Voice is still the main communication tool for us in our daily lives. Human posture is one of the important factors affecting the quality of sound and professional voice users have the ability to place their voices which is the ability to project ones voice to a location without necessarily turning there. An informatics based assistance system was developed to help voice therapists in their voice placement and posture improving therapies. This multi-modal support system which uses motion capture and multi array microphones to give feedback to doctors and patients in real time. In this work the efficiency of this system was demonstrated with user experience and usability tests done on human subjects.