The Vocal Joystick: evaluation of voice-based cursor control techniques for assistive technology

Disability and Rehabilitation. Assistive Technology
Susumu HaradaJeff A Bilmes

Abstract

Mouse control has become a crucial aspect of many modern day computer interactions. This poses a challenge for individuals with motor impairments or those whose use of hands is restricted due to situational constraints. We present a system called the Vocal Joystick which allows the user to continuously control the mouse cursor by varying vocal parameters such as vowel quality, loudness and pitch. Evaluations were conducted to characterize expert performance capability of the Vocal Joystick, and to compare novice user performance and preference for the Vocal Joystick and two other existing speech based cursor control methods. Our results show that Fitts' law, a well adopted model of human motor performance for movement tasks, is a good predictor of the speed - accuracy tradeoff for the Vocal Joystick, and suggests that the optimal performance of the Vocal Joystick may be comparable to that of a conventional hand-operated joystick. Novice user evaluations show that the Vocal Joystick can be used by people without extensive training, and that it presents a viable alternative to existing speech-based cursor control methods. The Vocal Joystick, with its ease of use, minimal setup requirement, and controllability, offers promise for ...Continue Reading

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Citations

Dec 14, 2012·Disability and Rehabilitation. Assistive Technology·Proadpran PunyabukkanaAtiwong Suchato
Mar 12, 2013·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Xueliang HuoMaysam Ghovanloo
Jan 15, 2010·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Tiago H FalkTom Chau
Jun 10, 2011·IEEE Transactions on Information Technology in Biomedicine : a Publication of the IEEE Engineering in Medicine and Biology Society·Behnaz YousefiMaysam Ghovanloo
May 26, 2017·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Lotte N S Andreasen StruijkEugen R Lontis
Aug 15, 2009·Neurorehabilitation and Neural Repair·Tyler SimpsonArthur Prochazka
Mar 24, 2010·Disability and Rehabilitation. Assistive Technology·Eugen R Lontis, Lotte N S A Struijk
Aug 5, 2011·Physiological Research·E DemjénZ Tomori
Jul 6, 2018··Phuc NguyenNam Bui

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