Subtitles are textual versions of the dialog in films and television programs, usually displayed at the bottom of the screen. They can either be a form of written translation of a dialog in a foreign language, or a written rendering of the dialog in the same language, with or without added wikipedia.org

Medical transcription, also known as MT, is an allied health profession, which deals in the process of transcription, or converting voice-recorded reports as dictated by physicians and/or other healthcare professionals, into text format. wikipedia.org

A transcription service is a business which converts speech (either live or recorded) into a written or electronic text document. Transcription services are often provided for business, legal, or medical purposes. wikipedia.org