The following guidelines apply to both in-person and virtual events. Event organizers must carefully consider these guidelines when planning an event. For a listing of local ASL and CART service providers, or for information about support with in-person events, please visit the ASL, CART and Captioning Resources page.
Note: Where CART services are required, automated captioning should not be used.
Captions provide the textual equivalent of audible information. This includes spoken words and other audible information, such as meaningful sounds. Captions can be delivered in real time by a professional transcriber (live captioning) or they can be machine-generated (automatic captioning). They can also be added to pre-recorded videos.
Sometimes referred to as live captioning, CART is a real-time, speech-to-text transcription service whereby a professional (human) transcriptionist, using a steno machine, transcribes audible information for display either on a large display for in-person events, or streamed via a web conferencing platform. The transcriptionist can be present in the room during an in-person event or can receive the audio feed remotely, and the text feed is transmitted back to the room display.
Automated captioning involves the use of speech recognition technology to produce captions. Speech recognition can be used to generate captions for pre-recorded videos or can sometimes be used to generate real-time captions. There are hundreds of speech-to-text products available, some of which are built into web conferencing platforms. Please keep in mind that auto-generated captions are not always fully accurate and can result in errors that impact the information or context of what is being communicated. A professional captioner offers more accuracy in delivery of information but must be planned for in advance.
Signed language, for example American Sign Language (ASL) is a form of communication that uses hand movements and facial expressions. Signed languages are not signed versions of spoken/written language, rather they are complete languages, with their own linguistic properties. This is why ASL or another form of signed language may be needed in addition to/instead of captioning
Web conferencing tools are collaborative tools that facilitate synchronous meetings, screen sharing, webinars and other online events.