code EC522 credit_hours 3 title Acoustics arbic title prequisites EC341 credit hours 3 Description/Outcomes Selected topics in room and underwater acoustics. arabic Description/Outcomes objectives Describe the nature of the acoustic wave equation and its solutions. Define the acoustic power and energy. Define the sound levels. Describe the environmental acoustics. Define the Electro-acoustic transducers. Describe the underwater acoustics. arabic objectives ref. books Frey Kensiler, "Fundamentals of acoustics". arabic ref. books textbook B. Forouzan, Data Communications Networking. 3rd ed. New York: McGraw-Hill, 2004. arabic textbook objective set bullets content set bullets
Course Content
content serial Description
1 Acoustic wave and velocity of sound: Velocity of sound in air and water and metal.
2 The one-dimensional wave equation / Impedance of mediums: The one- dimensional wave equation Condensation.
3 Solution of the one dimensional wave equation: The general solution of the one dimensional wave equation Definition of impedance?s. Freely traveling plane wave.
4 Solution of the one dimensional wave equation: The general solution of the one dimensional wave equation Definition of impedance?s. Freely traveling plane wave.
5 Sound intensity and power, Impedance of the freely traveling spherical wave, Intensity, power, energy density, levels and loudness.
6 Energy density and levels: Acoustic power and directivity, Energy density.
7 Multiple sources and levels (power, intensity), Multiple sources, Loudness + 7th Week Exam
8 Environmental acoustics: Environmental acoustics; weighted SPL.
9 Equivalent SPL and assessment of noise: Combination of levels, Assessment of noise, Leq , Ld , Ln , Ldn.
10 Analogy between mechanical and electrical circuits: Introduction, Mechanical circuit elements, Analogy between mechanical and electrical circuits.
11 Analogy between mechanical and electrical circuits: Velocity of sound in air and water and metal, Analogy between acoustical and electrical circuits.
12 Acoustical resonators and filters: Acoustical resonator and filters, Transducer +12th Week Exam
13 Transducers and sensitivity of microphones and Loudspeakers: Sensitivity and types of mics, Efficiency and types of Loudspeakers, hi-fi multispeaker system.
14 Hi-fi system and underwater acoustics: Introduction to underwater acoustics, Velocity of sound in seawater, Sound transmission loss in seawater.
15 Velocity profile and SONAR: Thermocline and velocity profiles, Refraction of sound in seawater, SONAR.
16 Final Examination