I've had this intermittent issue for over a year now.
If I'm turning (mainly notice it turning right) and going up an incline as I slowly accelerate there is a growning noise coming from the front. It does it a lot turning into our estate as the entrance is a small hill. I may also get it existing a round about if it's on a hilly bit of road. Power to the car seems to be lessened. Auto trans maybe?
2012 VibeS.