Vintage noise-control information Maybe you don’t have a immediate need for it, but the web offers historical references for acoustical applications. You can find some of it in the public domain at the Internet Archive. Some of the documents are
What is STC? STC is the acronym for Sound Transmission Class. It measures how a material attenuates airborne noise. The STC is roughly equivalent to the decibels that get reduced by a barrier like a wall or a window. So,
So what is SoundPrint? It’s an app that you can download from the App Store (iPhone) or Google Play. It’s free, and it’s a great way to share your decibel-level experience with other people. How can it help me? It’s