The book addresses the physical and physiological foundations of technical acoustics, issues related to machine and room acoustics, as well as acoustic measurement technology. It extensively covers questions of sound generation, air and structure-borne sound propagation, and noise reduction, particularly as they occur in rail and road traffic. The contributions have been thoroughly revised and expanded compared to the previous edition. Thus, the book not only describes the current state of technical acoustics but also serves as a resource and guide for engineers in tackling acoustic problems and challenges.