Language support
Supported languages
Online Audio Transcription - Speech to Text
Upload audio recordings in uncompressed WAV, lossless FLAC, M4A, OGG, or AAC formats to generate speaker-indexed transcripts and timestamped text files. Check language support before submitting your file.
Speaker diarization
Millisecond timestamps
SRT, VTT & DOCX export
Audio Transcription workflow
Diarization
Workflow quality controls
GDPR
Secure private processing
Definition
What is Audio Transcription?
Upload audio recordings in uncompressed WAV, lossless FLAC, M4A, OGG, or AAC formats to generate speaker-indexed transcripts and timestamped text files. Check language support before submitting your file.
Transcript preview
Audio 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
Audio Transcription features
Multi-Codec Acoustic Ingestion
Directly processes uncompressed PCM WAV, lossless FLAC, ALAC, OGG Opus, and AMR voice recordings without conversion artifacts.
Speaker Diarization
Automatically identifies and segments distinct voices in group discussions, board meetings, and panel sessions.
Millisecond Timestamps
Generates accurate timecode markers at paragraph and sentence boundaries for seamless navigation through recordings.
Diverse Speech Acoustic Modeling
Tuned for varied room acoustics, microphone placements, and multi-accented international English dialogue.
Multiple Export Deliverables
Export transcripts as editable Microsoft Word DOCX, plain text, or timecoded SRT and WebVTT subtitle tracks.
Why Choose Our Audio Transcription Service?
Review the transcript against the recording before using it.
Multi-codec acoustic recognition: upload voice recordings from studio microphones, handheld field recorders, or conference room hardware. The engine handles linear PCM, lossless compression, and voice-band codecs without requiring manual pre-processing.
Audio Transcription Use Cases
- Legal and official proceedings - Transcribe hearings, depositions, and compliance calls into verbatim timestamped records.
- Academic fieldwork and oral histories - Convert multi-hour field recordings and ethnography interviews into searchable archives.
- Broadcast and studio production - Generate dialogue scripts from studio sessions and remote interview feeds.
- Corporate meetings and panels - Label speaker contributions across multi-person board meetings and webinars.
Acoustic Modeling & Audio Processing
- Broad format compatibility - Ingests WAV (broadcast BWF), FLAC, AIFF, M4A, OGG Opus, and AMR speech files.
- Speaker diarization - Identifies acoustic voice signatures to separate conversational turns.
- Check language support before submitting your file.
- Export formats - Structured Word DOCX, plain text TXT, SRT subtitle files, and WebVTT cues.
For an overview of sound preservation formats, consult the Library of Congress Format Descriptions for Sound.
How Audio Transcription Works
- 1
Upload audio recording
Select or drag your WAV, FLAC, M4A, OGG, or other audio file into the upload zone. The maximum file size depends on your plan.
- 2
Set language & speaker options
Choose the spoken dialogue language and turn on speaker diarization for recordings with two or more participants.
- 3
Acoustic speech recognition
The acoustic model processes the audio waveform, segments speaker turns, and creates millisecond timestamp boundaries.
- 4
Export transcript
Download your transcript as DOCX, TXT, or subtitle files for archival documentation and editorial review.
Technical specifications
Audio Transcription technical specifications
| Service Category | Audio & Video Transcription |
|---|---|
| Target Format / Capability | Audio 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 Audio Transcription
What sound formats does this general audio hub support?
The service accepts uncompressed WAV, lossless FLAC, AIFF, Apple M4A, OGG Opus, AAC, WMA, and AMR voice recordings.
How does audio recording quality impact transcription accuracy?
Clean directional microphones, minimal room reverberation, and avoiding simultaneous crosstalk produce the highest recognition accuracy. Review the transcript against the recording before using it.
How does speaker diarization handle group conversations?
The diarization engine detects acoustic vocal pitch and timber to label distinct speakers (Speaker 1, Speaker 2) across 2 to 8 participants.
Can I generate timecoded subtitle files from audio recordings?
Yes. Exporting as SRT or WebVTT provides synchronized timestamps suitable for audio players or video captioning tracks.
What document formats are provided for export?
Transcripts can be downloaded as formatted Microsoft Word (DOCX), plain text (TXT), SRT subtitle files, or WebVTT files.
Ready to Transcribe Your Audio?
Upload audio recordings to generate timestamped text transcripts and speaker-labeled scripts. Check language support before submitting your file.