Hello I've some problems with playing sounds on collisions.

I have some cans/tins in my world and can shoot them around.
Now I want them to play a sound when they collide with each other or falling on the ground or hitting a wall.

So i wrote in the CollisionEndCallback a command playing a sound.
But now they make this noise all the time they are touching each other or when they are rolling on the floor.

I've read in the Newton manual that it is possible to check in the CollisionProcessCallback how strong an Impact was to play sounds only at heavy impacts.

But I dont know how I can check the impactspeed in the CollisionCallback Function.

Can anyone help me with this problem or did anyone still realised realistic impact sounds?

Greetings RATsoft