AI Audio Description Generator
Al adds spoken narration to make videos accessible for blind and low-vision viewers.
Subly's Al Audio Description feature automatically narrates actions, settings, and on-screen text, syncing narration to your video to meet WCAG 2.2, EAA, and ADA Title Il standards. Make every video accessible in seconds.
Trusted by thousands of customers, from agencies to enterprises
How it works
From Video to Audio Description in Seconds
Subly’s AI checks your video for accessibility, detects when Audio Description (AD) is needed, generates it automatically, and lets you edit and export the final version.
step 1AI Video Check & Report Upload your video and let Subly’s AI analyse accessibility, detect if Audio Description is required, and generate a report highlighting what’s missing. step 2Generate Script Choose a voice and click Generate Script to create an AI Audio Description covering visuals, actions, and scene changes. step 3Generate Audio Track Click Generate Audio to convert your script into narration with natural pauses and preview it in the editor. step 4Download & Publish Export your Audio Description as MP3, MP4, SRT, or WebVTT and upload it to your chosen platform.
WCAG 2.2 EN 301 549 EAA ADA ACA
Why Audio Descriptions Matter
Make videos accessible for blind and low-vision viewers while meeting global accessibility standards.
Accessibility
Adds narrated descriptions of key visual details, giving blind and low-vision audiences equal access to on-screen information and storytelling.
Compliance
Meets WCAG 2.2, EAA, and ADA Title II requirements, ensuring every video meets recognised accessibility standards worldwide.
Engagement
Improves viewer understanding and inclusivity by describing actions, scenes, and emotions that captions or dialogue alone cannot convey.
Compliant & Professional-Grade
Deliver studio-quality audio descriptions that meet EAA, ADA Title II, ACA, and AODA requirements and align with WCAG 2.2 AA/AAA standards.
Accurate, natural, and built for enterprise-scale accessibility.
WCAG 2.2 Ready
Built to meet WCAG 2.2 AA/AAA, with Audio Description Extended as Standard.
Accurate Timing
No overlaps or interruptions. Smarter timestamps fit naturally between dialogue and sound effects.
Studio Quality
Balanced narration and professional mastering for broadcast-ready, clear, and consistent audio.
30+ Languages
Natural-sounding Al voices in 30+ languages, adapted to regional tone and accessibility needs.
Instant, Accurate, Quality Audio Descriptions
Video Accessibility for Every Industry
Learn how teams use Subly to automate audio description and improve video accessibility at scale.
Learning & Education
Make every lesson accessible with captions, transcripts, and audio descriptions that support every learner.
Ecommerce & Product Content
Keep product videos accessible, compliant, and visible across marketplaces, websites, and social platforms.
Marketing & Communications
Reach every audience with accessible campaigns that meet WCAG and regional standards.
Media, Video & Broadcast Production
Deliver accessible, broadcast-ready videos for every client and channel, faster and at scale.
Built for Scale, Speed, and Simplicity
Subly’s enterprise-grade platform automates audio description across entire video libraries. Process thousands of files faster, more accurately, and up to seven times more affordably than manual production.
FAQ
Frequently Asked Questions
What is an “Audio Description” — precisely
Audio Description (AD) is an additional narration track that explains key visual elements in a video, such as actions, settings, gestures, scene changes, and on-screen text. It ensures all users can follow the story or information being presented.
How does Subly's audio description generator work?
Subly's AI analyzes your video frame-by-frame, detecting scenes, actions, text, and visual context.
What languages does Subly support for Audio Description?
Supported languages: English (UK, USA, Australia, Canada), Japanese, Chinese, German, Hindi, French (France, Canada), Korean, Portuguese (Brazil, Portugal), Italian, Spanish (Spain, Mexico), Indonesian, Dutch, Turkish, Filipino, Polish, Swedish, Bulgarian, Romanian, Arabic (Saudi Arabia, UAE), Czech, Greek, Finnish, Croatian, Malay, Slovak, Danish, Tamil, Ukrainian, and Russian.
What file formats can I export for Audio Description?
You can export Audio Description from Subly in various formats: .mp4, .mp3, .srt, .webvtt, .txt, .docx, .pdf.
| Element | Captions | Normal transcript | Descriptive transcript | Audio description (AD) |
|---|---|---|---|---|
| Spoken dialogue | ✔ | ✔ | ✔ | ✔ (in original audio) |
| Speaker identification (who is talking) | ✖ (optional) | ✖ (optional) | ✔ | ✖ |
| Non-speech audio (music, applause, door slams, laughter) | ✔ (basic) | ✔ (basic) | ✔ (with context) | ✔ (in original audio) |
| Visual information important to understanding | ✖ | ✖ | ✔ | ✔ |
| Time-coding for syncing | Optional | Optional | Optional but common | ✔ (audio is synced) |
| Delivered as plain text screen-reader can read | Sometimes | Always | Always | Sometimes |
What does Audio Description typically include?
Audio Description narrations describe key on-screen actions, text, facial expressions, gestures, scene changes, and visual context.
Audio Description & Accessibility Standards
Is Audio Description required by WCAG?
Yes, under WCAG 2.1 and 2.2:
Level A (1.2.3): Requires Audio Description or a descriptive transcript for pre-recorded video.
Level AA (1.2.5): Requires Audio Description for all pre-recorded video content that includes important visuals not conveyed in the audio.
Level AAA (1.2.7): Adds enhancement for extended descriptions.
Does the European Accessibility Act (EAA) require Audio Description?
Yes, it requires conformance with WCAG 2.1 Level AA for all digital products and services.
Is Audio Description required under the ADA?
Yes. The Americans with Disabilities Act (ADA) requires Audio Description for videos used by public agencies, education providers, and private companies when visuals convey key information.