Abstract:Braille is an important medium for visually impaired people to get information and learn knowledge. Because the traditional paper-based braille learning method only presents braille by tactile stimuli, it is hard for visually impaired people to master braille. The paper braille documents are too cumbersome to use, and their content cannot be refreshed. To improve the braille learning efficiency, we propose a digital braille learning method based on synchronous stimuli of vision, audition, and touch. On a braille learning machine with the functions of multi-sensorial channels, we design an information matching algorithm for text, sound, and braille dots. This method can synchronously output visual, auditory, and tactile stimuli, which provides reasonable conditions for visually impaired people to learn braille efficiently. With the short-term memory research method, the experimental results are as follows: (1) The braille learning efficiency is the highest with the combination of visual, auditory, and tactile stimuli; thus, for people with weak vision, the visual stimulus is powerful to improve their braille learning efficiency. (2) The braille learning efficiency is lower with the combination of auditory and tactile stimuli, and thus it is hard for the blind to master braille in a short period. (3) The braille learning efficiency is very low with only the auditory stimulus; thus, APP only providing auditory stimulus to learn braille is less useful.