Alaryngeal voice production refers to a method of generating sound without the use of the larynx. The larynx is the anatomical structure commonly known as the voice box that houses the vocal folds or vocal cords. It plays a crucial role in speech production as it controls the airflow and vibration of the vocal folds, producing voice.
However, in cases where the larynx is damaged, removed, or dysfunctional due to injury, disease, or surgical procedures, individuals may resort to alaryngeal voice production techniques to communicate. These methods allow for the production of sound and speech by utilizing alternative structures and mechanisms.
Alaryngeal voice production techniques vary depending on the individual's specific condition and circumstances. They can involve surgical interventions, such as tracheoesophageal puncture, in which a small hole is created between the windpipe and the food pipe to allow air passage, or the use of medical devices like tracheoesophageal voice prostheses.
Another approach is Transnasal Hum (TNH) voice production, where individuals create voice by manipulating airflow through the nose while closing the mouth and pharynx. Other techniques include the use of esophageal speech, artificial larynx devices, and non-verbal communication aids.
Alaryngeal voice production techniques are an important aspect of rehabilitative therapy for individuals who have lost their ability to speak with their natural larynx. These methods aim to help them regain functional communication skills, enabling them to express themselves and engage in social interactions.
