An Earcon configuration, specifying an Earcon and when to play it.
A function to determine whether or not to play this earcon on a point. The function is called for every point, receiving that point as parameter. It should return either a boolean indicating whether or not to play the earcon, or a new Earcon instance - in which case the new Earcon will be played.
- function | undefined
The ID of the point to play the Earcon on.
- string | undefined