Double Glazed or Laminate glass stacker doors?

Hi everyone,

We are building a double story house in Sydney and have 3 stacker doors (3.6m-3.2m-2.4m wide) in our family, kitchen and dining area (total area:64m2).

We are a bit concerned about outside noise being heard and thermal performance of the stacker doors, so we are thinking about upgrading to double glazing (4/10/4mm with argon gas). The cost is $2000 (excluding one custom awning window that can not be double glazed). We have also heard about the benefits of laminated glass, but we are not sure which one is better. Do you recommend going with double glazing or laminated glass? are these options effective for reducing noise coming from stacker doors (due to the gap between the panels)?

Thanks.