REAL TIME SPEECH TO BRAILLE CONVERSION TABLET FOR VISUALLY IMPAIRED
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Date
2025-05-06
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Abstract
The Real-Time Speech-to-Braille Conversion Tablet is an innovative assistive device
designed to bridge the accessibility gap for individuals with dual sensory impairments—
visual and hearing disabilities. Recognizing the challenges faced by these individuals,
including limited access to Braille resources, high costs of existing technologies, and barriers
to real-time information, this project aims to deliver a cost-effective, portable, and
functional solution. The tablet converts spoken English into tactile Braille characters,
allowing users to access real-time auditory input through touch.
The core of the system features a dynamic Braille cell operated by solenoid actuators
controlled by an ESP32 microcontroller. Speech input is captured via a microphone,
processed through Python-based speech-to-text algorithms, and subsequently converted
into Braille representations. The system updates the single Braille cell every five seconds,
displaying successive characters in a sequence. This design ensures portability and costefficiency
while maintaining functionality.
Key objectives of the project include addressing the high cost of traditional Braille systems
by using affordable components like solenoid linear motors, enabling real-time speech-totext
conversion, and enhancing accessibility to educational and communication resources.
The device fosters independence and reduces reliance on caregivers by offering a reliable,
user-friendly interface tailored for visually and hearing-impaired individuals. Additional
features include a scalable design, with potential future expansions to support multilanguage
speech recognition, multi-cell Braille displays for faster reading, and integration
with other assistive technologies.
By broadening access to information, the Speech-to-Braille Conversion Tablet is poised to
transform the learning and communication experiences of visually and hearing-impaired
individuals. Its innovative approach to affordability, portability, and real-time functionality
establishes a new benchmark for assistive technology in this domain.