my a3 1.6 fsi 6 speed is making this sound when cold, any ideas?

Sorry Thodoris, but even at maximum volume the sound is quiet and I hear nothing unusual.

now? listen when i release gas

Yes I can hear it now and it sounds horrible, though I can not positively identify the noise. Possibilities to examine are: loose timing chain (if you have one), broken exhaust mounting, worn bearing in alternator or water pump or power steering pump, worn turbo (if you have one).

listened to both recordings   to me it has the makings of a bearing lubrication failure somewhere.

two man job to pinpoint the source .