Thumping rhythmic noise.

[aTercio]

Hi, 

since 2 weeks I've had a weird rhythmic noise in my A3 150 hp, AWD, Stronic. It is the loudest when I take my foot of the gas pedal and it fairly disappears when I accelerate or turn right. Here's the sound - 

 

Any ideas?

 

[Steve Q]

Could it be a wheel bearing or failing driveshaft?