Voice therapy techniques are behavioral therapy methods that use pedagogical approaches of arts training (ie. singing and theatre) and sound physics structured on medical grounds. The main goal is to obtain a target voice that is the best possible voice within the patient’s anatomic and physiologic capabilities.

Among numerous methods, the LAXVOX Tube Exercise with the combination of artificial elongation of the vocal tract and semi occlusion by water resistance works as an effective tool for healing the voice production apparatus and improving its function. The ‘domino effect’ goes with lowering the larynx and proper abdominodiaphragmatic respiration. LAXVOX provides multichannel biofeedback through various exercises and creates holistic cognition of the vocalizing process.

Marketta Sihvo, Ph.D., a Finnish speech and voice therapist, introduced her LAX VOX method, giving workshops at numerous international voice conferences since early 1991. She got the idea to give her patients a “tube and bottle” of water for phonating into the water through a flexible silicone tube. Most of them were surprised, curious, and liked it. In a few minutes, the user can perceive the idea of healthy voice production. A tube is an easy tool to carry in the pocket or handbag and to be used to warm up and cool down the voice system before and after a demanding vocal task, or when necessary and for fun. By adequate questions, the laxvoxer may be led to insights, to consciousness, and knowledge of the possibilities of one's own voice control and, obviously, of one's (bad) vocal habits. Own insights are assuring and easy to believe, and clearer than any verbal explanations. This method teaches a way to help oneself, prevent vocal failures, and find relief.

A Turkish laryngologist, Ilter Denizoglu, attended Sihvo’s workshop at PEVOC 2003 in Graz. Later, he used his professional knowledge to explain why the phonation into the water through a tube is experienced so effectively. He created a crucial supplement to Sihvo’s workshop with his excellent explanations on the interactions between anatomical, physiological, physical, and acoustical aspects. To put it short, the oral pressure, increased by water, widens the vocal tract during phonation, preventing harmful tensions in the laryngeal area. The tube between protruded lips serves as a voice track extension that has an impact on the sound. The biofeedback helps the laxVOXer to become conscious of his or her way of healthy voice production. laxVOX tube is a simple tool for immediately correcting and facilitating the function of the vocal mechanism in a short time. It changes the agent’s behavior and attitude, bringing freedom and joy to voice use. Thus being a holistic method that affects the interaction of phonation, posture, breathing, and laryngeal function at all pitches. This is a cognitive approach giving multichannel biofeedback. Therefore, the laxVOX tube is a simple, useful tool for starting voice cure, care, vocal education, and adopting good vocal habits. Singers may apply laxvoxing to their normal exercises and singing tasks.