Help me make this code more manageable C# Audio for collisions

I'm just looking for any recomendations that would make this code better. If I go ahead in this manner is going to be a huge bit of code which I think is avoidable but the way to do this is beyond me right now. This going to grow out of control very quickly.

Code (csharp):

1.  
2. public enum PhysicMaterialType
3. {
4. SoundFailure = 0,
5. AsteroidBall,
6. BalloonRubber
7. }
8. public void PlaySoundBasedOnCollision ( PhysicMaterialType phyMatA, PhysicMaterialType phyMatB )
9. {
10.  
11.     switch ( phyMatA )
12.     {
13.         case PhysicMaterialType.AsteroidBall:
14.             {
15.                 CheckAsteroidBallCollision ( phyMatB );
16.                 break;
17.             }
18.         case PhysicMaterialType.BalloonRubber:
19.             {
20.                 CheckBalloonRubberCollision ( phyMatB );
21.                 break;
22.             }
23.    }
24. }
25. void CheckAsteroidBallCollision ( PhysicMaterial phyMatB )
26. {
27.  
28.     switch ( phyMatB )
29.     {
30.         case PhysicMaterialType.AsteroidBall:
31.             {
32.                 //Play AsteroidAsteroidBallSound
33.                 break;
34.             }
35.         case PhysicMaterialType.BalloonRubber:
36.             {
37.                 break;
38.             }
39.    }
40. }
41.