Time displays

From the Options menu, choose Time Display, and choose Passive Update from the submenu. A check mark appears next to the command to indicate that this option is turned on.

Video displays

From the Options menu, choose Video, and choose Passive Update from the submenu. A check mark appears next to the command to indicate that this option is turned on.

Synchronizing audio and video

If your video has been opened from a slow device, such as a CD-ROM, DVD-ROM, or network drive, Sound Forge software may have trouble accurately playing back the audio and video in sync. You should always copy your video files to a fast hard drive. Listed below are a few tips that can help when trying to synchronize the audio and video:

•After assembling or editing the audio you wish to use with your video, place markers during video playback to correspond to any major synchronization points. You can locate a particular frame by dragging the cursor along the audio if the Video Preview window is open (from the View menu, choose Video Preview) or the Animate Video Strip option is enabled (from the Options menu, choose Video>Animate Video Strip. After primary locations have been identified, drag your audio to these markers to mix and paste audio.

•Features such as Insert Silence, Delete/Clear, and Time Stretch are commonly used to correct synchronization. Another useful trick is to create a region representing the offset between a video frame and audio event. Then you can enable Lock Loop/Region Length and drag the offset region to a preceding silent section. Use the region as a template for adjusting the audio stream length—either copying and pasting to insert time or deleting to remove time.

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