Lecture 2 of 39Concept Review
Review: Linearity, complex numbers, and spring mass system
Prof. Nachiketa Tiwari · IIT Kanpur
Credits and licence
- From
- Acoustics, IIT Kanpur (at NPTEL)
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only.
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
- Who can watch
- Tweens profiles and older. How courses are placed
All the lectures
- Intro, sound wave versus vibration, different types of waves, octave, music scales, sense of SPL
- Review: Linearity, complex numbers, and spring mass system
- Review: Poles and zeroes, phase and magnitude plots, transfer functions, Bode plots
- Review: Transfer functions, and Bode plots
- 1-D wave equation, and its solution
- Solution for 1-D wave equation
- Waveguides, transmission line equations, and standing waves
- Waveguides,transmission line equations, and standing waves
- Examples of 1-D waves in tubes, short tubes, Kundt's tube
- Thermodynamic processes during sound transmission
- Numerical examples
- Sound transmission through walls
- Sound transmission through walls
- Leakage in walls, STC Ratings, Octave bands
- Instantaneous power flow
- Radial propagation of sound, monopoles, and dipoles
- Radial propagation of sound, monopoles, and dipoles
- Radial propagation of sound, monopoles, and dipoles
- Numerical examples
- Numerical examples
- Directivity
- Directivity
- Directivity
- Directivity
- Generalized elements
- Examples of electromechanical systems
- Transformers, radiation impedance, and Helmholtz resonator
- Radiation impedance
- Radiation impedance
- Models of electro-mechanical-acoustic systems
- Solution for a loudspeaker model
- Microphones
- Vibro-meter, seismometer, accelerometer, shaker table
- Sound propagation in rooms, 1-D rooms, 2D rooms
- Sound in 3-D rooms
- Absorption coefficient, and irregular rooms
- Room constant, and Sabine's coefficient
- Design of a muffler
- Noise in machines, basics of noise management