The contestant was placed in a soundproof booth so he could not receive help from the audience.

We soundproofed the room so we couldn't hear the road noises; unfortunately we couldn't hear the fire alarm either.

It almost goes without saying that the train is fully soundproofed, with double-glazed windows and highly efficient air-conditioning by the British firm of J. Stone.

Soundproofing a room may be as simple as sealing gaps around a door, or it may require rebuilding an entire wall or lowering a ceiling.

Soundproof

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Adj

Verb

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