OITC steps seem depth decline in decibels, just like STC. OITC isn’t as well-regarded as STC, but it surely’s arguably an even better way to fee soundproof glass windows mainly because it specifically targets loud noise inside the small to mid-frequency variety. Phase two awards will probably be based on https://raymondapxgk.ampblogs.com/acoustic-window-upgrades-in-fitzrovia-fundamentals-explained-63161000