Base items of content may be conveyed by a user computing device. These base items of content may be enhanced with enhancement content, such as sounds, songs, video clips, animations, images, multimedia content, and the like. Characteristics and enhancement objects may be identified in a portion of the base item of content, and enhancement content may be assigned to that portion automatically by a content enhancement service. In one embodiment, enhancement sounds or songs may be provided and conveyed to enhance an audiobook or electronic book.