Add narrated descriptions of what happens on screen to your videos, so blind and low-vision viewers can follow every scene. Review the script, choose a voice and language, and export the result.
Audio description is an extra narration track that describes the key visual elements of a video, such as actions, settings, people and on-screen text, for people who are blind or have low vision. AI audio description automates the work: the visual content is analysed, a description script is written into the gaps in the dialogue, voiced with a synthetic voice and mixed with the original soundtrack.
Actions, settings, facial expressions and on-screen text carry meaning that dialogue alone doesn't convey. Writing, recording and mixing audio description by hand takes time and budget, so many videos are published without it.
Klassifier analyses your video, writes short descriptions of the important visual information and places them in the natural pauses between dialogue. You review and edit the script, then it is voiced with a natural AI voice and mixed with the programme audio.
The visual content is analysed and described in short, factual sentences: who is on screen, what they do, where the scene takes place and any important text.
Descriptions are timed to the gaps between spoken lines, so the narration doesn't talk over the dialogue.
Choose script-only output, review and correct the description in an editor, then render the voiced version once you are happy with it.
Pick the narration language and a natural AI voice from the Klassifier voice library.
Add an optional synopsis and a list of the main characters so the narration names people correctly and understands the story.
Download the audio track with the description mixed into the programme sound, and the description script for your own review or archive.
Add the video in the Klassifier web app and choose the narration language. Optionally add a synopsis and the cast.
Klassifier writes descriptions of the visual content and places them in the pauses between dialogue.
Read through the script, adjust wording or timing, and choose the voice.
The script is voiced and mixed with the programme audio. Download the mixed track and the script.
Make drama, documentaries and series accessible to blind and low-vision audiences on your platform or channel.
Describe slides, demonstrations and on-screen text so every learner can follow the course.
Reach a wider audience with campaign, product and brand videos that work without seeing the picture.
Add description to internal communications, public information videos and recorded events.
The EU European Accessibility Act sets accessibility requirements for a range of products and services, including some audiovisual media services. Audio description helps you make video content accessible to blind and low-vision users.
The Web Content Accessibility Guidelines include success criteria for audio description of prerecorded video. A description track produced with Klassifier helps you work towards them.
In the United States, the FCC's audio description rules under the CVAA apply to certain broadcasters and video programming distributors. Klassifier helps you produce description tracks efficiently.
Requirements depend on your sector, country and content. Klassifier is a production tool and does not certify compliance; review the output and check your obligations with your accessibility or legal advisor.
Start a free trial in the Klassifier web app, or book a demo and we'll walk you through it with your own data.
