Intro to Acoustics (Part 1)

Ends in 5 days! Save 40% on your access to 10,000+ programs and make a real impact in your career. Save now.

Korea Advanced Institute of Science and Technology(KAIST)

Intro to Acoustics (Part 1)

Instructor: Yang-Hann Kim

18,292 already enrolled

Included with Learn more

6 modules

Gain insight into a topic and learn the fundamentals.

144 reviews

Intermediate level

Some related experience required

1 week to complete

at 10 hours a week

6 modules

Gain insight into a topic and learn the fundamentals.

144 reviews

Intermediate level

Some related experience required

1 week to complete

at 10 hours a week

Skills you'll gain

Details to know

Shareable certificate

Add to your LinkedIn profile

Assessments

6 assignments

Taught in English

Flexible schedule

Learn at your own pace

See how employees at top companies are mastering in-demand skills

Learn more about Coursera for Business

logos of Petrobras, TATA, Danone, Capgemini, P&G and L'Oreal

There are 6 modules in this course

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.

The description goes here

What's included

1 video

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.'

What's included

8 videos1 assignment

8 videosTotal 128 minutes

Week 1: Introduction2 minutes
Lecture 1-1 Part 1. String Vibration 19 minutes
Lecture 1-1 Part 2. One Dimensional Wave Equation 26 minutes
Lecture 1-2 Part 1. Specific Impedance 21 minutes
Lecture 1-2 Part 2. The Governing Equation of a String 17 minutes
Lecture 1-2 Part 3. Driving Point Impedance 21 minutes
Lecture 1-3 Use of Complex Function 18 minutes
Week 1 Summary Video3 minutes

1 assignmentTotal 30 minutes

Quiz for Week 1 (Vibration & Waves)30 minutes

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.

What's included

8 videos2 assignments

8 videosTotal 132 minutes

Week 2: Introduction 2 minutes
Lecture 2-1 Part 1. 1-Dimensional Wave Equation 1 20 minutes
Lecture 2-1 Part 2. 1-Dimensional Wave Equation 2 16 minutes
Lecture 2-1 Part 3. 1-Dimensional Wave Equation 3 27 minutes
Week 2 Summary Video4 minutes
Lecture 2-2 Part 1. Acoustic Intensity & Energy 116 minutes
Lecture 2-2 Part 2. Acoustic Intensity & Energy 214 minutes
Lecture 2-2 Part 3. Units of Sound (dB Scale) 34 minutes

2 assignmentsTotal 60 minutes

Quiz for Week 2-1 (Wave Equation)30 minutes
Quiz for Week 2-2 (Basic Measurement)30 minutes

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.

What's included

8 videos1 assignment

8 videosTotal 129 minutes

Week 3: Introduction 1 minute
Lecture 3-1 Part 1. Acoustic Intensity & Energy 136 minutes
Lecture 3-1 Part 2. Acoustic Intensity & Energy 214 minutes
Lecture 3-1 Part 3. The Units of Sound 16 minutes
Lecture 3-2 Part 1. Review: Intensity & Units 12 minutes
Lecture 3-2 Part 2. Listening Demonstration 28 minutes
Lecture 3-2 Part 3. Solutions of the Wave Equation 20 minutes
Week 3 Summary Video2 minutes

1 assignmentTotal 14 minutes

Quiz for Week 3 (Wave Equation & Basic Measures)14 minutes

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.

What's included

8 videos1 assignment

8 videosTotal 126 minutes

Week 4: Introduction 3 minutes
Lecture 4-1 Part 1. Normal Incidence on a Flat Surface of Discontinuity 1 22 minutes
Lecture 4-1 Part 2. Normal Incidence on a Flat Surface of Discontinuity 2 22 minutes
Lecture 4-1 Part 3. The Mass Law 1 15 minutes
Lecture 4-2 Part 1. Review: Normal Incidence on a Flat Surface of Discontinuity 16 minutes
Lecture 4-2 Part 2. The Mass Law 2 29 minutes
Lecture 4-2 Part 3. The Mass Law 3 (demonstration) 16 minutes
Week 4 Summary Video3 minutes

1 assignmentTotal 30 minutes

Quiz for Week 4 (Waves on a Flat Surface of Discontinuity)30 minutes

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.

What's included

8 videos1 assignment

8 videosTotal 131 minutes

Week 5: Introduction 2 minutes
Lecture 5-1 Part 1. Review: The Mass Law 30 minutes
Lecture 5-1 Part 2. Transmission Loss at a Partition 17 minutes
Lecture 5-1 Part 3. Snell's Law 1 15 minutes
Lecture 5-2 Part 1. Snell's Law 2 22 minutes
Lecture 5-2 Part 2. Transmission and Reflection of an Infinite Plate 29 minutes
Lecture 5-2 Part 3. Transmission and Reflection of a Finite Structure 14 minutes
Week 5 Summary Video3 minutes

1 assignmentTotal 30 minutes

Final Exam30 minutes

Instructor

Instructor ratings

(43 ratings)

Yang-Hann Kim

Korea Advanced Institute of Science and Technology(KAIST)

4 Courses39,963 learners

Offered by

Korea Advanced Institute of Science and Technology(KAIST)

Explore more from Mechanical Engineering

Korea Advanced Institute of Science and Technology(KAIST)
Introduction to Acoustics (Part 2)
Course
Status: Preview
University of Rochester
Fundamentals of Audio and Music Engineering: Part 1 Musical Sound & Electronics
Course
Status: Free Trial
Rice University
Physics of Oscillators and Waves
Course
Status: Preview
École Polytechnique
Fundamentals of waves and vibrations
Course

Why people choose Coursera for their career

Felipe M.

Learner since 2018

"To be able to take courses at my own pace and rhythm has been an amazing experience. I can learn whenever it fits my schedule and mood."

Jennifer J.

Learner since 2020

"I directly applied the concepts and skills I learned from my courses to an exciting new project at work."

Larry W.

Learner since 2021

"When I need courses on topics that my university doesn't offer, Coursera is one of the best places to go."

Chaitanya A.

"Learning isn't just about being better at your job: it's so much more than that. Coursera allows me to learn without limits."

Learner reviews

5 stars
70.13%
4 stars
18.75%
3 stars
4.86%
2 stars
2.08%
1 star
4.16%

Showing 3 of 144

Reviewed on Oct 25, 2023

The PowerPoint part should be ignored as it makes it difficult to focus on the content. The instructor himself has profound knowledge regarding waves & also in whistling :) God Bless You

Reviewed on Mar 15, 2021

It is a very good course to introduce the basics of acoustics starting from one-dimensional cases to general 3D environments.

Reviewed on Jun 9, 2020

Very useful and explaning with real time discussions,Thank you sir

View more reviews

Frequently asked questions

To access the course materials, assignments and to earn a Certificate, you will need to purchase the Certificate experience when you enroll in a course. You can try a Free Trial instead, or apply for Financial Aid. The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.

When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.

Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.