noun
soundproofing device; soundproofing equipment
Refers to a device or apparatus used to block or reduce sound transmission, such as soundproof panels, enclosures, or insulation materials.
この部屋には防音装置が設置されている。
This room is equipped with soundproofing devices.
工場の騒音を減らすために
We introduced soundproofing equipment to reduce the factory noise.