Adobe PREMIERE 5, Руководство пользователя, Страница: 380 / 404

APPENDIX D 372
Troubleshooting
•
With the Timeline window active, choose Edit > Undo as many times as necessary (limited
by the number of Undo steps available) to return to a state where audio and video are in sync.
See “Correcting mistakes” on page 73.
•
If you recently added clips to the Timeline, certain combinations of source Take icons, target
Timeline tracks, Timeline window options, and editing options can cause some tracks to shift
and not others when you add a clip. This might, for example, cause an audio clip to shift out of
sync with its video. See “Specifying source and target tracks” on page 145.
•
Choose Timeline Window Options from the Timeline window menu, and check the setting
for On Insert. Select Shift Material Only in Target Tracks, click OK, and try your edit again.
If Shift Material in All Unlocked Tracks is selected, a video track inserted without audio may
cause the existing clips on the video track to ripple out of sync with existing audio tracks,
or vice versa.
NTSC video goes out of sync with audio during playback or export
In Project Settings, make sure the timebase is set to 29.97 and that the frame rate is set to 30 fps
Drop-Frame Timecode. Using a timebase of 30 for NTSC video will cause audio to go out of
sync with the video.
Can’t extend clip duration with ripple edit, rolling edit, slip, or slide tools
The ripple edit, rolling edit, slip, and slide tools can extend the duration of a clip only if
it has been trimmed with either In or Out points so that extra source frames exist either
before the program In point or after the program Out point. If this is not true for the clip
you are trying to edit, there are no frames available for Premiere to extend the clip when you
use these tools.
c00.book for PS Page 372 Tuesday, March 31, 1998 1:28 PM