A physician's tour of vocal fold oscillation - the three conditions voice requires, what Bernoulli really does, and why straws work. Plus thyroid disease and the voice.

Can you start voice on airflow alone? Dr. Curt Stock brings the answer back from the Summer Vocology Institute and settles it. You will get vocal fold oscillation from the ground up: the three conditions phonation requires, open and closed quotient, typical fundamental frequencies from infant to bass, and the adductor muscles - LCA, interarytenoids, vocalis - that do the closing. He explains the Bernoulli effect with a drafting-behind-a-semi analogy, shows what a straw does to the ventricles and epilaryngeal tube, and maps the layered structure of the fold where damage occurs. The talk closes with an extended Q&A on Hashimoto's, Graves' and vocal swelling.