This article is based on my thesis for music science and describes the scientific fundamentals of sound insulation and room acoustics firstly in general and then by taking a specific project into account. A room in room construction is built in a room with a floor area of 30m2 and a height of 4,8m. Efforts are being made to get maximum sound insulation also at bass frequencies at lowest possible material costs. The main focus lies on a lot of mass, flexible materials and lowest possible resonant frequencies for the inner layer and its flanking paths. It is meant to be both a summary of today's knowledge after extensive literature research and a best practice guide for similar projects such as rehearsal or recording rooms.
In this article I try to explain all about the most difficult problem to solve in small room acoustics.
If you still have open questions after reading it, send me your questions and I will try to update the article.
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