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Listening CEFR B1 Topic: Anechoic chambers – the science of the world's quietest rooms

The Quietest Room on Earth

What this tests: listening for detail, opinion, attitude, purpose and what the speaker implies.

Instructions

Listen to the monologue about anechoic chambers. Then choose the correct answer (A, B or C) for each question, based only on what you hear.

🎧 Listen to the instructions

🎧 Listen to the recording, then answer the questions. You can replay it as many times as you need.

1. What lines the inside of the chamber to stop echoes forming?

A — Thick walls that keep outside noise from getting in B — Dense foam shapes that soak up sound C — A layer of padding that stops sound from escaping the room

2. Where is the chamber that currently holds the record for the quietest place ever measured?

A — A car manufacturer's test site in Europe B — A business based in the US state of Minnesota C — A research lab belonging to a space agency

3. How does the speaker describe the sound level inside the quietest chamber?

A — Measured on a special scale invented only for that room B — An extremely low but still ordinary positive reading C — Low enough to fall below what human ears can pick up

4. What do visitors begin to notice once every outside sound has been blocked out?

A — Noises from traffic passing outside the building B — Sounds coming from inside their own body, like their heartbeat C — The echo of their own voice bouncing off the walls

5. What is the record for staying alone in the dark inside the world's quietest chamber, according to the speaker?

A — About 30 minutes B — About 45 minutes C — About 60 minutes

6. Why were anechoic chambers originally built, according to the speaker?

A — To check sound-sensitive equipment for unwanted noise B — To give visitors a calm, relaxing experience C — To study how people react to complete silence

7. What does the speaker say car companies use these chambers for?

A — To measure the noise level of new engines B — To check space equipment for unwanted noise C — To test the sound quality of speakers

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🎬 Video walkthrough

This exercise read aloud, sentence by sentence: a pause to answer each question, the hint after the pause, then the answer and why. It gives the answers — try the exercise first.

14 min. All video walkthroughs