Course title
G00330003
Acoustic Systems

 KOIKE Yoshikazu
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
Advanced Electronic Engineering D 電子工学に関する基礎知識と、応用する能力を身に付けることができる。 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
The class aims to be able to understand the estimation of the sound emission, the design principle of the electroacoustic transducer and the sense of hearing. Finally, you practice to calculate frequency characteristics by finite element method and digital signal processing.
Course description
Sounds penetrates deeply into our daily life, for example, conversation, music and so on. The topics of the class are the estimation of the sound emission, the design principle of the electroacoustic transducer and the sense of hearing. Finally, you practice to calculate frequency characteristics by finite element method and digital signal processing.
Goals and objectives
  1. Be able to understand propagation sound and to calculate sound field.
  2. Be able to understand operation of electro-acoustic systems and to design the systems.
  3. Be able to understand sense of hearing, acoustic parameters and employed unit in acoustics.
  4. Be able to understand sense of hearing, acoustic parameters and employed unit in acoustics.
  5. Be able to design sound field using finite element analysis.
Relationship between 'Goals and Objectives' and 'Course Outcomes'

 Tests Reprot Total.
1. 22% 22%
2. 22% 22%
3. 22% 22%
4. 22% 22%
5. 12% 12%
Total. 88% 12% -
Evaluation method and criteria
4 times exercise (22% X 4 =88%)
Final report of FEM (12%)
Pass the class when total score is beyond 60%
Language
English
Class schedule

 Class schedule HW assignments (Including preparation and review of the class.) Amount of Time Required
1. Introductions of the course, history, the relation of the electronic on the acoustics Review of electro-magnetics. 90minutes
2. Propagation of the sound in one dimensional system. Print material distributed on Scomb. 180minutes
3. Exercise (1st)

Plane wave propagation and wave equation of the sound in three dimensional system. 		Print material distributed on Scomb. 240minutes
Reviewing 1st, 2nd and 3rd classes.
4. Acoustic impedance and acoustic absorption. Print material distributed on Scomb. 180minutes
5. Basic principle of the vibration. Print material distributed on Scomb. 180minutes
6. Exercise (2nd)

Analogies of acoustics to machineries and electronics. 		Print material distributed on Scomb. 240minutes
Reviewing 4th, 5th and 6th classes.
7. Kinds of an electro-acoustic transducer and an operation equation of the transducer. Print material distributed on Scomb. 180minutes
8. Design of principle of an electro-acoustic transducer (1) Print material distributed on Scomb. 180minutes
9. Design of principle of an electro-acoustic transducer (2) Print material distributed on Scomb. 180minutes
10. Exercise (3rd)

Design of principle of an electro-acoustic transducer (3) 		Print material distributed on Scomb. 240minutes
Reviewing 7th, 8th, 9th and 10th classes.
11. Hearing of sense Print material distributed on Scomb. 180minutes
12. Digital signal processing for acoustics (1) Print material distributed on Scomb. 180minutes
13. Exercise (4th)

Digital signal processing for acoustics (2) 		Print material distributed on Scomb. 240minutes
Reviewing 11th, 12th and 13th classes.
14. Practice of sound filed calculation using FEM Print material distributed on Scomb. 240minutes
Total. - - 2730minutes
Feedback on exams, assignments, etc.
ways of feedback specific contents about "Other"
Feedback in the class
Textbooks and reference materials
Printing documents are derived on Scomb.
Prerequisites
Completion of electromagnetism and electrical circuit.
Office hours and How to contact professors for questions
  • After the class by Zoom from 12:30 - 12:50.
  • 17:00-18:00, Wednesday (Send e-mail in advance)
Regionally-oriented
Non-regionally-oriented course
Development of social and professional independence
  • Course that cultivates an ability for utilizing knowledge
Active-learning course
More than one class is interactive
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 13:44:48 JST 2026