This highlights common areas where acoustic treatment can be installed. Specifically acoustic panels. Any space that has a lot of hard surfaces, echoes, and requires speech intelligibility is an ideal candidate.
Examples for acoustic panel installation in this video include:
Restaurants, Coffee Shops, Bars, Clubs, Private Offices, Board Rooms, Open Offices, Sales Floors, Fitness Facilities, Retail Spaces, Personal Services Facilities, Living Rooms, Home Theatres, Home Offices.