防ぼう音おん性せい

noun

soundproofing quality; sound insulating properties

Refers to the degree or property of blocking or absorbing sound, often used in technical or product descriptions.

• この壁かべは防ぼう音おん性せいが高たかいので、隣となりの部屋へやの音おとが聞きこえにくい。

  This wall has high soundproofing quality, so it's hard to hear sounds from the next room.

• 防ぼう音おん性せいを重じゅう視しして、窓まどに二に重じゅうガラスを選えらんだ。

  I chose double-glazed windows, prioritizing sound insulation.