Add Natural AI Voiceovers To Uploaded Videos
Upload your video footage file, type your script, and pair it with hyper-realistic AI voices.
Supports MP4, MOV video files + text script
No credit card required. Try instantly in Auto Poster App.
Silent Video Footage + Script
Uploaded scenic video footage paired with narration copy
Every morning offers a quiet promise. A blank page. The world wakes up, not with a shout, but with a gentle glow. Whatever happened yesterday is gone. Today is yours. Breathe it in.
Narrated Video with Studio Voiceover
Video synchronized with high-fidelity AI voice narration
AI Video Voice Over Generator
Turn scripts into human-sounding voice narration with Auto Poster AI Video Voice Over Generator. Select from over 100 studio-grade AI voice actors spanning diverse accents, genders, and tones. The platform automatically aligns generated speech audio with your uploaded video footage, lowers background music levels during voice passages, and generates synchronized captions.
Who Uses AI Video Voice Over?
Tailored solutions for content creators, agencies, marketers, and businesses.
Corporate Training & HR
Produce professional onboarding and instructional videos without booking voice talent.
Real Estate Agents
Add engaging voiceover walkthroughs to uploaded property listing videos.
App & Software Demos
Narrate product walkthrough video files for YouTube and SaaS landing pages.
Documentary Creators
Narrate historical or educational video essays with authoritative voice profiles.
Key Features & Capabilities
Built for high performance content creation and maximum virality.
100+ Realistic Voices
Select from diverse accents, tones, and gender voice profiles.
Auto Audio Mixing
Automatically duck background music during speech passages.
Multi-Language Speech
Generate scripts in English, Spanish, French, German, Japanese, and more.
Subtitles Included
Optionally generate auto-captions matching the voiceover audio.
How It Works in 3 Easy Steps
Fast and simple workflow directly inside Auto Poster App.
Upload Video File & Script
Attach your MP4/MOV video clip and enter your narration script.
Choose AI Voice
Preview and select the ideal voice actor tone.
Render & Sync
Export your completed narrated video file.
Frequently Asked Questions
Everything you need to know about AI Video Voice Over.
Q. How does automatic audio mixing work with background music?
The tool detects voice speech segments and automatically attenuates (ducks) background music levels by 15-20dB so narration is crisp and audible.
Q. Can I control the emotion and speed of the voiceover actor?
Yes! Adjust vocal pacing, pitch, excitement levels, and pause pauses between sentences.
Q. Are voiceovers licensed for commercial broadcast and social ads?
Yes, all 100+ neural voices come with full commercial rights for ads, broadcast, and monetized platforms.
Q. Does the tool automatically generate matching captions?
Yes! You can toggle on animated captions that sync word-for-word with the generated narration.
Q. Can I upload my own custom script file?
You can paste text scripts or upload TXT/DOCX files directly.
Q. What languages can the voice actors speak?
Over 30 languages including English (US, UK, AU, IN accents), Spanish, French, German, Italian, Portuguese, and Japanese.
Ready to Try AI Video Voice Over?
Launch Auto Poster App right now and transform your content creation workflow.