by Julieanne Kost
After converting a video clip into a Smart Object, the options for Audio and Video (including the mute option) change to Motion options.
To access the Audio and Video options after converting the clip to a Smart Object, double click on the Smart Object’s thumbnail in the Layers panel. The contents of the Smart Object will open in its own window. On the Timeline panel, use the triangle in the upper right of the clip to access the Video and Audio options. Click the Audio icon and check Mute Audio. Then, save the open document (the “contents” of the Smart Object). Upon close, the smart object updates in the original document.