The Gesture Vocalizer is a smart assistive communication system developed to help speech- impaired and physically challenged individuals convey messages using hand gestures. The system employs gesture-detection sensors such as flex sensors or accelerometers to recognize predefined hand movements. These gestures are processed by a microcontroller, which converts them into corresponding voice outputs through a speaker or mobile application. The device enables real-time communication without the need for verbal speech, making it highly useful in daily interactions, hospitals, and emergency situations. Users can customize gesture-to- message mappings, improving flexibility and usability. By combining sensor technology, embedded systems, and voice output, the Gesture Vocalizer enhances independence, accessibility, and social interaction for differently-abled individuals.
Pawar et al. (Thu,) studied this question.