Course title
F00320003
Acoustical Engineering

 MUTO Kenji
Middle-level Diploma Policy (mDP)
Program / Major mDP Goals Courses
Fundamental Mechanical Engineering F 産業界や社会の要請を把握して解決するべき課題を設定し、さまざまな工学分野の知識を関連付けながら設計生産技術を活用することで、立案した構想に従って研究を進め課題を解決することができる。 Sub
Advanced Mechanical Engineering F 産業界や社会の要請を把握して解決するべき課題を設定し、機械工学の学理を応用して異分野を含む融合分野で革新的な機能を創成することができる。 Sub
Environment and Materials Engineering B 地球環境や地域社会との調和を見据えて、さまざまな工学分野に関わる問題を解決することができる。 Sub
Chemistry and Biotechnology B 地球環境や地域社会との調和を見据えて、さまざまな工学分野に関わる問題を解決することができる。 Sub
Electrical Engineering and Robotics D 電気工学や関連する工学の技術分野を課題に適用し、社会の要求を解決するために応用することができる。 Sub
Information and Communications Engineering B-3 最先端のシステムやネットワークに対応できる高度な専門知識や技能を習得することができる。 Main
Computer Science and Engineering G 技術的課題に対してさまざまな工学分野の知識を関連付けながら主体的に取り組み、継続的に学修する能力を身に付けることができる。 Sub
Urban Infrastructure and Environment G ⼟⽊⼯学における現実の問題について、⼯学・専⾨基礎知識を⽤いて理解・解決することができる。 Sub
Purpose of class
Acquire the mechanism of the feature, the measurement, the evaluation method of the sound, and the sound device
Course description
This course covers main subjects of acoustic engineering. They are audio transducers and sound propagation, and aural characteristic in audio interface. Additionally, they leads to understanding of recent acoustical systems.
Goals and objectives
  1. Students will explain the basic characteristics of sound
  2. They will explain of mechanism of acoustical transducers
  3. They will explain the mechanism of electroacoustic device
  4. They will explain the measurement and evaluation of acoustics
Relationship between 'Goals and Objectives' and 'Course Outcomes'

 midterm examination term examination report Total.
1. 13% 2% 12% 27%
2. 12% 3% 13% 28%
3. 0% 10% 12% 22%
4. 0% 10% 13% 23%
Total. 25% 25% 50% -
Evaluation method and criteria
Grade is judged by the midterm examination (25%), the term examination (25％), reports and quizzes(50%). Passing standard is over 60%.
Students who can explain key textbook terms, perform major operations, and solve 80% of the exercises given during lectures can achieve a score of 60 points or higher.
Language
Japanese
Class schedule

 Class schedule HW assignments (Including preparation and review of the class.) Amount of Time Required
1. Overview
- Base of acoustic engineering
- Base of sound and its level
- Hearing and speech 		Review Chapter 1 of the textbook 190minutes
2. Transfer of sound (1)
- Plane wave
- wave equation
- sound pressure and particle velocity
- free sound field 		Preview Chapter 6.1.1 of the textbook
Review Chapter 6.1.1 of the textbook 		190minutes
3. Transfer of sound (2)
Spherical wave
Radiation from source 		Preview Chapter 6.1.2 and 6.2 of the textbook
Review Chapter 6 of the textbook 		190minutes
4. Transmission of sound
- Radiation from source
- acoustic tube
- standing wave 		Preview Chapter 6.4.1 and 7.2 of the textbook
Review Chapter 7 of the textbook 		190minutes
5. Variety of sound device and its structure
- Hearing and speech
- recorder
- Loudspeaker
- Electroacoustic conversion
- acoustic impedance 		Preview loudspeaker of Chapter 2 of the textbook
Review Chapter 2 of the textbook 		190minutes
6. Structure of Loudspeaker
- basic equation
- influence of enclosure
- sensitivity 		Preview Chapter 3 and 4 of the textbook
Review Chapter 3 and 4 of the textbook 		190minutes
7. Variety of sound device and its structure
- Microphone
- basic equation 		Preview microphone of Chapter 2 and 3 of the textbook
Review Chapter 2 and 3 of the textbook 		190minutes
8. Examination
Explanation 		Review of lecture 190minutes
9. Variety of sound device and its structure
- Microphone
- sensitivity
- directional pattern 		Preview Chapter 3 and 4 of the textbook
Review Chapter 3 and 4 of the textbook 		190minutes
10. design of audio transducer
- directional microphone
- headphoone for music
- microphone for measuremnet
- octave analysis 		Preview Chapter 5 of the textbook
Review Chapter 5 of the textbook 		190minutes
11. Measurement and analysis
- acoustic field
- device
- sound level meter 		Preview Chapter 9 and 10 of the textbook
Review Chapter 9 and 10 of the textbook 		190minutes
12. Spatial acoustic
- room acoustic
- measurement of impulse response
- binaural system
- transaural system 		Preview Chapter 11 of the textbook
Review Chapter 11 of the textbook 		190minutes
13. Application of electroacousitcs
- Telephone system
- Echo canceller
- Noise canceller 		Preview Chapter 12 of the textbook
Review Chapter 12 of the textbook 		190minutes
14. Examination
Explanation 		Review of lecture 190minutes
Total. - - 2660minutes
Feedback on exams, assignments, etc.
ways of feedback specific contents about "Other"
Feedback in the class
Textbooks and reference materials
Juro Ohga, Audio transducers Engineering -- fundermentals and mordan technology of microphones, loudspeakers and earphones -- , coronasha
Prerequisites
It is desirable to have an understanding of Electrical Circuit Theory, Electromagnetism, Mathematics of Information and Communication Technology 1.
Office hours and How to contact professors for questions
  • Monday and Tuesday evening
Regionally-oriented
Non-regionally-oriented course
Development of social and professional independence
  • Course that cultivates an ability for utilizing knowledge
Active-learning course
N/A
Course by professor with work experience
Work experience Work experience and relevance to the course content if applicable
N/A N/A
Education related SDGs:the Sustainable Development Goals
  • 9.INDUSTRY, INNOVATION AND INFRASTRUCTURE
Last modified : Sat Mar 14 13:37:09 JST 2026