When posting audio / video files online in a course site, we definitely need to post at least a text file containing a transcript/summary of the content of the media file with the media file even when we don’t know of a specific special needs student in a course.
If a student specifically request captioning, then captions need to be provided as well. This is a time consuming process to provide captions, so it is always best to provide captions up front, since we do not know when a student will request captions. Also you will never know which students will benefit from captions even if they are not a special needs student.
When posting audio/ video files online, which are to be used for a short / limited time for a specific class of students we definitely need to post at least a text file containing a transcript/summary of the content of the media file with the media file, even if it will be used just for this one class of students.
If using a video on YouTube, or posting a video to YouTube and captioning is provided by YouTube, the instructor needs to verify that the captions accompanying the video file are accurate. If the captions are not accurate, then an accurate transcript of the video needs to be provided for students use as well.
If an instructor is using video/film files that have not been created by the instructor and captions are not available, and is posting these video/films online through the copyright fair use guidelines, then we need to post at least a text file containing a transcript/summary of the content of the media file with the media file. Providing captions would be best, and is mandatory if a student request captions.
If a course provides a live, on-site instruction that is recorded to audio or video and posted to online, then captioning is not mandated for the online posting of the audio/video file because it is given originally in a face to face setting. But if a student is allowed to access the recorded content of the course only through the online delivery of the recorded live class and does not need to attend the actual class in the live session then transcript is required on the audio video files, captioning highly recommended. A transcript would be required but would not need to be posted for everyone (so by request only). But, if that student has a hearing impairment we would need to automatically provide the transcript, captioning highly recommended. There is still the possibility of having CART arranged for a hearing impaired student.