The Voice and Voice Therapy, Eleventh Edition. Video 9-1 Glottal Fry

In this video from the book The Voice and Voice Therapy, Eleventh Edition by Richard I. Zraick and Shelley L. Von Berg, glottal fry is used as a diagnostic probe for patients who need to reduce laryngeal hyperfunction and increase the opportunity for relaxed vocal fold vibration. In the case of irregular vocal fold vibration due to scarring, glottal fry encourages easy and relaxed vibration while reducing demands on breath support. Note on the video segment that glottal fry is used as a diagnostic probe for patients presenting with vocal hyperfunction for reasons ranging from vocal overuse to spasmodic dysphonia.