What's a squillo, and why do opera singers need it? | Ming Luke - a podcast by TED

An orchestra fills an opera house with music, but a singer's voice soars above the instruments. Its melody rings out across thousands of patrons— all without any assistance from a microphone. How is it possible that a single voice can be heard so clearly? The answer lies in the physics of the human voice. Ming Luke explains the carefully honed technique of an expert opera singer. [Directed by Franz Palomares, narrated by Addison Anderson].

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