To make a sound; to produce a noticeable noise (used for objects or actions that cause audible sound).
夜中に窓が風で音を立てて、目が覚めてしまった。
In the middle of the night the window made a noise in the wind and woke me up.
子どもが積み木を床に落として大きな音を立てた。
The child dropped the building block on the floor and made a loud noise.
図書館では音を立てないように静かにしてください。
Please be quiet and avoid making noise in the library.