Discover the essential principles of engineering acoustics with the updated “Physical Approach to Engineering Acoustics” from The Bookish Owl. This comprehensive textbook, ideal for undergraduate and graduate students in ME, EE, and physics, delves into noise reduction, measurement, and the design of microphones and loudspeakers. The second edition introduces new analyses on muffler and duct acoustics, including sound propagation in variable cross-section ducts. Emphasizing Newtonian mechanics over electrical analogies, this edition offers a more direct modeling approach. With end-of-chapter problems and MATLAB routines, it’s a crucial resource for students and professionals in the booming miniature microphone industry, powering devices like cell phones and hearing aids.