Which system can enhance sound transmission class (STC) ratings in wood frame walls?

To enhance sound transmission class (STC) ratings in wood frame walls, utilizing a system of resilient channels is highly effective. Resilient channels are designed to decouple the drywall from the underlying framing structure. This decoupling significantly reduces the amount of sound being transmitted through the wall assembly by allowing the drywall to vibrate freely, which diminishes sound energy transfer from one side to the other.

The installation of resilient channels creates an air gap between the drywall and the studs, further enhancing sound isolation. This method is particularly beneficial in residential constructions where noise reduction is essential for comfort.

While soundproofing insulation and acoustic panels can contribute to sound control, they do not provide the same level of decoupling effect that the resilient channels offer. Standard drywall alone would not enhance STC ratings effectively without additional soundproofing measures. Thus, implementing a system of resilient channels is considered one of the most effective techniques for improving STC ratings in wood frame walls.