The highly respected company Advent Group, contacted the team of Acoustic Force to look for a professional opinion for improving noise insulation between two training rooms, where a movable glass wall has been installed. Prior to the intervention of our team, conducting two training sessions simultaneously in both rooms was impossible, despite the glass wall. It was extremely important for the client to achieve maximum results for increasing the sound insulation between the rooms without making magior renovations. Our team take the request very responsibly and first performed an on-site inspection to analyze and give an opinion on the reasons for the reduced insulation.