Reply To: Noise abatement

To cover the insulation, there exist perforated drywall/plasterboard.
example: look for usgboral.com/en_ph/products/wall/technical-plasterboards/echostop-perforated-plasterboard.html

Another option is acoustic perforated hardboard

example: look for tablex.us/commercial-and-residential-benefits-of-perforated-hardboard-sound-proofing/

note I don’t insert a complete link, otherwise the comment might not be visible for many days (I would get “your comment is awaiting moderation”)