About this course: In this course students learn the basic concepts of acoustics and electronics and how they can applied to understand musical sound and make music with electronic instruments. Topics include: sound waves, musical sound, basic electronics, and applications of these basic principles in amplifiers and speaker design.
Created by: University of Rochester
Taught by: Robert Clark, Provost and Senior Vice President for Research and Professor
Mechanical Engineering
Taught by: Mark Bocko, Distinguished Professor and Chair
Electrical and Computer Engineering
| Commitment | 12 hours of lectures and assignments |
| Language | English |
| How To Pass | Pass all graded assignments to complete the course. |
| User Ratings |
Syllabus
WEEK 1
Week 1 - Introduction RC & Introduction to Electrical Circuits MB
Introduction to oscillations and sound waves, simple oscillating systems, sound pressure, sound waves, the speed of sound, wavelength, frequency and pitch, sound pressure level, loudness, making sound, properties of musical sound versus “noise”. Electronics fundamentals - charge, current, voltage, power, resistance, Ohm’s law, DC circuits, finding currents and voltages in simple circuits.
13 videos, 8 readings
- リーディング: About the Professors
- リーディング: About the Teaching Assistant
- リーディング: Syllabus
- リーディング: Grading and Logistics
- リーディング: Suggested Readings
- リーディング: Building the Amplifier and Ordering the Kit
- リーディング: Complex Number Proficiency Self-Assessment
- リーディング: General Overview
- Video: Oscillations in Space and Time
- Video: Time and Frequency Domain Representations of Sound
- Video: Auditory Perception and Sound Localization
- Video: Acoustic Resonance: Helmholtz Resonators
- Video: Acoustic Resonance: Loudspeakers
- Video: Electrical Charge and Current
- Video: Electric Fields and Electric Potential
- Video: Electrical Circuits: Kirchoff's Voltage Law
- Video: Electrical Circuits: Voltage Dividers
- Video: Volume Control and Loudness Perception
- Video: Electrical Circuits: Kirchoff's Current Law
- Video: Electrical Circuits: Nodal Analysis
WEEK 2
Week 2 - Acoustic Resonance RC & Electrical Circuits MB
Reflection and absorption of sound, resonances in air columns, resonances in enclosures and rooms, diffraction and diffusion of sound, reverberation, principles of designing a good music studio. AC signals, phase and complex numbers, capacitors, inductors, transformers, impedance, AC circuits and AC circuit analysis, simple filters (high-pass, low-pass, band-pass)
13 videos
- Video: Effects of String Parameters on Resonant Modes
- Video: Resonant Modes in a Room
- Video: Resonant Modes in a Duct
- Video: Reverberation and Room Acoustics
- Video: Power and Energy
- Video: Power and Energy Dissipation in Circuits
- Video: Real Voltage and Current Sources
- Video: Impedence Matching Derivation
- Video: Ideal and Real Current Sources
- Video: Operational Amplifiers
- Video: Using the OP AMP as a voltage follower
- Video: Inverting OP AMP Configuration
Graded: Test for Weeks 1 and 2
WEEK 3
Week 3 - Some Necessary Mathematics MB & AC Circuit Analysis
Transistors, vacuum tubes, opamps, amplification, power gain, single-stage amplifiers.
Converting sound to electrical signals –microphones and guitar pickups, converting electrical signals to sound – loudspeakers
18 videos
- Video: Mathematics: Sample Derivatives and Rules?
- Video: The Number e; Derivatives of sin and cos
- Video: Simple Harmonic Oscillator
- Video: Complex Numbers and Arithmetic
- Video: Complex Exponentials and Eulers Formula
- Video: Phasors
- Video: Capacitors
- Video: Transient Analysis of an RC Circuit
- Video: Frequency Response of an RC Circuit
- Video: Inductors
- Video: Transient Response of an RL Circuit
- Video: RL Lowpass and Highpass Circuits
- Video: Phasors in AC Circuit Analysis
- Video: Generalized Impedance
- Video: Circuit Analysis Example
- Video: Impedance Analysis of RL Circuit
- Video: Filters as Frequency Dependant Voltage Dividers
WEEK 4
Week 4 - AC Signals & Loudspeakers and Radiation RC
Electric guitar electronics, pickup design, pickup placement and tone, volume control circuits, tone control circuits. Overview of a simple guitar amplifier, power supply, volume control, preamp, tone control, power amp section.
