Language support
Supported languages
Online Video Transcription - Subtitles
Upload video files in MOV, MKV, AVI, WebM, or MP4 containers to extract speech into timestamped transcripts, speaker-labeled dialogue, and subtitle tracks. Check language support before submitting your file.
Speaker diarization
Millisecond timestamps
SRT, VTT & DOCX export
Video Transcription workflow
Diarization
Workflow quality controls
GDPR
Secure private processing
Definition
What is Video Transcription?
Upload video files in MOV, MKV, AVI, WebM, or MP4 containers to extract speech into timestamped transcripts, speaker-labeled dialogue, and subtitle tracks. Check language support before submitting your file.
Transcript preview
Video Transcription transcript preview
Speech is recognized and structured with automatic speaker labels and millisecond timestamps ready for export to TXT, DOCX, or SRT.
Audio input
AUDIO
Team meeting recording
Transcript
TXT / SRT
[00:04] Speaker 1:
Welcome to the project sync, let us review the milestones.
[00:28] Speaker 2:
The initial draft is complete and ready for feedback.
Speaker-labeled transcript
Video Transcription features
Multi-Container Stream Demuxing
Reads audio directly from MOV, MKV, WebM, AVI, and MP4 containers without transcoding video frames, saving processing overhead on large recordings.
NLE Timeline Synchronization
Export subtitle tracks ready for direct drag-and-drop import into Adobe Premiere Pro, DaVinci Resolve, Final Cut Pro, and Avid Media Composer.
Multi-Speaker Diarization
Labels distinct speakers across panel discussions, interviews, and multi-person conference recordings with precise turn-taking markers.
WCAG 2.1 Caption Standards
Generate closed captions structured to meet WCAG 2.1 AA multimedia compliance requirements for public broadcast and educational institutions.
Diverse Acoustic Modeling
Robust acoustic speech recognition tuned to handle background atmosphere, room reverberation, and varied regional accents.
Why Choose Our Video Transcription Service?
Transcribe video in the container it was recorded in. ForgeFile demuxes audio streams directly from QuickTime MOV, Matroska MKV, WebM, AVI and MP4 containers without decompressing or re-rendering visual frames, preserving pristine sample rates for acoustic speech recognition.
Post-production and caption delivery: export synchronized subtitle tracks formatted for non-linear editing (NLE) software or structured scripts with speaker diarization for editorial review, meeting records, and documentation.
Production & Post-Production Workflows
- NLE timeline synchronization - Drop exported SRT or WebVTT tracks into Adobe Premiere Pro, DaVinci Resolve, or Final Cut Pro caption layers.
- Panel discussions and interviews - Separate audio cues into distinct speaker turns with millisecond timestamp anchors.
- Broadcast and legal records - Retain verbatim text records of recorded depositions, hearings, and corporate webinars.
- Broadcast accessibility standards - Format closed captions aligned with WCAG 2.1 AA accessibility guidelines.
Container Demuxing & Audio Processing
- Direct stream extraction - Extracts linear PCM, AAC, AC3, or Opus audio tracks without video transcoding overhead.
- Acoustic diarization - Distinguishes between multiple speakers across panel recordings and group sessions.
- Check language support before submitting your file.
- Multi-format exports - Formatted text, Microsoft Word DOCX, structured JSON, SRT, and WebVTT tracks.
For captioning accessibility requirements, consult the W3C Web Accessibility Initiative.
How Video Transcription Works
- 1
Select video container
Upload your MOV, MKV, WebM, AVI, or MP4 recording. The demuxer reads the embedded audio track directly. The maximum file size depends on your plan.
- 2
Configure speech settings
Choose the spoken language, turn on speaker diarization for multiple speakers, and choose your preferred output format.
- 3
Demux audio and recognize speech
The engine demuxes the audio stream, runs acoustic speech recognition, and computes millisecond cue boundaries for each line of dialogue.
- 4
Save transcripts and captions
Export formatted DOCX or TXT files for editorial reading, or download SRT and WebVTT caption tracks for video players and editors.
Technical specifications
Video Transcription technical specifications
| Service Category | Audio & Video Transcription |
|---|---|
| Target Format / Capability | Video Transcription |
| Structure & Layout | Timestamps, punctuation and optional speaker labels |
| Maximum File Size | The maximum file size depends on your plan. |
| Security | Files are encrypted in transit and at rest. |
| Supported Languages / Locales | Language support |
| Export & Delivery Formats | TXT, DOCX, SRT, VTT |
Frequently Asked Questions - Online Video Transcription
How does container audio demuxing work?
The server unpacks embedded audio streams (such as AAC, PCM, or Opus) directly from MOV, MKV, AVI, or WebM wrappers without re-encoding video streams, preserving original acoustic fidelity.
Which video editors accept the exported subtitle files?
Exported SRT and WebVTT files import natively into subtitle and caption tracks in Adobe Premiere Pro, DaVinci Resolve, Final Cut Pro, and Avid Media Composer.
What recording factors affect video transcription accuracy?
Crosstalk from overlapping voices, loud background audio, and echo from untreated rooms reduce clarity. Clear directional microphones and separate speaker turns produce the most accurate transcripts.
How does multi-speaker diarization work on panel recordings?
The diarization model analyzes vocal timbre and acoustic pitch to segment dialogue into distinct speaker turns. It works best when speakers take turns without simultaneous talking.
Are the exported subtitles suitable for WCAG accessibility compliance?
Yes. The generated SRT and WebVTT tracks provide accurate synchronized timecodes suitable for meeting WCAG 2.1 Success Criterion 1.2.2 requirements.
Ready to Transcribe Your Video?
Upload video files to generate synchronized subtitle tracks and speaker-indexed transcripts. Check language support before submitting your file.