Lecture 7 of the NPTEL course on "Noise Control in Mechanical Systems", focuses on sound propagation at medium boundaries. The lecture explains crucial phenomenon such as reflection, transmission and absorption of sound waves. this lecture also describes the acoustic impedance of material. These topics are crucial to understand the interaction of sound waves with different material and environment.

Stay tuned as we uncover more about noise control techniques in upcoming lectures.

Course Name: "Noise Control In Mechanical Systems"

Course Instructor:
Prof. Sneha Singh
Department of Mechanical & Industrial Engineering,
Indian Institute of Technology, Roorkee.

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