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Yang-Hann Kim

This course introduces acoustics by using the concept of impedance. The course starts with vibrations and waves, demonstrating how vibration can be envisaged as a kind of wave, mathematically and physically. They are realized by one-dimensional examples, which provide mathematically simplest but clear enough physical insights. Then the part 1 ends with explaining waves on a flat surface of discontinuity, demonstrating how propagation characteristics of waves change in space where there is a distributed impedance mismatch.

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What's inside

Syllabus

Introduction
The description goes here
Vibration and Waves
You will going to learn basic concepts of vibration and waves for this week. From the vibration of string, you will be able to derive one dimensional wave equation. Then it will be explained with the concept of 'Impedance.'
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Acoustic Wave Equation
Earlier part of this week, you will learn three fundamental physical measures that explain one dimensional wave equation. After that, you will briefly learn about basic concepts of acoustic intensity and energy.
Acoustic Wave Equation and its Basic Physical Measures
On this week, you will learn deeply into acoustic intensity and energy. Then you will get the concept of units of sound, or dB scale with listening to various sound. At the end, you will be able to derive the solutions of the wave equation.
Waves on a Flat Surface of Discontinuity 1
You will now learn when the waves meet on a flat surface of discontinuity. It will be explained with the mass law of wave phenomena.
Waves on a Flat Surface of Discontinuity 2
You will going to learn more about the waves on a discontinuity. With the Snell's Law, you will be able to find out the wave propagation after transmission and reflection on discontinuity.

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Explores the concept of 'impedance,' which is standard in acoustics
Builds a strong foundation for beginners in acoustics
Teaches acoustic intensity and energy, which are highly relevant in the field
Covers unique perspectives on waves on a flat surface of discontinuity
Uses the concept of waves to explain vibration
Requires explicit background knowledge in vibration and waves

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Reviews summary

Strong acoustics introduction

Learners say this well-received introductory acoustics course is very informative. Led by a knowledgeable instructor, learners appreciate the practical applications and demonstrations. Even though the exams can be tricky, learners have largely positive feedback for the quizzes, videos, real-time discussions, and explanations.
The instructor is knowledgeable in the subject matter.
"The instructor himself has profound knowledge regarding waves & also in whistling :)"
Learners appreciate the quizzes for testing their understanding well.
"The quizzes do a good job testing your understanding of concepts."
This course is grounded in practical applications of acoustics.
"The demonstrations between the lectures and examples are top level."
"Great course! It was well presented by the instructor in terms of developing concepts and mathematics, relating them to the real world, and then using simple, but effective, experiments to demonstrate concepts."
Many learners find this course to be very educational.
"Very informative."
"Very informative and useful."
"I am amazed by the depth of content covered in the course."
Be prepared for the exams to potentially be challenging.
"learnt alot just questions were bit tricky"
The lack of a provided textbook and lecture notes is notable.
"provide the textbook!"
"Negatives are that you are not provided the powerpoint used in the lecture or additional lecture notes that could be printed for future reference."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Intro to Acoustics (Part 1) with these activities:
Fundamentals of Acoustics
Review a foundational book on acoustics to solidify your understanding of core concepts.
Show steps
  • Read and summarize key chapters.
  • Solve practice problems and review chapter exercises.
  • Discuss the book's concepts with a study partner or online forum.
Basic Wave Mathematics and Calculations
Practice with basic wave mathematics and calculations to strengthen your foundation.
Browse courses on Wave Equation
Show steps
  • Derive the one-dimensional wave equation.
  • Calculate wave velocity, wavelength, and frequency.
  • Solve wave equations for different scenarios.
Group Discussion on Wave Interference and Diffraction
Engage with peers to discuss and analyze wave interference and diffraction, fostering collaborative learning and critical thinking.
Show steps
  • Present different types of wave interference and diffraction.
  • Explain the underlying principles and mathematical equations.
  • Discuss applications and real-life examples.
Five other activities
Expand to see all activities and additional details
Show all eight activities
Interactive Simulations of Wave Phenomena
Engage with interactive simulations to visualize and explore wave phenomena in diverse scenarios.
Show steps
  • Simulate wave propagation, reflection, and transmission.
  • Analyze the effects of different boundary conditions and material properties.
  • Apply impedance concepts to predict wave behavior.
Data Visualization of Wave Propagation Patterns
Use data visualization tools to create engaging presentations of wave propagation patterns, reinforcing your knowledge and developing your data analysis skills.
Show steps
  • Collect data on wave propagation patterns.
  • Choose appropriate data visualization techniques.
  • Create interactive or static visualizations.
  • Present your visualizations and discuss their implications.
Presentation on Acoustic Intensity and Energy
Develop a comprehensive presentation to showcase your understanding of acoustic intensity and energy, enabling you to consolidate and communicate your knowledge effectively.
Show steps
  • Summarize the concepts of acoustic intensity and energy.
  • Explain the units of sound and the dB scale.
  • Derive the solutions of the wave equation.
  • Prepare visual aids and examples to enhance your presentation.
Annotated Bibliography on Acoustic Impedance
Compile and annotate a list of research articles and resources on acoustic impedance, deepening your understanding of the topic.
Browse courses on Impedance
Show steps
  • Conduct a comprehensive literature search.
  • Select and read relevant research articles.
  • Summarize and annotate each article.
  • Organize the bibliography using a citation management tool.
Hands-on Workshop: Acoustic Measurements and Analysis
Participate in a hands-on workshop led by experts to gain practical experience in acoustic measurements and analysis techniques.
Show steps
  • Attend the workshop and actively participate in exercises.
  • Collect and analyze acoustic data using specialized equipment.
  • Interpret results and draw conclusions based on experimental data.

