  This is the preprint version of our paper on 3rd International Workshop on
Virtual and Augmented Assistive Technology (VAAT) at IEEE Virtual Reality 2015
(VR2015). An assistive training tool for rehabilitation of dysphonic patients
is designed and developed according to the practical clinical needs. The
assistive tool employs a space flight game as the attractive logic part, and
microphone arrays as input device, which is getting rid of ambient noise by
setting a specific orientation. The therapist can guide the patient to play the
game as well as the voice training simultaneously side by side, while not
interfere the patient voice. The voice information can be recorded and
extracted for evaluating the long-time rehabilitation progress. This paper
outlines a design science approach for the development of an initial useful
software prototype of such a tool, considering 'Intuitive', 'Entertainment',
'Incentive' as main design factors.
