TED-Ed: What’s a squillo, and why do opera singers need it?

The video explores how opera singers project their voices over an orchestra without microphones. It delves into the physics of sound, explaining how vibrations create sound waves and how harmonics and overtones contribute to the unique sound of each instrument. The video highlights the techniques opera singers use to emphasize certain frequencies, creating a powerful projection known as 'squillo'. It also discusses the role of biology and physical preparation in achieving these vocal feats, emphasizing the importance of lung capacity, posture, and vibrato.

What is the main reason an opera singer's voice can be heard over an orchestra without a microphone?

• The singer uses specific techniques to project their voice.

• The orchestra plays at a lower volume to accommodate the singer.

• The singer's voice is naturally louder than the instruments.

• The singer uses a microphone hidden in their costume.

What is the fundamental frequency in the context of sound vibrations?

• The highest frequency a note can reach.

• The lowest frequency at which a string vibrates.

• The frequency that is inaudible to human ears.

• The frequency at which sound waves travel through air.

How do opera singers manipulate overtones to enhance their vocal projection?

• By using a special type of microphone designed for opera.

• By singing at a lower pitch to avoid competition with instruments.

• By adjusting the shape and tension of their vocal folds.

• By using electronic devices to amplify their voice.

What is 'squillo' in opera singing?

• A method to increase lung capacity.

• A distinctive ringing timbre achieved by emphasizing certain partials.

• A technique to sing at a lower pitch.

• A type of aria performed in operas.

Why is vibrato used by opera singers?

• To synchronize with the orchestra's tempo.

• To reduce the volume of their voice.

• To lower the pitch of their voice.

• To create a fuller sound that stands out over the orchestra.