Transmission noise (Aveo DOHC 1.4 2006 manual)

Please have a look at this video Transmission noise clicks - YouTube

What is wrong with this transmission? It makes clicking noise when the wheel is rotated back and forth while the vehicle is raised (the noise remains at any gear). When switching the gear there is normal sound. But when driving there is one, sometimes two, clicks when the car starts moving and when the gear is changed from the first two the second one (no clicks when changing to higher gears). The clicks only appear when the car is in motion, when it is stationary there are no strange clicks when changing the gear. Is this normal? Thanks in advance for any comments!