<unk> , also known as<unk>  voice, is an airstream mechanism for speech that involves oscillation of the esophagus. This contrasts with traditional laryngeal speech, which involves oscillation of the vocal folds. In<unk> , pressurized air is injected into the upper esophagus and then released in a controlled manner to create the airstream necessary for speech.<unk>  is a learned skill that requires speech training and much practice. On average it takes 6 months to a year to learn this form of speech. Because of the high level of difficulty in learning<unk> , some patients are unable to master the skill. The Voice Quality Symbol for<unk>  is Œ.
Esophageal speech
Pharyngeal reflex
Alaryngeal speech
Pressure of speech
Tragal pressure
Place of articulation
Cough reflex
Acoustic reflex