Make stuff
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Soundproofing an Existing Ceiling in a Room
Learn how to soundproof an existing ceiling in a room using Insulation, Resilient Sound Clips, Furring/Hat Channel, a second layer drywall with Green Glue Noiseproofing Compound, Acoustical Putty ...
Sound proof phone booth
Buy sound attenuation panels from these guys (http://airhush.com) Buy 2 silencers (https://www.amazon.com/gp/product/B01CTM0H1S) for the duct Buy 1 inline quiet duct fan with temperature control (h...