Precise frame timing
Word-level timestamps mapped to your video's frame rate. Subtitles land exactly where they should.
Subtitle Creation
Subtitles that ship frame accurate.
Auto-generate, edit, and export broadcast-quality subtitles in 30+ languages — with frame-accurate timing, speaker labels, and a built-in studio editor for review.
Y
Your voice
10s reference
Cloned
SRTVTTASSTTMLJSONBurned-in MP4+ 22 more
Production-ready in 30+ languages — one platform, every workflow
EnglishSpanishMandarinJapaneseHindiArabicFrenchGermanPortugueseKoreanItalianTurkishRussianDutchPolishEnglishSpanishMandarinJapaneseHindiArabicFrenchGermanPortugueseKoreanItalianTurkishRussianDutchPolish
Everything needed for subtitle creation
Translate while you transcribe
Generate subtitles in the source language and 30+ target languages — in a single pass.
Auto-detect who said what
Speaker diarization labels each subtitle with the right voice — even on multi-party interviews.
Review and tweak in seconds
Side-by-side video and subtitle editor with hotkeys, search, and bulk operations. Built for editorial workflow.
SRT, VTT, ASS, TTML, JSON
Export the format your editor or platform expects. Burned-in MP4 also available for ready-to-publish video.
Deliver full catalog overnight
Queue an entire video library and ship subtitles in every supported language by morning.
Drop in a video. Watch captions write themselves.
Animated preview of the live transcription pipeline — words land as they're spoken, confidence tracks every cue, low-confidence spans are flagged for review.
transcribing live
Source videoEN-US · 30 fps
M
transcribing
00:00.0000:31.00
Confidence · cue 180%
Translate subtitles to
EN-USES中文日本語FRDE
Subtitle track · 5 cueslow confidence
- 1cue 1·0.0s / 6.0s
▋
- 2awaiting audio…
·····
- 3awaiting audio…
·····
- 4awaiting audio…
·····
- 5awaiting audio…
·····
ExportSRTWebVTTASSTTMLJSONDOCXBurned-in MP4
Streaming · 0.4s lagFrameAccurate timing
30+Languages from one pass
AutoSpeaker labels
AllSubtitle formats
Easy 4-step production
From idea to deployed audio in minutes. No DAW, no studio booking, no model training.
STEP 01
Drop in your video
Use any common video format. We auto-detect language and frame rate.
STEP 02
Auto-generate subs
Frame-accurate subtitles with speaker labels in seconds. Translate to 30+ languages in the same pass.
STEP 03
Polish in the editor
Side-by-side video + subtitle editor. Hotkeys, search, replace, & bulk timing nudges.
STEP 04
Export anywhere
SRT, VTT, ASS, TTML, JSON — or burned in into rendered MP4.
Every team that needs production subtitles
Subtitles the same day as the cut
Stop blocking the editor on a captioning vendor. Generate frame-accurate subs in every language while your edit is still rendering.
Same-dayAs the cut
30+Languages
FramePerfect timing
What changes for you
- Skip third-party captioning vendors
- Localize captions in parallel
- Fix timing in the studio editor
- Hand off SRT/VTT to your editor
What you'll use
- Frame-accurate timing
- SRT / VTT / ASS export
- Burned-in subtitles
- Editor handoff
What teams shipping with SonicVox® actually say
"We used to wait three days for captions. Now they ship the same day as the cut, in eight languages, frame-accurate."
Is
Illustrative scenario
Composite example — not a customer quote · Northwind
"The studio editor changed our workflow. Bulk timing nudges, search-replace, hotkeys — captioning finally feels modern."
Is
Illustrative scenario
Composite example — not a customer quote · Cadence Studios
"FCC compliance audit turned from a quarterly ordeal into a one-click report."
HB
Hannah Becker
Compliance Lead · Vector Media
Frequently asked questions
Industry-leading word error rate, with frame-accurate timing on common frame rates (24, 25, 29.97, 30, 60 fps).
Get Started
Caption your first video — in under a minute
Frame-accurate. 30+ languages. Speaker labels. Every format your editor expects.
Frame-accurate timing 30+ languages out of the box Every export format No credit card required
