Dsg box noise low speed down shifting

[Kingy1977]

Hi everyone recently purchased a 170 12 plate with the dsg box recently noticed a noise when at low revs it's a little similar to a manual box changing down at a to higher rev but this is happing at around 1200 rev mark was wondering if it is engine noise exhaust or gearbox noise any help would be appreciated it certainly doesn't sound terminal but it is slightly annoying thanks for reading .