Audio Effects on Unity3D?

This question just came to me one day, out of curiosity…

Is it possible to add environmental effects on audiosources, such as reverb or echo?

As an example the PC footseps are normal outside, but inside a cave the footseps are echoing.

Is there a way to add this extra effect directly to audiosource or would this require different audioclips: one normal and one with added reverb?

Ile

AudioFilters are indeed available in Unity 3, given you bought the Pro license.
In the free one they won’t be available.