I’m in the process of converting part of my garage to a office/ sound studio and need to work out the best way to minimise sound from outside. I’m close to neighbours on 2 sides and want to minimise the sound of kids playing / lawnmowers etc. The garage is exterior build and single skinned. I have minimal budget but have read 2 plaster boards on the wall is best but I’m a total newbie. this will also effect if I use a stud wall or plasterboard+insulation panels. I need to consider the ceiling and floor to. Any help welcome- thank you.