Lecture 29 of the NPTEL course on "Noise Control in Mechanical Systems", covers noise criteria for indoor spaces, including Noise Criteria (NC), Noise Rating (NR), Room Criteria (RC), and Balanced Noise Criterion (NCB) curves. Lecture focuses on how to determine ratings and apply recommended NCB values for better acoustic environments.

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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