noise from trans axle area on 2006 Mazda Mazda3

when the car is moving slow there is a whinning noise coming from the trans. I just replaced the motor mounts that did not help any. When I get up to speed the noise seems to light up. Any ideas would help me.

Asked by for the 2006 Mazda Mazda3
poss out put bearing,seek futher diag and est
thank you for yoyr advice