iMovieで字幕を追加するには？

Adding subtitles to your videos is an effective way to improve accessibility, enhance viewer engagement, and boost comprehension. Whether you’re creating content for social media, educational purposes, or business presentations, subtitles make videos more inclusive for a global audience.

Apple’s iMovie is a popular video editing tool available on Mac, iPhone, and iPad, offering a straightforward way to manually insert subtitles. However, iMovie does not support automatic subtitle generation or importing SRT files, which means users must enter and format subtitles manually.

This guide will walk you through the process of adding subtitles in iMovie on different devices, provide best practices for making your subtitles effective, and introduce an alternative AI-powered transcription tool, VOMO AI, for those looking for a faster and smarter solution.

1. Why Add Subtitles to Your Videos?

Subtitles serve multiple purposes, making them an essential feature for content creators, educators, and businesses.

• Improves Accessibility – Subtitles make content available to people who are deaf or hard of hearing.

• Enhances Comprehension – Viewers can read along, which is especially helpful for non-native speakers.

• Boosts Engagement – Many social media users watch videos on mute, and subtitles help retain their attention.

• Supports SEO & Reach – Platforms like YouTube favor videos with subtitles, making them more discoverable.

While iMovie offers tools to manually add subtitles, for those who need an efficient and automated way to transcribe speech into text, VOMO AI provides a faster solution.

2. How to Add Subtitles in iMovie on Mac

Step 1: Create or Open a Project

• Launch iMovie and select an existing project or create a new one by clicking “Create New” > “Movie”.

Step 2: Import Your Video

• Click “Import Media”, select the video file, and drag it to the timeline.

Step 3: Add a Title for Subtitles

• Navigate to the “Titles” tab at the top.

• Choose a text style that suits subtitles, such as “Lower Third” or “Standard”.

Step 4: Enter Subtitle Text

• Drag the selected title onto the timeline, positioning it above the video clip where you want the subtitle to appear.

• In the preview window, type in the subtitle text and adjust the font, size, color, and position.

Step 5: Adjust Subtitle Duration

• Click on the title bar in the timeline and drag the edges to match the duration of the spoken dialogue.

Step 6: Repeat for Additional Subtitles

• Repeat steps 3 to 5 for each new subtitle segment.

Limitations on Mac: Since iMovie does not support automatic subtitles, users must manually add each subtitle, which can be time-consuming for long videos.

3. How to Add Subtitles in iMovie on iPhone/iPad

Step 1: Start a New Project

• Open iMovie and tap “Create Project” > “Movie”.

Step 2: Import Your Video

• Select your video from the media library and tap “Create Movie”.

Step 3: Add a Title

• Tap on the video clip in the timeline and select the “T” (Titles) icon.

Step 4: Edit and Position the Subtitle

• Choose a title style that works for subtitles.

• Tap the sample text, enter your subtitle, and adjust the font, size, and position.

Step 5: Adjust Timing

• Drag the edges of the title box in the timeline to match the dialogue’s duration.

Step 6: Repeat for Additional Subtitles

• Follow the same process for each subtitle segment.

Limitations on iPhone/iPad: The mobile version of iMovie offers fewer formatting options, making subtitle customization more restrictive.

4. VOMO AI: The Smarter Alternative for Subtitle Generation

If you’re looking for a more efficient way to add subtitles without manually typing them out, VOMO AI can automatically transcribe audio from your videos and generate text-based subtitles.

Why Use VOMO AI Instead of Manually Adding Subtitles?

✔ AI-Powered Transcription – Automatically converts speech into text with high accuracy.

✔ Faster Workflow – No need to manually type each subtitle.

✔ Multi-Language Support – Transcribes and translates videos in 50+ languages.

✔ Text Formatting Options – Allows easy editing and export to subtitle-friendly formats.

✔ Works with YouTube & Other Video Sources – Simply paste a YouTube link or upload an audio file for transcription.

💡 Instead of spending hours manually adding subtitles in iMovie, VOMO AI transcribes and formats them for you in just minutes.

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5. Best Practices for Adding Subtitles in iMovie

• Maintain Consistency – Use the same font, size, and position throughout the video.

• Ensure Readability – Choose contrasting colors and avoid overly decorative fonts.

• Sync with Audio – Time subtitles correctly so they match the spoken words.

• Keep It Brief – Use short, concise sentences to ensure viewers can read quickly.

• Position Strategically – Place subtitles at the bottom center without blocking important visuals.

While these practices can improve subtitle clarity, manually adding subtitles in iMovie can be tedious. For those who need an automatic, AI-powered transcription tool, VOMO AI offers a faster solution.

6. Limitations of iMovie and Alternative Solutions

While iMovie is a great free tool for video editing, it has some limitations when it comes to subtitles:

• No Automatic Subtitles – Requires manual entry for every subtitle.

• No SRT File Support – Cannot import external subtitle files.

• Time-Consuming for Long Videos – Adding subtitles manually can take hours.

Alternative Solutions for Subtitling:

• VOMO AI – Best for AI-powered transcription and subtitle generation.

• Rev.com – Professional human-generated transcripts and subtitles.

• Kapwing – Online video editor with auto-captioning features.

7. Conclusion: What’s the Best Way to Add Subtitles in iMovie?

If you only need to add a few subtitles, iMovie’s manual method works fine. However, if you’re dealing with long-form content, manually entering subtitles is time-consuming and inefficient.

📌 For small projects? → Use iMovie’s built-in title feature.

📌 For automatic transcription? → Use VOMO AI to generate subtitles in minutes.

📌 For professional subtitling? → Use Rev.com or other dedicated tools.

VOMO AI provides a faster and smarter way to generate subtitles, transcribing speech into text automatically, making it the best choice for those looking to streamline their workflow.

🚀 Try VOMO AI now and eliminate the hassle of manual subtitle creation!

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