Communication systems for the nonvocal based on frequent phoneme sequences

Area of Science:

• Augmentative and Alternative Communication (AAC)
• Speech-Language Pathology
• Assistive Technology

Background:

• Neuromotor impairments often result in speechlessness, necessitating alternative communication methods.
• Existing nonvocal communication systems may lack flexibility or require excessive user effort.
• The alphabet, while flexible, can be slow for individuals with motor challenges.

Purpose of the Study:

• To introduce a new nonvocal communication system designed for individuals with neuromotor impairments.
• To develop a system offering greater flexibility and reduced selection effort compared to the alphabet.
• To create a communication method that potentially enhances language development for nonvocal users.

Main Methods:

• The system utilizes sequences of phonemes with high occurrence rates.
• Two versions are developed: 'Par le si la b' for French and SPEEC (Sequences of Phonemes for Efficient English Communication) for English.
• Implementation includes lapboard and encoded eye-gaze selection (Etran) charts, with potential for electronic device compatibility.

Main Results:

• The system is designed to be as flexible as the alphabet but requires fewer selection gestures.
• SPEEC is currently undergoing field testing.
• The approach is suitable for nonvocal individuals with good comprehension and the ability to learn sound-letter correspondences.

Conclusions:

• This phoneme sequence-based system offers an unrestricted and potentially faster communication mode.
• It may provide greater opportunities for language development and exercise compared to current AAC options.
• The system represents a significant advancement in assistive technology for nonvocal individuals.