CART stands for Communication Access Realtime Translation. It was developed in the late 1970s. CART is a service that converts speech to instantaneous realtime text for people who cannot understand the speaker.
CART can be provided on site or remotely over the Internet. CART captioning is based on word-for-word capture of speech with a goal of 98.5% or better accuracy. CART providers include environmental sounds, such as laughter or the sound of sirens outside.