15 videos
- Video: Fourier Series of a Triangle Wave
- Video: Overtone Spectrums and Fourier Series
- Video: Graphical Interpretation of Fourier Series Integrals
- Video: Spectral Analysis
- Video: Spectral Analysis Examples
- Video: Filters applied to Frequency spectra
- Video: Construction of a Guitar Pickup
- Video: Electrical Model of a Guitar Pickup
- Video: Guitar Pickup Analysis Continued (wr Q)
- Video: Frequency Response of a Guitar Pickup
- Video: Loudspeaker Radiation and Directionality
- Video: Loudspeaker Radiation, Continued
- Video: Electromechanical Model of a Loudspeaker
- Video: Loudspeaker and Transducer Parameters
Graded: Test for Weeks 3 and 4
WEEK 5
Week 5 - Closed Box Loudspeaker Design RC & Ported Loudspeaker Design
Designing speaker enclosures, basic principles, interaction of speaker driver with the cabinet, why a cabinet at all? Speaker designs for home stereo, crossover networks, guitar amplifier (open) speaker enclosures, bass amplifier (closed and vented) speaker enclosures.
8 videos
- Video: Closed Box Design
- Video: Design Tools and Conclusions
- Video: Model of a Ported Loudspeaker
- Video: Design of Loudspeaker Port
- Video: Design Tradeoffs
- Video: Port Design Parameters
- Video: Comparison of Closed Box and Ported Designs
WEEK 6
Week 6 - Guitar Pickup and Effects Analysis MB & Design and Construction of a Guitar Amplifier MB
Building the guitar amplifier, how to solder, getting the amp to work - systematic testing and troubleshooting. Visualizing sound waves, frequency content and tone, signal modification in electro-acoustic systems, tube amplifiers and distortion, wah pedal, talk box.
14 videos
- Video: Tone Control and Pickup Analysis
- Video: Tone Control and Pickup Analysis, Continued
- Video: RLC Bandpass Filters
- Video: Graphic Equalizers and Octave Filter Banks
- Video: Graphic Equalizer Simulation
- Video: Wah Pedal Circuit Analysis
- Video: Wah Pedal Circuit Analysis, Continued
- Video: Design Overview and Tone Control Analysis
- Video: Tone Control Analysis Continued
- Video: Distortion Stage Analysis
- Video: Distortion Stage Analysis, Continued
- Video: Cabinet Design for the Guitar Amplifier
- Video: Practical Considerations in Constructing the Amplifier
Graded: Final Exam
FAQs
How It Works
コースワーク
各コースは、インタラクティブな教科書のようなもので、事前に作成された動画、テスト、プロジェクトが備わっています。
他の受講生からの支援
他の数千もの受講生とつながり、アイデアやコース教材について検討し、 コンセプトの理解を深めます。
修了証
仕事に関する公式な認定を取得して、達成したことを友人、同僚、雇用主と共有してください。
Creators
University of Rochester
The University of Rochester is one of the nation's leading private universities. Located in Rochester, N.Y., the University provides exceptional opportunities for interdisciplinary study and close collaboration with faculty through its unique cluster-based curriculum. Its College, School of Arts and Sciences, and Hajim School of Engineering and Applied Sciences are complemented by its Eastman School of Music, Simon School of Business, Warner School of Education, Laboratory for Laser Energetics, School of Medicine and Dentistry, School of Nursing, Eastman Institute for Oral Health, and the Memorial Art Gallery.
Ratings and Reviews
Great teachers to get all the information you need to be an expert
good course
It's not perfect, (I'm not really sure how you could sexy up some of the math that you must know for the theory portion of the course) but it is an excellent, and free, course for people who are interested in, or need a refresher in analogue electronics.
If you've any doubt about your math and physics background, I'd STRONGLY recommend going through the Electrical Engineering pages on Khan Academy, and knowing those formulas cold before starting in on this course.
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LJ
great