Mostly the visual or text format on the websites is accessible for deaf people. But now days more and more video, audio, and multimedia content are making its way to the Internet. Movies are available online, as well as television shows, news programs, video blogs, and other rich content.
The major concern with deafness is the accessibility of audio, in either audio-only formats, or audio combined with video.
The best solution of this problem is usually to provide a transcript of the audio. The transcript should include all of the narration, dialog, and other important sounds, like applause, crashes, music, etc.
Web Design Considerations for Deafness
All videos on the website must have captions. Without captions, deaf people may miss important information communicated through dialog and narration and may miss important sounds that give meaning to the video.
All audio-only material must have transcripts. Transcripts are required to convey all of the information being communicated by audio, including dialogue (and identifying speakers), narration, musical cues, and sound effects.
3 sign language
Sign language interpretation of videos can be very useful. There are some deaf people who find easy to communicate with sign language. For this group, sign language interpretation may be preferred over captions and transcripts.