Audio and Digital Sound Processing

Course title

L0037000

Course description

This course is designed to introduce students to the techniques of sound processing including basic aspects of human hearing, physics of acoustics, cognitive psychology of hearing, audio transmission quality, digital audio, and speech synthesis and speech recognition technology.

Purpose of class

In the first half of the lecture, participants learn analogue aspects centered on the correspondence between the physical properties of sound and human senses. In the second half of the lecture, participants learn the basics of audio signal processing, and then learn about coding of speech signals, speech synthesis, and speech recognition.

Goals and objectives

Be able to explain the outline of basic concepts related to sound and sound processing engineering and the basic mechanism of sound information processing.
Be able to explain basic technical terms related to acoustic and speech processing engineering.
Be able to explain representative techniques and information processing methods related to digital sound processing.

Relationship between 'Goals and Objectives' and 'Course Outcomes'

	Mid-term Examination	Final Examination	Total.
1.	15%	19%	34%
2.	15%	18%	33%
3.	15%	18%	33%
Total.	45%	55%	-

Evaluation method and criteria

- The mid-term and final examinations will be conducted by means of paper tests.
- Students who have been absent from the class five times or more will be considered to have withdrawn from the course, and their grade will not be evaluated.

The passing criteria (60%) include the ability to generally explain the fundamental concepts related to sound and sound processing engineering and to generally explain the representative techniques and information processing methods related to digital sound processing.

Language

Japanese

Class schedule

	Class schedule	HW assignments (Including preparation and review of the class.)	Amount of Time Required
1.	The origin of the ability to listen	Read the textbook in advance and research basic concepts and keywords.	60minutes
1.	The origin of the ability to listen	Deepen your understanding of the origin of the ability to listen using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
2.	Physical properties of sound(1)	Read the textbook in advance and research basic concepts and keywords.	60minutes
2.	Physical properties of sound(1)	Deepen your understanding of the physical properties of sound using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
3.	Physical properties of sound(２)	Read the textbook in advance and research basic concepts and keywords.	60minutes
3.	Physical properties of sound(２)	Deepen your understanding of the physical properties of sound using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
4.	Characteristics of human hearing(1)	Read the textbook in advance and research basic concepts and keywords.	60minutes
4.	Characteristics of human hearing(1)	Deepen your understanding of the mechanics of the ear and the relationship between the physical and psychological aspects of sound using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
5.	Characteristics of human hearing(２)	Read the textbook in advance and research basic concepts and keywords.	60minutes
5.	Characteristics of human hearing(２)	Deepen your understanding of the mechanics of the ear and the relationship between the physical and psychological aspects of sound using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
6.	Basic characteristics of acoustic information	Read the textbook in advance and research basic concepts and keywords.	60minutes
6.	Basic characteristics of acoustic information	Deepen your understanding of the basic characteristics of acoustic information using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
7.	Summary of the first half Mid-term evaluation	Review the contents of Lectures 1–6 before the mid-term examination.	90minutes
7.	Summary of the first half Mid-term evaluation	Review Lectures 1–6 based on the sample answers and explanations of the exam.	60minutes
8.	Quality of voice transmission	Read the textbook in advance and research basic concepts and keywords.	60minutes
8.	Quality of voice transmission	Deepen your understanding of the quality of voice transmission using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
9.	Basic theory of music	Read the textbook in advance and research basic concepts and keywords.	60minutes
9.	Basic theory of music	Deepen your understanding of the basic theory of music using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
10.	Basic technology of audio	Read the textbook in advance and research basic concepts and keywords.	60minutes
10.	Basic technology of audio	Deepen your understanding of the basic technology of audio using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
11.	Digital processing of sound	Read the textbook in advance and research basic concepts and keywords.	60minutes
11.	Digital processing of sound	Deepen your understanding of the digital processing of sound using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
12.	Speech synthesis technology	Read the textbook in advance and research basic concepts and keywords.	60minutes
12.	Speech synthesis technology	Deepen your understanding of the speech synthesis technology using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
13.	Speech recognition technology	Read the textbook in advance and research basic concepts and keywords.	60minutes
13.	Speech recognition technology	Deepen your understanding of the speech recognition technology using the textbook as a reference. Also, conduct research on technologies related to the course content.	60minutes
14.	Summary of the second half Final evaluation	Review the contents of Lectures 8–13 before the final examination.	120minutes
14.	Summary of the second half Final evaluation	Review Lectures 8–13 based on the sample answers and explanations of the exam.	60minutes
Total.	-	-	1770minutes

Feedback on exams, assignments, etc.

ways of feedback	specific contents about "Other"
授業内と授業外でフィードバックを行います。	・授業内で実施する確認問題の「質問・感想」欄で受けたコメントに対し、次回以降の授業で回答する。・中間・期末試験の結果については、ScombZ などによりフードバックを行う。

Textbooks and reference materials

Japanese Textbook
米村俊一: 「音」を理解するための教科書～「音」は面白い：人と音とのインタラクションから見た音響・音声処理工学, コロナ社, 2021. ISBN 978-4-339-00942-2

Prerequisites

Refer to the syllabus in advance and create a study plan by using the table of contents in the textbook as a reference, among other methods.

Office hours and How to contact professors for questions

Toyosu: 40 minutes after the class (Wednesday, 15:00-15:40)
Accept questions and consultations via email.

Regionally-oriented

Non-regionally-oriented course

Development of social and professional independence

Course that cultivates a basic problem-solving skills

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

3.GOOD HEALTH AND WELL-BEING
9.INDUSTRY, INNOVATION AND INFRASTRUCTURE

Last modified : Wed Mar 12 04:08:51 JST 2025