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Here are 10 tips to improve the Sound Transmission Class (STC) between rooms. STC is described below the tips. Extend the wall to the structure. In office spaces, as a minimum extend the all above the acoustic tile ceiling.       The path through the ceiling tiles (CAC) may be the week path. Seal […] The post Sound Isolation – 10 tips to improve the STC of walls appeared first on Noise Engineers - Acoustical Consultants - Environmental Noise, Room Acoustics, Sound Isolation, STC, Vibration.