

To remove any dynamic mixing, remove all audio filters from your audio clips, flatten the audio level overlays to 0 decibels (dB), and remove any stereo panning you may have introduced.

To remove all audio filters and keyframes in your sequence
  1. Select every audio clip in your sequence by clicking in the Timeline and pressing Command-A.

    All video clips are selected too, but you don’t need to worry about your video clips because you are only using this sequence to export audio.

  2. Control-click one of the selected clips in the Timeline, then choose Remove Attributes from the shortcut menu.

  3. In the Remove Attributes dialog, select Levels, Pan, and Filters, then click OK.