Career center

Learners who complete Intro to Acoustics (Part 1) will develop knowledge and skills that may be useful to these careers:
Acoustical Engineer
Imagine developing and designing solutions to control noise and vibration in various settings. As an Acoustical Engineer, you'll apply principles of acoustics, often utilizing knowledge of vibration and wave phenomena. This course delves into the mathematical and physical aspects of vibration and waves, which will provide a solid foundation for understanding acoustics and its applications in noise and vibration control.
Audio Engineer
An Audio Engineer's work involves capturing, recording, mixing, and reproducing sound. You'll need to understand acoustics to excel in this role since it directly relates to sound waves and their propagation. This course introduces concepts like the acoustic wave equation, intensity, and energy, providing valuable knowledge for manipulating and managing sound in your audio engineering projects.
Architectural Designer
As an Architectural Designer, you'll be involved in creating building designs that consider acoustics to enhance the occupant experience. This course can be beneficial as it covers concepts related to waves on a discontinuity, which is crucial for understanding how sound interacts with different building materials and structures.
Noise Control Engineer
Noise Control Engineers play a vital role in managing and reducing noise pollution in various settings. Understanding the principles of acoustics is crucial for this role, and this course provides a strong foundation. You'll gain insights into vibration and wave phenomena, as well as acoustic wave equations and their applications in noise control.
Music Producer
Music Producers combine technical expertise with creativity to produce and record music. This course introduces the fundamentals of acoustics, including vibration, waves, and acoustic wave equations. Understanding these concepts will enhance your ability to manipulate and shape sound in the context of music production.
Sound Designer
Sound Designers are responsible for creating and manipulating sound effects and atmospheres in various media, including film, television, and video games. This course provides knowledge of acoustic wave equations, intensity, and energy, which are essential for understanding how sound propagates and interacts with different environments.
Acoustics Consultant
Acoustics Consultants provide expertise in managing and controlling noise and vibration in various settings. This course offers a comprehensive introduction to acoustics, covering vibration and waves, acoustic wave equations, and more. The knowledge gained can support your work as an Acoustics Consultant in assessing and resolving acoustic issues.
Audiologist
Audiologists diagnose and treat hearing and balance disorders, often utilizing principles of acoustics. This course explores concepts like vibration, waves, and acoustic wave equations, providing a valuable foundation for understanding sound and its impact on the auditory system.
Mechanical Engineer
Mechanical Engineers design and develop a wide range of machines and systems. While acoustics may not be their primary focus, understanding vibration and wave phenomena can be beneficial for certain aspects of mechanical engineering, particularly in the analysis and design of systems involving vibration and sound.
Architectural Technologist
Architectural Technologists assist architects in designing and developing building plans. Acoustics plays a role in creating comfortable and functional buildings. This course introduces the basics of acoustics, providing insights into vibration, waves, and acoustic wave equations, which can be valuable for understanding how sound interacts with buildings.
Building Inspector
Building Inspectors ensure that buildings meet construction codes and regulations, including those related to acoustics. This course provides a foundational understanding of acoustics, covering concepts like vibration, waves, and acoustic wave equations. This knowledge can support you in evaluating acoustic aspects of buildings during inspections.
Civil Engineer
Civil Engineers design and manage the construction and maintenance of infrastructure projects, some of which involve acoustic considerations. This course offers an introduction to acoustics, including vibration, waves, and acoustic wave equations. The knowledge gained can enhance your understanding of acoustic principles as applied in civil engineering projects.
Construction Manager
Construction Managers oversee the planning, execution, and completion of construction projects. While acoustics may not be their primary focus, an understanding of how sound interacts with buildings can be beneficial. This course introduces concepts like vibration, waves, and acoustic wave equations, providing insights into acoustic considerations during construction.
Environmental Engineer
Environmental Engineers address environmental issues, including noise pollution. This course offers an overview of acoustics, covering vibration, waves, and acoustic wave equations. The knowledge gained can contribute to your understanding of noise propagation and control in environmental engineering.
Health and Safety Manager
Health and Safety Managers ensure that workplaces meet health and safety regulations, including those related to noise exposure. This course introduces the basics of acoustics, covering concepts like vibration, waves, and acoustic wave equations. The knowledge gained can support your understanding of acoustic hazards in workplace environments.

Reading list

We've selected eight books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Intro to Acoustics (Part 1).
This classic textbook has been used by generations of students to learn the fundamentals of acoustics. It provides a clear and concise introduction to the field, covering topics such as wave propagation, sound sources, and acoustic measurements.
This textbook provides a comprehensive overview of the field of vibrations and waves. It valuable resource for students who want to learn more about the mathematical and physical foundations of acoustics.
This textbook provides a comprehensive overview of the field of acoustics, with a focus on sound fields and transducers. It valuable resource for students who want to learn more about the design and application of acoustic systems.
This textbook provides a comprehensive overview of the field of acoustics, with a focus on applications. It valuable resource for students who want to learn more about the design and application of acoustic systems.
This textbook provides a comprehensive overview of the field of acoustics, with a focus on its physical principles and applications. It valuable resource for students who want to learn more about the design and application of acoustic systems.
This textbook provides a comprehensive overview of the field of acoustic absorbers and diffusers. It valuable resource for students who want to learn more about the design and application of acoustic systems.
This textbook provides a comprehensive overview of the field of architectural acoustics. It valuable resource for students who want to learn more about the design and application of acoustic systems in buildings.

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