# Acoustics

- Institution: IIT Kanpur
- Department: Mechanical Engineering
- Teacher: Prof. Nachiketa Tiwari
- Level: Undergraduate
- Language: English
- Subjects: Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/112104026)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/112104026)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

## Lectures

1. [Intro, sound wave versus vibration, different types of waves, octave, music scales, sense of SPL](https://invisiblenetwork.ai/learn/nptel/112104026/6fdf855ce17c) (Video)
2. [Review: Linearity, complex numbers, and spring mass system](https://invisiblenetwork.ai/learn/nptel/112104026/50a97bf5eb0b) (Video)
3. [Review: Poles and zeroes, phase and magnitude plots, transfer functions, Bode plots](https://invisiblenetwork.ai/learn/nptel/112104026/6c0de12162f0) (Video)
4. [Review: Transfer functions, and Bode plots](https://invisiblenetwork.ai/learn/nptel/112104026/39582a4096c5) (Video)
5. [1-D wave equation, and its solution](https://invisiblenetwork.ai/learn/nptel/112104026/f53f55042270) (Video)
6. [Solution for 1-D wave equation](https://invisiblenetwork.ai/learn/nptel/112104026/35b8a8fed2fe) (Video)
7. [Waveguides, transmission line equations, and standing waves](https://invisiblenetwork.ai/learn/nptel/112104026/f4db18800818) (Video)
8. [Waveguides,transmission line equations, and standing waves](https://invisiblenetwork.ai/learn/nptel/112104026/9947ea431140) (Video)
9. [Examples of 1-D waves in tubes, short tubes, Kundt's tube](https://invisiblenetwork.ai/learn/nptel/112104026/1bfa19811089) (Video)
10. [Thermodynamic processes during sound transmission](https://invisiblenetwork.ai/learn/nptel/112104026/c4f6f9282ebf) (Video)
11. [Numerical examples](https://invisiblenetwork.ai/learn/nptel/112104026/ba994a4645d9) (Video)
12. [Sound transmission through walls](https://invisiblenetwork.ai/learn/nptel/112104026/0d76fd95aa8a) (Video)
13. [Sound transmission through walls](https://invisiblenetwork.ai/learn/nptel/112104026/85c6f50570b4) (Video)
14. [Leakage in walls, STC Ratings, Octave bands](https://invisiblenetwork.ai/learn/nptel/112104026/4ae8f23e51e7) (Video)
15. [Instantaneous power flow](https://invisiblenetwork.ai/learn/nptel/112104026/eb89e7d8ec07) (Video)
16. [Radial propagation of sound, monopoles, and dipoles](https://invisiblenetwork.ai/learn/nptel/112104026/b84ca28670d4) (Video)
17. [Radial propagation of sound, monopoles, and dipoles](https://invisiblenetwork.ai/learn/nptel/112104026/dadfa5054f62) (Video)
18. [Radial propagation of sound, monopoles, and dipoles](https://invisiblenetwork.ai/learn/nptel/112104026/cd5a0927c60c) (Video)
19. [Numerical examples](https://invisiblenetwork.ai/learn/nptel/112104026/93c7bf193cd4) (Video)
20. [Numerical examples](https://invisiblenetwork.ai/learn/nptel/112104026/a67032e2d2d3) (Video)
21. [Directivity](https://invisiblenetwork.ai/learn/nptel/112104026/5debf31e4709) (Video)
22. [Directivity](https://invisiblenetwork.ai/learn/nptel/112104026/79a1cd9687b8) (Video)
23. [Directivity](https://invisiblenetwork.ai/learn/nptel/112104026/33ff656acba0) (Video)
24. [Directivity](https://invisiblenetwork.ai/learn/nptel/112104026/d4f8a1e7df4a) (Video)
25. [Generalized elements](https://invisiblenetwork.ai/learn/nptel/112104026/2858317be546) (Video)
26. [Examples of electromechanical systems](https://invisiblenetwork.ai/learn/nptel/112104026/e79fe0a1fe4b) (Video)
27. [Transformers, radiation impedance, and Helmholtz resonator](https://invisiblenetwork.ai/learn/nptel/112104026/4e5b2fe1cb4b) (Video)
28. [Radiation impedance](https://invisiblenetwork.ai/learn/nptel/112104026/52e15005af12) (Video)
29. [Radiation impedance](https://invisiblenetwork.ai/learn/nptel/112104026/74c5eb84c092) (Video)
30. [Models of electro-mechanical-acoustic systems](https://invisiblenetwork.ai/learn/nptel/112104026/8905ab4e569e) (Video)
31. [Solution for a loudspeaker model](https://invisiblenetwork.ai/learn/nptel/112104026/143576ca8473) (Video)
32. [Microphones](https://invisiblenetwork.ai/learn/nptel/112104026/5299d0994044) (Video)
33. [Vibro-meter, seismometer, accelerometer, shaker table](https://invisiblenetwork.ai/learn/nptel/112104026/2e7773d7f1a0) (Video)
34. [Sound propagation in rooms, 1-D rooms, 2D rooms](https://invisiblenetwork.ai/learn/nptel/112104026/7b72d0870cc5) (Video)
35. [Sound in 3-D rooms](https://invisiblenetwork.ai/learn/nptel/112104026/54f54665e08e) (Video)
36. [Absorption coefficient, and irregular rooms](https://invisiblenetwork.ai/learn/nptel/112104026/5e2d98e0e8d8) (Video)
37. [Room constant, and Sabine's coefficient](https://invisiblenetwork.ai/learn/nptel/112104026/edf04754115d) (Video)
38. [Design of a muffler](https://invisiblenetwork.ai/learn/nptel/112104026/b208c57df271) (Video)
39. [Noise in machines, basics of noise management](https://invisiblenetwork.ai/learn/nptel/112104026/a478a8c8f26f) (Video)