A professional who diagnoses and treats voice disorders, such as those associated with professional use of voice. Responsibilities include:

• Develops and implements perceptual evaluation procedures and psychophysical methods for voice assessment.
• Collects diagnostic data on individuals, such as output pressures, airflow, chestwall movements, and articular and laryngeal displacement, using scopes and other measuring instruments.
• Analyzes and interprets diagnostic data and consults with otolaryngologist and other professionals to determine method of treatment, such as surgery, vocal modification, or voice therapy.
• Plans and conducts voice therapy sessions, applying auditory, visual, kinematic, and biofeedback techniques.
• Plans and conducts voice hygiene workshops.
• Calibrates equipment.
• May teach voice science to associates and direct research in area of voice.
• May establish procedures and direct operation of laboratory specializing in diagnosing and treating voice disorders and be designated Director, Bio-Communications Laboratory.