The textbook "Machine Acoustics" is aimed at engineers, scientists, and advanced students in mechanical engineering. It provides a comprehensive introduction to the physical, machine acoustic, and measurement fundamentals, as well as the mathematical methods necessary for understanding and applying knowledge in this field. The second, newly revised edition takes into account the rapid developments in numerical methods and offers current insights and techniques that are relevant for professionals. The content is structured to cover both theoretical and practical aspects of machine acoustics, making the book a valuable source of information for anyone involved in noise reduction and sound transmission in machines and systems.