does it sound like its coming from the right hand side of the engine bay?
If so, its probably the rubber engine mount loose where it screws into the chassis.
To check...... take off the undertray and place a jack under the engine with a piece of wood to avoid cracking the sump, jack and support the engine (just take the weight, dont jack it up), remove the big engine cover if it has one, remove the ally engine mount bracket from the drivers side, now try and unscrew the big ruber mount from the chassis by hand, if you can then its loose and is the cause of your noise, there is a special tool to tighten it but you can do it with a hammer and a pry bar, tighten the mount by tapping it round with the hammer and pry bar then reassemble the bits you took off.