An animated text video turns written words or recognized speech into moving typography. AI Free Audio to Video rotates and shrinks earlier phrases as new words enter, creating a changing composition while keeping your uploaded soundtrack.
Supported formats
MP3, WAV, M4A, AAC, FLAC, OGG, MP4, MOV, WebM and MKV; or typed text. Export H.264/AAC MP4 at 720p or 1080p, in 9:16, 16:9 or 1:1.
How it works
1. Add your words or recording
Upload an audio file or a video with sound. Leave the text field empty to recognize its words automatically, or enter your own text with one phrase per line. Without uploaded audio, typed text produces a silent video.
2. Choose the animation and style
Select mixed text composition for rotating, shrinking phrases, or choose typewriter, fade, slide, zoom, rotation or bounce. Set the palette, font size, background and aspect ratio. A short phrase can use larger text than a long sentence.
3. Review, correct and export
Generate the MP4, play it with sound, and check the wording and timing. Edit individual phrases, start and end times, and line colors before regenerating. Download the result within 24 hours.
Limits and privacy
Audio and video: up to 100 MB and 10 minutes. Typed text: up to 6,000 characters and 100 lines, with at most 150 characters per line. Without audio, each line lasts 1–15 seconds and the total cannot exceed 10 minutes.
What to check before sharing
When typed text and audio are supplied together, lines are evenly distributed across the soundtrack; this is not forced speech alignment. Automatic singing recognition may miss or mishear words. The browser style preview is approximate and silent; check the exported video for final timing.
Common questions
Can I create a text video without uploading audio?
Yes. Enter text, choose the seconds per line, and generate a silent MP4.
How is this different from karaoke subtitles?
Karaoke highlights words within their audio timing. Mixed text composition moves entire phrases, rotating and shrinking older text as the next phrases appear.
Can I use my own background?
Yes. Upload a JPG, PNG or WebP background up to 5 MB, or choose a built-in theme or solid color.