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This paper introduces a text entry application for users with physical disabilities who cannot utilize a manual keyboard. The system allows the user to enter text hands-free, with the help of "Non-verbal Vocal Input" (e.g., humming or whistling). To keep the number of input sounds small, an ambiguous keyboard is used. As the user makes a sequence of sounds,(More)
ii ACKNOWLEDGMENTS Many people have contributed to the completion of this research effort, and I am grateful to them all. I would particularly like to acknowledge the following people for their contributions: To my chairperson, Dr. John K. Antonio, for his patience, support, guidance, and technical expertise throughout this research effort. He is an(More)
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