Acoustics


Lecture 1 - Intro, sound wave versus vibration, different types of waves, octave, music scales, sense of SPL


Lecture 2 - Review: Linearity, complex numbers, and spring mass system


Lecture 3 - Review: Poles and zeroes, phase and magnitude plots, transfer functions, Bode plots


Lecture 4 - Review: Transfer functions, and Bode plots


Lecture 5 - 1-D wave equation, and its solution


Lecture 6 - Solution for 1-D wave equation


Lecture 7 - Waveguides, transmission line equations, and standing waves


Lecture 8 - Waveguides, transmission line equations, and standing waves


Lecture 9 - Examples of 1-D waves in tubes, short tubes, Kundt's tube


Lecture 10 - Thermodynamic processes during sound transmission


Lecture 11 - Numerical examples


Lecture 12 - Sound transmission through walls


Lecture 13 - Sound transmission through walls


Lecture 14 - Leakage in walls, STC Ratings, Octave bands


Lecture 15 - Instantaneous power flow


Lecture 16 - Radial propagation of sound, monopoles, and dipoles


Lecture 17 - Radial propagation of sound, monopoles, and dipoles


Lecture 18 - Radial propagation of sound, monopoles, and dipoles


Lecture 19 - Numerical examples


Lecture 20 - Numerical examples


Lecture 21 - Directivity


Lecture 22 - Directivity


Lecture 23 - Directivity


Lecture 24 - Directivity


Lecture 25 - Generalized elements


Lecture 26 - Examples of electromechanical systems


Lecture 27 - Transformers, radiation impedance, and Helmholtz resonator


Lecture 28 - Radiation impedance


Lecture 29 - Radiation impedance


Lecture 30 - Models of electro-mechanical-acoustic systems


Lecture 31 - Solution for a loudspeaker model


Lecture 32 - Microphones


Lecture 33 - Vibro-meter, seismometer, accelerometer, shaker table


Lecture 34 - Sound propagation in rooms, 1-D rooms, 2D rooms


Lecture 35 - Sound in 3-D rooms


Lecture 36 - Absorption coefficient, and irregular rooms


Lecture 37 - Room constant, and Sabine's coefficient


Lecture 38 - Design of a muffler


Lecture 39 - Noise in machines, basics of noise management