ECE Course Outline
Audio Engineering (3-0-3)
- ECE 3040 [min C]
- Catalog Description
- Concepts of acoustics and electroacoustic modeling for the analysis and design of microphones, loudspeakers, and crossover networks. Methods of analysis and design of audio power amplifiers.
- Leach, Introduction to Electroacoustics and Audio Power Amplifier Design (4th edition), Kendall/Hunt, 2012. ISBN 0757572863, ISBN 9780757572869 (required)
- Topical Outline
Basic Principles Introductory concepts and definitions Fundamentals of Acoustics An introduction to the fundamentals of acoustics. Pressure, particle velocity, volume velocity, intensity, diffraction, reflection. Plane wave and spherical solutions to the wave equation. Electro Acoustical Analogous Circuits Development of analogous circuits for acoustic sources and elements. Plane wave tubes, acoustic resistance, acoustic mass, and acoustic compliance. Analogous circuits for radiation impedances. Electro Mechanical Analogous Circuits Development of analogous circuits for mechanical sources and elements. Mobility and impedance analogs. Transducer analogous circuits. Microphones Microphone classifications, analogous circuits, pressure microphones, pressure gradient microphones, combination microphones, SPICE simulations of microphones, promximity effect. Moving Coil Loudspeaker Drivers Direct radiator loudspeaker driver construction and modeling. Analogous circuit, pressure response, radiated power, small-signal parameters. SPICE simulations. Loudspeaker Driver Parameter Measurements Methods for the measurement of small-signal loudspeaker parameters. Closed Box Loudspeaker Systems The analysis and design of closed-box direct-radiator loudspeaker systems. SPICE simulations. Vented Box Loudspeaker Systems The analaysis and design of vented-box direct-radiator loudspeaker systems. Applications of network synthesis to vented-box design. SPICE simulations. Crossover Networks Analysis and design of passive and active loudspeaker crossover networks. Effects of loudspeaker phase response on crossover network design. SPICE simulations. Acoustic Horns Solutions to the Webster horn equation. Exponential, conical, parabolic, and hyperbolic horns. Analogous circuits for horns and horn driving units. Frequency response. Audio Power Amplifiers Concepts of feedback amplifier design. Stability, frequency compensation, circuit topologies, gain-bandwidth and slew-rate relationship, power supply decoupling and grounding, protection circuits.
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