MediaCentral | UX User’s Guide : Using the Sequence Pane : Editing a Sequence : Creating an Audio-Only NAT or SOT Segment

Creating an Audio-Only NAT or SOT Segment
 
When editing a sequence, you might need to replace an unneeded video segment, such as an on-camera stand up, while keeping the audio. If you want to replace the video but keep the audio, you can perform a video-only overwrite edit. The audio segment remains in the timeline, without associated video, and you can edit the audio segment independently.
The following illustration shows a selected video segment and its associated SOT audio on the left (as shown by the orange outlines), and the same sequence after a video-only overwrite edit. The video segment on the right is colored purple to indicate there is no associated audio. The SOT segment remains blue, and the clip name is darker than clip names for audio segments associated with a video segment.
If you enable both NAT and SOT for a segment (as described in Adding and Removing Audio Segments), you can overwrite the original video and keep both NAT and SOT segments.The following illustration shows NAT and SOT tracks that are not associated with a video segment. The video segment above the selected NAT track is colored purple to indicate there is no associated audio. The NAT segment remains green, the SOT segment remains blue, and the clip names are darker than clip names for audio segments associated with a video segment.
To create an audio-only NAT or SOT segment:
1. Edit a clip with NAT or SOT audio into the sequence.
2. (Optional) Enable a second audio segment (NAT or SOT).
3. Load a clip into the Media pane and set In and Out points for video to replace the video segment in the timeline. The marked video must be the same length or longer than the video segment you want to replace.
4. Perform an overwrite edit.
For more information, see Performing an Overwrite Edit in an Advanced Sequence.
5. If necessary, trim the transitions to align audio and video.