.SRT · .VTT · .TTML
Script file
Timed description text for players with text-based AD, web video and e-learning platforms.
For: Platforms, universities, public agencies
Done-for-you audio description · Script / Track / Mix
Audio description.Delivered in days.
Produced with our in-house AI pipeline and 100% reviewed by professional describers. Delivered as a script file, a standalone AD track or a broadcast-ready mix, for less than traditional studios charge.
What is Synchrogen’s audio description service?
It is a done-for-you audio description service for film, video and streaming. You send a video; our in-house AI pipeline finds the gaps in dialogue and drafts first-pass descriptions with timings; a professional describer rewrites and approves every line; and you receive a script file (SRT/VTT/TTML), a standalone AD audio track or a broadcast-ready mix. Pricing is €4.40–7.90 per finished minute, depending on volume and options (full pricing). Want to produce descriptions yourself? See Synchrogen’s audio description software.
00:01:14:08Why the service
Studio quality. Without the studio timeline.
Our in-house AI pipeline handles the groundwork. Professional describers spend their time where it matters: on the words your audience hears.
01 ·
Faster
Up to 3× faster than traditional studio production. Delivery dates are agreed upfront for your volume, with rush turnaround available.
02 ·
Human in the loop, every line
Every script is written, edited and signed off by a professional describer. Nothing ships without human review.
03 ·
Lower cost, same standard
Automation removes the busywork, so you pay a fraction of typical studio rates. Same guidelines, same QC.
00:02:30:00Deliverables
Delivered the way your pipeline needs it.
Pick one format or combine them. Every order includes the final script.
.WAV stem · 48 kHz
AD audio track
A standalone voiced description track, ready to drop into your own mix.
For: Post-production and localization studios
Turnkey · broadcast spec
Full mix
Broadcast-ready mix: program audio mixed with description, ducking applied, loudness to your delivery spec.
For: Anyone who wants it ready to publish, no audio work on your side
- Options:
- Synthetic voice
- Human voice talent
- Extended AD
- Multiple languages
- Rush delivery
00:03:12:16The workflow
Four steps. One delivery.
- 01 ·
Upload
Share a link or upload securely. Tell us the format and delivery spec.
- 02 ·
AI pipeline draft
Our in-house AI pipeline detects dialogue gaps and drafts first-pass descriptions with timings.
- 03 ·
Expert describers
A professional describer rewrites and refines every line for accuracy, priority and tone.
- 04 ·
QC & delivery
Independent quality check, then delivery in your chosen format.
00:04:08:12AI-assisted, human-finalized
The machine does the timing. People do the telling.
Our describers are experienced professionals working to established description guidelines. Our in-house AI pipeline finds the gaps in dialogue and drafts first passes, so their expertise goes into word choice, priority and tone, not stopwatch work.
00:06:30:08Compliance
Built for accessibility requirements.
Our deliverables are produced to meet the standards broadcasters, streamers and public bodies work to in the EU, the UK and the United States, from the European Accessibility Act and EN 301 549 to Ofcom, ADA Title II and Section 508.
One vendor, one workflow, ready for distribution on both sides of the Atlantic.
- WCAG 2.1 Level AA
- SC 1.2.3 and 1.2.5: audio description for prerecorded video. Referenced by EN 301 549 in the EU and the DOJ ADA Title II rule in the U.S.
- EN 301 549
- The harmonised European accessibility standard for ICT, including video and audio description requirements.
- European Accessibility Act (EAA)
- Directive (EU) 2019/882, in force since June 2025 for audiovisual media services and related products.
- AVMSD
- Audiovisual Media Services Directive: accessibility obligations for broadcasters and on-demand services across EU member states.
- Web Accessibility Directive
- Directive (EU) 2016/2102 for public sector websites and apps, including video content.
- Ofcom (UK)
- Ofcom Code on Television Access Services and audio description quotas for UK broadcasters, extended to on-demand services under the Media Act 2024.
- ADA Title II & Section 508
- For U.S. public entities, federal agencies, contractors and federally funded programs.
- DCMP Description Key
- Description style and quality guidelines widely used in the U.S.
- FCC / CVAA practices
- Audio description for broadcast and streaming distribution.
- Extended AD on request
- WCAG 2.1 SC 1.2.7 (Level AAA) for content with few natural pauses.
Built for teams in
- Broadcast & streaming
- Post-production & localization
- Universities & public agencies
- Museums & culture
- E-learning
00:07:20:04Free sample
See the quality before you pay.
Send up to 3 minutes of your video. We return a fully described sample in your chosen format, free, within 24 hours.
- No payment details needed
- NDA available on request
- Your files are deleted after delivery
00:08:12:00Asked by every buyer
Frequently asked questions.
01Is this AI-generated audio description?+
No. It is AI-assisted. Our in-house AI pipeline drafts timings and first-pass descriptions; a professional describer rewrites, edits and approves every line before QC. Nothing ships without human review.
02How fast is turnaround?+
Up to 3× faster than traditional studio production. Delivery dates are agreed upfront for your volume, and rush turnaround is available. The free sample (up to 3 minutes of your video) comes back within 24 hours.
03Which file formats do you deliver?+
Three formats, alone or combined. A script file (SRT, VTT or TTML) with timed description text; a standalone AD audio track (WAV stem, 48 kHz) to drop into your own mix; or a broadcast-ready full mix with ducking applied and loudness set to your delivery spec. Every order includes the final script.
04Do you offer human narration?+
Yes. Voice is an option on every order: choose a synthetic voice, or human voice talent. Extended AD, multiple languages and rush delivery are available as options too.
05Will this meet ADA Title II and Section 508 requirements?+
Our deliverables are produced to the standards those rules point to, including WCAG 2.1 Level AA success criteria 1.2.3 and 1.2.5 for audio description of prerecorded video. Whether a given video is compliant also depends on how and where you publish it, and we do not provide legal advice, so confirm obligations for your organisation with your own counsel.
06How do you handle confidential content?+
Share a link or upload securely. An NDA is available on request, no payment details are needed for the free sample, and your files are deleted after delivery.
Ready to make your content accessible?
Built for EAA 2030 · ADA · WCAG 2.1 AA · Section 508 · 100% human-reviewed