Isometric game sound emitters

I'm doing an isometric game, a view kind of like The Sims. right now I have an ortographic camera looking slightly downwards, and when I move it about x and y, the movement effect is exactly how I want it, but the camera actually moves closer and farther from the ground, it's just not noticeable because of the projection.

The thing is that the audio levels ARE affected by this distance, how can this be fixed? Maybe I'm doing something VERY wrong with the camera.

Put the AudioListener into the scene.. and not attached to the camera like normal.

Uncheck the 3D property on your Audio Clips, this way the audio won't be affected by the camera at all.