Framerate independent event

[ATHellboy]

I receive bang from pure data with LibPD.Bang event then I play the sound by FMOD.

The problem is I receive bang frequently, for example each 500 ms but event doesn't trigger in specific length of frame. Usually length change 1 frame less or more.

Now I want to know any solution for this problem ? For example framerate independent event.

Because there is tempo for playing each sound and just 1 frame ruins rhythm.

I need to sync sounds for playing by each separate bang.