が開く音

sound of opening

→ が

phrase Rare #26,629

sound of opening Used to describe or indicate the sound of something opening, often a door. In parentheses, it can function as a sound effect or stage direction. The thing opening is usually named before が, as in ドアが開く音 (the sound of a door opening).

JA: 玄関のドアが開く音が聞こえた。

EN: I heard the sound of the front door opening.

戸が開く音が聞こえた。

I heard the sound of the door opening.

（戸が開く音）

(The sound of a door opening.)

— バトル・ロワイアル (2000)

（窓が開く音）≪宗介≫

(The sound of a window opening) Sosuke

— 崖の上のポニョ (2008)