Hi,

It is possible to add a noise, or a shake modifier on a fcurve / motion ? (like in LW)

ICE kinematics is suited for this task.

hi !

Thank you very much, you are just awsome !
But the turbulence node dont let me tell the amplitude of variation. How to change the size, and but channel X, Y or Z ?

It's a vector, just an entity containing 3 simple numbers, each representing one of the axes. If you multiply the vector with a scalar (multiply by scalar node), you will change it's magnitude and thereby the strength of the turbulence-node's effect.
If you want control over the channels separately, I would just use a 3D Vector to Scalar-node, which's manipulated outputs you can then plug into a Scalar to 3D Vector-node, giving you once again a vector to plug into the translation port of the SRT to Matrix-node.

works very nice, now i have a compound that can add noise on channels ! thank you very much for help