How to Add Voiceovers and Captions Automatically

June 5, 2025
5 min read
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How to Add Voiceovers and Captions Automatically to AI Videos

Captions and voiceovers are two of the most underrated video marketing tools in 2025—and now, thanks to AI, adding both is faster, cheaper, and easier than ever before.

Whether you’re a real estate agent, content creator, or SaaS company producing product explainers or listing tours, AI-powered voice and caption tools help you:

✅ Increase watch time
✅ Improve accessibility
✅ Boost SEO
✅ Drive higher engagement on social media

This guide shows you exactly how to add captions and voiceovers automatically to your videos using AI, which tools to use, and how to integrate this into a repeatable workflow.

Why Voiceovers and Captions Matter

Voiceovers:

  • Add emotion, clarity, and polish to your content
  • Make your video feel premium and professional
  • Let you deliver your message without being on camera
  • Save hours of time on manual narration or hiring voice talent

Captions:

  • Help viewers understand your video with the sound off (80% of social media users watch muted)
  • Improve SEO through transcript indexing
  • Boost engagement and accessibility

🡆 Related: The Anatomy of a High-Converting Real Estate Video (with AI)

How AI Handles It All (Fast)

With AI, you can:

  • Convert a script or summary into natural-sounding voiceover
  • Generate subtitles in multiple languages
  • Auto-sync text with visuals
  • Export vertical versions for Reels and TikTok with burned-in captions

🡆 Try the Free PropertyEdits.ai Walkthrough

Step-by-Step: Add Voiceover to Your AI Video

Here’s how to generate a full voiceover in minutes:

✅ Step 1: Prepare Your Script

Use ChatGPT to write or summarize your video topic.

Example prompt:

“Write a 60-second real estate listing video script in a friendly but professional tone for a 4-bedroom home in Austin, Texas.”

🡆 Related: AI SEO Toolkit for Video Creators

✅ Step 2: Choose Your Voice

Platforms like PropertyEdits.ai, Descript, and ElevenLabs offer:

  • Male and female voices
  • Multiple accents
  • Adjustable tones (enthusiastic, calm, authoritative)
  • Realistic emotion synthesis

You simply paste your script and select a voice. The tool handles the recording and syncing.

🡆 Related: Top 5 AI Video Editing Tools for Busy Creators in 2025

✅ Step 3: Auto-Narrate and Export

Your voiceover is automatically embedded into your AI video. You can also:

  • Adjust pacing and pauses
  • Add background music behind the voice
  • Export in multiple aspect ratios for different platforms

Tools like PropertyEdits.ai let you do this in one click—no timeline scrubbing required.

Step-by-Step: Add Captions Automatically

Once your video has a voiceover, here’s how to generate accurate, branded captions:

✅ Step 1: Upload to Captioning Tool

Use tools like:

  • Descript – Edit via transcript and export with captions
  • CapCut – Add auto-generated subtitles with styling
  • Runway ML – Smart caption styling for Reels
  • YouTube Studio – Auto-generate and translate subtitles for uploads

🡆 Related: From Static to Cinematic: Transforming Property Photos With AI

✅ Step 2: Style Your Captions

Use high-contrast fonts and backgrounds. Make sure text is readable on mobile. Consider:

  • Colored background behind text
  • Animated word reveals
  • Emojis or branding elements

TikTok-style captions work best for vertical video—use large font sizes and bold color themes.

✅ Step 3: Export With or Without Burned-In Text

You can export:

  • Hardcoded captions (baked into the video for social use)
  • SRT files (for SEO and platform-native support)
  • Multilingual versions (for global reach)

🡆 Related: Turn One Video Into 10 Pieces of Content

Use Cases by Industry

🡆 Related: Why AI Video is the New Standard for Listing Presentations

Workflow Template: Weekly Voice + Caption Strategy

Here’s how to integrate AI voice and subtitles into your content plan:

🡆 Related: The Weekly AI Video Content Plan (Template + Tools)

Results: What You’ll Gain

With captions and voiceovers in place, your videos will:

✅ Hold attention longer
✅ Be more inclusive and accessible
✅ Rank better in search results
✅ Convert more leads from views
✅ Be easier to reuse across platforms

Final Thoughts: Voice and Captions Are No Longer Optional

If you're serious about using video to grow your business or brand, voice and captions are essential—and with AI, there’s no excuse not to use them.

You can add narration that feels human, captions that look polished, and deliver a better experience across every platform—in minutes, not hours.

🡆 Try PropertyEdits.ai to Add Voice + Captions Automatically

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