[Information I Exercises] 2-7 Digital Representation of Sound | Information I Common Test Prep Co...

Опубликовано: 16 Июль 2026
на канале: せかチャン - 世界一わかりやすい情報科チャンネル

7,924

102

This is an explanatory video for [Information Technology I Practice Course] 2-7 Digital Representation of Sound.

This video explains practice problems related to the process of digitizing sound (sampling, quantization, and coding), which are frequently tested in exams. At Level 3, we'll challenge you with the [Information Technology Basics 2022 Main Exam]! 🎉

⭐Let's learn IT for free and have fun! That's the idea behind these videos! 😁
→Please support us by subscribing, liking, and sharing! ✨✨

🌸Subscribe here!

https://www.youtube.com/c/SekaChan?su...

📄Information Technology I Entrance Exam Preparation Problem Set (PDF) here!

https://bit.ly/4fkse1X

📄Information Technology I Course Complete Mastery Sheet (PDF) here!

https://bit.ly/4gwwSep

👀Related videos and websites here!

▼Information Technology I Basic Course: Chapter 2 Summary
   • 【この1本でOK】満足度日本一IT講師による高校情報I講座｜2章：コミュニケーション...

▼Basic Course PDF Materials
https://sekachan.net/info1-basic/

▼Previous Video
   • 【情報I演習】2-6 文字のデジタル表現｜情報1共通テスト対策講座

▼Next Video
   • 【情報I演習】2-8 画像のデジタル表現｜情報1共通テスト対策講座

▼Playlist
   • 【共通テスト8割突破】情報Ⅰ演習講座

💡Chapters
00:00 Today's Theme
00:30 Question and Answer
01:15 Practice 1
06:49 Practice 2
12:05 Entrance Exam Questions
🙋‍♂️Profile
【Sekachan Sugawara】
・Tokyo Institute of Technology Graduate School of Information Science and Technology Graduation
Worked as a cram school instructor for 5.5 years while an undergraduate and graduate student
Planned and conducted seminars on information technology and programming as an IT training instructor
Received "Instructor of the Year (Japan's No. 1 in Satisfaction)" and "Java Instructor Award" from Oracle for four consecutive years

I love the moment when students say "I understand!" and when they find learning enjoyable.

I started YouTube because I wanted to expand free learning (places where you can learn for free).

Let's have fun studying and growing together!

📳X (Old Twitter)
https://x.com/SekaChanIT

🎵Music provided by
DOVA-SYNDROME
https://dova-s.jp/
*May not be used in all videos

#InformationI #CommonTest #SekaChanInformationIPracticeCourse
#InformationScience #HighSchoolInformationScience #BasicInformationTechnologyTechnologist #ITPassport