The webinar provides an in-depth inspection and rationale for using the human voice as a source of purposeful information related to Biofeedback processes.  The process of voice production involves a sequence of complex biological activities. It originates from the production of airflow in the lungs, which is modulated by the vocal folds (for voice sounds). It is possible to determine the time duration of one glottal cycle, which is known as pitch period and the reciprocal of pitch period to determine the fundamental frequency. The value of the fundamental frequency is influenced by many factors like vocal fold muscle tension, vocal fold mass, and the air pressure behind the vocal folds.