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.
提供：
Intro to Acoustics (Part 1)
Korea Advanced Institute of Science and Technology(KAIST)
このコースについて
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受講生の就業成果
33%
コースが具体的なキャリアアップにつながった
受講生の就業成果
33%
コースが具体的なキャリアアップにつながった
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中級レベル
約17時間で修了
推奨：3 hours / week
英語
字幕：英語
シラバス - 本コースの学習内容
2時間で修了
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.'
2時間で修了
8件のビデオ （合計128分）
8件のビデオ
Lecture 1-1 Part 1. String Vibration 19 分
Lecture 1-1 Part 2. One Dimensional Wave Equation 25 分
Lecture 1-2 Part 1. Specific Impedance 20 分
Lecture 1-2 Part 2. The Governing Equation of a String 17 分
Lecture 1-2 Part 3. Driving Point Impedance 21 分
Lecture 1-3 Use of Complex Function 17 分
Week 1 Summary Video3 分
1の練習問題
Quiz for Week 1 (Vibration & Waves)12 分
2時間で修了
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.
2時間で修了
8件のビデオ （合計132分）
8件のビデオ
Lecture 2-1 Part 1. 1-Dimensional Wave Equation 1 19 分
Lecture 2-1 Part 2. 1-Dimensional Wave Equation 2 16 分
Lecture 2-1 Part 3. 1-Dimensional Wave Equation 3 26 分
Week 2 Summary Video3 分
Lecture 2-2 Part 1. Acoustic Intensity & Energy 116 分
Lecture 2-2 Part 2. Acoustic Intensity & Energy 213 分
Lecture 2-2 Part 3. Units of Sound (dB Scale) 33 分
2の練習問題
Quiz for Week 2-1 (Wave Equation)6 分
Quiz for Week 2-2 (Basic Measurement)6 分
2時間で修了
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.
2時間で修了
8件のビデオ （合計129分）
8件のビデオ
Lecture 3-1 Part 1. Acoustic Intensity & Energy 135 分
Lecture 3-1 Part 2. Acoustic Intensity & Energy 214 分
Lecture 3-1 Part 3. The Units of Sound 15 分
Lecture 3-2 Part 1. Review: Intensity & Units 11 分
Lecture 3-2 Part 2. Listening Demonstration 27 分
Lecture 3-2 Part 3. Solutions of the Wave Equation 19 分
Week 3 Summary Video2 分
1の練習問題
Quiz for Week 3 (Wave Equation & Basic Measures)14 分
2時間で修了
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.
2時間で修了
8件のビデオ （合計126分）
8件のビデオ
Lecture 4-1 Part 1. Normal Incidence on a Flat Surface of Discontinuity 1 22 分
Lecture 4-1 Part 2. Normal Incidence on a Flat Surface of Discontinuity 2 22 分
Lecture 4-1 Part 3. The Mass Law 1 14 分
Lecture 4-2 Part 1. Review: Normal Incidence on a Flat Surface of Discontinuity 15 分
Lecture 4-2 Part 2. The Mass Law 2 29 分
Lecture 4-2 Part 3. The Mass Law 3 (demonstration) 15 分
Week 4 Summary Video3 分
1の練習問題
Quiz for Week 4 (Waves on a Flat Surface of Discontinuity)14 分
レビュー
4.4
INTRO TO ACOUSTICS (PART 1) からの人気レビュー
SMによりOct 4, 2019
I heard something in this course which I have never heard before. The professor emphasizes on physical prospective of this course intentionally and this is very useful to describe the concept.
RVによりJul 6, 2018
I recommend this course if you want to learn acoustics. I enjoyed this course.
SSによりApr 21, 2018
Very informative and useful. The Teaching methodology is impressive.
提供：
Korea Advanced Institute of Science and Technology(KAIST)
The Korea Advanced Institute of Science and Technology (KAIST) was established in 1971 by the Korean government as the nation’s first research-intensive graduate school for science, engineering and technology. It has now grown into one of the world’s best universities, delivering top notch education and research programs for undergraduate and graduate students. KAIST encourages interdisciplinary and convergent research across a wide spectrum of disciplines, as well as strong collaborations with industry and global institutions.
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