In the past, creating subtitles for lecture videos required significant time, cost, and effort. Today, with the help of AI-powered speech recognition, the process has become faster, more accurate, and more accessible than ever. This article explores the role of subtitles in online education, how AI supports subtitle creation, and key considerations when applying it in real teaching scenarios. Why Are Subtitles Becoming More Important in Lecture Videos? Subtitles are not just for the hearing impaired. In online learning environments, they provide more value than many people realize. 1. Improve Learning Comprehension Not everyone learns effectively through listening alone. Subtitles help learners: 2. Support Multilingual Learners For courses with international […]
動画撮影中に言い間違えたり言葉を忘れたりしたときの対処法(それでもプロらしく見せるために)
Forgetting your lines, stumbling over words, repeating yourself, or “freezing” mid-sentence is completely normal when recording a video — even for experienced content creators. The issue isn’t whether you make mistakes, but how you handle them. This article will help you: 1. First: Making mistakes does not reduce your video’s value A common but mistaken belief: “A good video is one that flows perfectly from beginning to end.” In reality: 👉 Your goal is not to never make mistakes, but to manage the viewer’s experience. 2. 5 Common Situations While Filming (and How to Handle Them) Situation 1: Minor stumble, 1–2 wrong words Example: “In this lesson we’ll learn how […]
チュートリアル動画を撮るとき、台本を書くべきか?それとも自然に話すべきか?
When starting to create tutorial videos, many creators—online instructors, course sellers, and marketers alike—get stuck on the same question: “Should I write a script beforehand, or just turn on the camera and speak naturally?” This article provides a neutral analysis of both approaches, explains when to use each one, and introduces a third method commonly used by professional creators. 1. Why This Question Matters for Tutorial Videos Tutorial videos are very different from live speaking or livestreaming: Because of this, how you prepare and deliver your content directly affects: 2. Quick Comparison: Scripted vs. Natural Speaking Criteria Scripted Natural Speaking Content clarity High Medium Natural feel Medium High Suitable for […]
カメラの前で話すのが苦手な場合:教師はどう始めればいい?
“I teach well in the classroom, but the moment I turn on the camera… I freeze.” If you’ve ever thought that, you’re not alone. Many teachers, lecturers, and mentors are highly competent in their field but still feel uncomfortable speaking on camera. This doesn’t reflect your teaching ability — it usually comes from not being used to a new format of communication. This article will help you: Why Is Speaking on Camera So Difficult? It’s not hard because you’re bad at it — it’s hard because the context has changed. 1. The Camera Gives No Feedback In a classroom, you see eye contact, nods, and reactions. A camera is… silent. […]
オンライン講座は長尺動画と短尺動画、どちらで作るべき?
It may seem like a purely “technical” question, but it actually relates directly to your course goals, learner behavior, and how you build long-term content value. When starting an online course, many instructors and creators wonder: 👉 Should I record one long video to cover everything thoroughly, or break it into multiple shorter videos to make it easier for learners to follow? There is no universally correct answer. The decision depends on: This article offers a neutral analysis, without favoring any “camp,” to help you: What Is the Core Difference Between Long and Short Videos? Before choosing, clarify this: the difference is not simply about duration, but about the role […]
講義動画の見栄えがイマイチ?もしかすると、こんなミスをしているかもしれません
When Good Content Is Dragged Down by Poor Visual Quality Many teachers who start creating online courses share the same experience: Even though they prepare carefully, the final video result doesn’t meet expectations. In reality, poor image quality rarely comes from not having expensive equipment. Most problems come from very basic mistakes during the recording process — and nearly all of them can be improved immediately. This article will help you: 1. Using a Webcam or Camera Without Controlling Lighting This is the most common mistake. Many instructors record in their usual workspace, turn on the webcam, and start recording. The result: Simple Fix: 👉 With better lighting alone, your […]
長い講義動画を、学習効果を損なわずに短い動画へ分割する方法
In many online courses—especially professional or skill-based ones—long lectures (30–90 minutes) are still common because instructors want to deliver their full thinking process and knowledge in one complete flow. However, when that content is uploaded to an online learning platform, overly long videos often become one of the biggest reasons students drop out before finishing the course. So: This article provides a neutral analysis based on real online learning behavior and practical experience building courses on Ourdemy. Why Long Lectures Often Don’t Work Well Online In offline classrooms, learners are “held” within a fixed space and time. Online learning behavior is completely different. Common problems with overly long lecture videos: […]
スライド+顔出し:Webカメラはいつオンにするべき?
Whether you turn on your webcam depends on the goal of the lesson, the learning stage, and the learning experience you want to create. This article will help you: What Benefits Does Turning on the Webcam Bring? 1. Increases Presence & Trust When learners can see the instructor’s face: 2. Conveys Emotion & Attitude Some types of content require: In these cases, eye contact, facial expressions, and speaking rhythm matter more than slides. 3. Personalizes the Learning Experience Students often feel more connected to: This directly impacts: When SHOULD You Turn on the Webcam While Showing Slides? You should turn on the webcam if the video serves one of the […]
自宅で講義動画を撮影するための最低限の準備とは?
When starting an online course, many instructors struggle with: 👉 The real question is not “what equipment should I buy?”, but: “What level of preparation is enough to start recording serious lecture videos?” This article will help you clarify: What does “enough” mean for lecture videos? Lecture videos are not promotional videos. Their purpose is to: So, “enough” means: 👉 If you meet these three conditions, you’re ready to start recording. Essential equipment you need to record lecture videos at home Instead of thinking about individual items, group them into these 4 core areas. 1. Audio (Microphone) This is your #1 priority. Students may tolerate average video quality, but poor […]
自分で講義動画を撮影する際のシンプルなカメラアングルの選び方
Recording lecture videos is no longer something “only filmmakers” can do. With just a smartphone or webcam, any teacher, lecturer, or creator can get started. However, in reality: many videos with great content still cause viewers to leave early, simply because the camera angle isn’t appropriate. This article will help you: No complicated setup required. Just choose the right angle. Why Is Camera Angle More Important Than You Think? Camera angle doesn’t just determine whether a video “looks good.” It directly affects learning quality. Specifically, it influences three key factors: 1. Learner Focus When the angle is tilted, shaky, or poorly framed, learners must “spend energy” adjusting—rather than focusing on […]









