You can create and save video-only or audio-only Sequences or news sequences. When working in a news sequence, the sequence must contain both audio and video tracks. However, you are not required to add media to all tracks. In the case of an audio-only news sequence, the assets must be placed on the VO track. When working in a Sequence, you can create a true audio-only or video only sequence by deleting the unused tracks.

Send-to-playback and other workflows are not supported for video-only or audio-only sequences. Sequences must include both audio and video tracks, and media. If you want to send an audio-only or video-only sequence to playback, you can add a 0db audio asset or a black video asset as a workaround.