Abstract: Mechanisms are provided for generating audio descriptions of visual elements of video content. A plurality of extracted video features for the video content are received from an image recognition and analysis system. Based on the extracted video features, one or more audio descriptions are generated that describe the extracted video features audibly. At least one temporal location within the video content is determined, in which to place the one or more audio descriptions so as to minimize overlap with other audio features of the video content and other audio descriptions. An audio description data structure is generated that specifies the temporal location(s) within the video content for the one or more audio descriptions. The audio description data structure is provided to a client computing device for playback of the video content including output of the one or more audio descriptions.