Add descriptive audio tracks in Compressor
You can create video content for people who are blind or low vision by adding descriptive audio tracks. Descriptive audio tracks narrate important visual details that can’t be understood from the main soundtrack alone. Compressor can extract the descriptive audio tracks from audio files like WAVs or AIFFs, or from video files like MOVs. You can embed descriptive auto tracks, like language tracks, in the QuickTime Movies, Apple Devices, and MPEG-4 formats. For more information about descriptive audio, see the American Council of the Blind’s Audio Description Project website.
Add descriptive audio tracks
In the Compressor batch area, select the job that contains the source file that you want to add descriptive audio tracks to.
In the Audio Properties area of the Job inspector, click Choose, and select a file containing descriptive audio tracks, then click Open.
The audio tracks from the file are extracted and listed in with the other audio tracks. Audio tracks with descriptive audio are indicated with
.
Remove descriptive audio tracks
In the Compressor batch area, select the job that contains the source file that you want to add descriptive audio tracks to.
In the Audio Properties area of the Job inspector, click the clear button
to remove all descriptive audio tracks.
Download this guide: PDF