#1 Online AI video editor
Audio description for YouTube videos and online courses
Add audio description to YouTube videos and course lessons without writing a script. VIDIO describes what's on screen in the pauses, reads it in a natural voice, and gives you the narrated video, an audio track and a WebVTT file. Try it free.
Trusted by over 1 Million users worldwide
SpeechThe lecturer points to an equation on the chalkboard.
How to add audio description to a YouTube video
Describe the video with VIDIO, then publish the version or files your platform takes.
Upload your video
Upload the same file you publish on YouTube or in your course.
48:27MP4 · 11.9 GB0%Check the descriptions
VIDIO writes a description for each pause: what's shown, slides, code and scene changes. Edit any line and add the names of the people in it.
- 0:06Written by AI
A man writes an equation on the chalkboard.
- 0:31
The board shows a graph with two curves.
- 1:12
A slide reads: Practice problems.
Publish it
Upload the narrated MP4 as an audio-described version and link it from the original, or add the narration track or WebVTT file where your platform supports them.
0%MP41080pMP4
Made for lessons and channels
Tutorials and lectures that everyone can follow
Viewers who can't see the screen hear the slides, the board and the steps you show, in the pauses between what you say.
Descriptions in the pauses
The narrator reads only where nobody is speaking, with the lesson's sound lowered underneath.
SpeechHe writes a second equation below the first.
Slides read aloud
Slide titles and on-screen text are read out, so a lesson's structure is clear.
On-screen textA slide reads: Early Solar System Explorations.
Files for YouTube and course players
The narrated MP4, a narration track, a WebVTT descriptions file and the script.
<track kind="descriptions"> WEBVTT 00:00:06.000 --> 00:00:09.200 A man writes an equation on the chalkboard.
Names and terms right
Add the presenter's name and a note about the lesson; edit any line before you export.
- 0:06Written by AI
A man writes an equation on the chalkboard.
- 0:31
The board shows a graph with two curves.
- 1:12
A slide reads: Practice problems.
Extended for dense lessons
When there's no pause long enough, the video holds its frame while the description is read.
Video pausedA voice that fits your channel
Pick one of four natural narrators.
Who it's for
For channels, classes and courses
Anyone who teaches or explains on video.
- 0%
Slides read out
Course creators
Online course lessons
Describe slides, screens and demos in every lesson.
MP416:9 · 22:00
0
Lines described
YouTube educators
Explainers and tutorials
Publish an audio-described version next to the original.
YouTube16:9 · 14:00
- 18Board writing12Slides4Demos
Described
Universities and schools
Recorded lectures
Read out what's written on the board.
MP416:9 · 50:00
- Narrated videoWebVTT descriptions
What's included
Public-sector teams
Public information on YouTube
Add the description track accessibility standards ask for.
YouTube16:9 · 3:00
0
Steps described
Training teams
Software walkthroughs
Say which button is clicked and what opens.
MP416:9 · 8:00
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