静せい音おん化か

noun, noun or participle which takes 'suru'

noise reduction; soundproofing; damping

Technical term for making something quieter, often used in engineering contexts such as machinery, vehicles, or buildings.

• この車くるまはエンジンの静せい音おん化かが進すすんでいる。

  This car has advanced engine noise reduction.

• オフィスの静せい音おん化かのために吸きゅう音おんパネルを設せっ置ちした。

  We installed sound-absorbing panels to soundproof the office.