Acoustics

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6 STUDENTS

Introduction, review of concepts, terminology – Wave equation (1-D, 3D, spherical 1D) and its solutions – Transmission line equations, waveguides, 1D plane waves, interferences – Distributed parameters, illustrations, PSWR, simple source arrays, energy flow, power, intensity, attenuation thru mass, spatial damping – Generalized elements, laws on interconnect, electrical, mechanical and acoustic elements – Applications – electrodynamic transducers, and microphones – Applications – room acoustics – Other applications and closure

Course Curriculum

Intro, sound wave versus vibration, different types of waves, octave Details 59:57
1-D wave equation, and its solution Details 44:17
Sound transmission through walls Details 46:48
Instantaneous power flow Details 48:34
Directivity Details 37:21
Review: Linearity, complex numbers, and spring mass system Details 58:25
Radial propagation of sound, monopoles, and dipoles Details 37:59
Radial propagation of sound, monopoles, and dipoles Details 33:56
Directivity Details 33:56
Examples of electromechanical systems Details 1:2:59
Sound in 3-D rooms Details 45:49
Review: Poles and zeroes, phase and magnitude plots Details 1:8:58
Waveguides, transmission line equations, and standing waves Details 40:54
Leakage in walls, STC Ratings, Octave bands Details 52:7
Radial propagation of sound, monopoles, and dipoles Details 37:22
Transformers, radiation impedance, and Helmholtz resonator Details 1:8:33
Absorption coefficient, and irregular rooms Details 58:36
Review: Transfer functions, and Bode plots Details 1:2:46
Waveguides,transmission line equations, and standing waves Details 43:32
Radial propagation of sound, monopoles, and dipoles Details 36:53
Directivity Details 58:8
Radiation impedance Details 35:16
Room constant, and Sabine’s coefficient Details 52:28
Examples of 1-D waves in tubes, short tubes, Kundt’s tube Details 1:12:19
Numerical examples Details 37:42
Radiation impedance Details 37:30
Design of a muffler Details 55:30
Thermodynamic processes during sound transmission Details 42:1
Numerical examples Details 33:34
Models of electro-mechanical-acoustic systems Details 57:45
Noise in machines, basics of noise management Details 1:5:3
Numerical examples Details 39:35
Solution for a loudspeaker model Details 58:55
Microphones Details 1:1:17
Vibro-meter, seismometer, accelerometer, shaker table Details 57:11

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