File Formats

Convert any file format to text

Sonix supports 44+ audio and video file formats. Upload your files and get accurate transcripts in minutes, not hours.

44+ formats
53+ languages
99% accuracy
Audio
Video
DOCX
SRT/VTT
PDF
53+ Languages
44+
File Formats
Audio and video formats supported
53+
Languages
Languages for transcription
30+
Export Options
Text, PDF, DOCX, SRT, VTT
99%
Accuracy Rate
Industry-leading AI accuracy
Common Questions

Everything you need to know about
file formats

What audio file formats does Sonix support?

Sonix supports all major audio formats including MP3, WAV, M4A, AAC, FLAC, OGG, WMA, and many more. Our AI-powered transcription works with over 30 different audio file extensions.

What video file formats can I convert to text?

Sonix supports all popular video formats including MP4, MOV, AVI, MKV, WEBM, WMV, and more. We extract the audio track and transcribe it with high accuracy.

How accurate is Sonix transcription?

Sonix achieves up to 99% accuracy using advanced AI speech recognition. Accuracy depends on audio quality, speaker clarity, and background noise levels.

What export formats are available?

Export your transcripts in multiple formats: plain text (.txt), Microsoft Word (.docx), PDF, SRT subtitles, VTT captions, and more specialized formats like FCPXML for video editors.

Can I transcribe files in different languages?

Yes! Sonix supports transcription in over 53 languages including English, Spanish, French, German, Chinese, Japanese, and many more. You can also translate transcripts between languages.

Is there a file size limit?

Sonix supports files up to 4GB in size. For larger files, you can split them into smaller segments or contact our support team for enterprise solutions.

Why Sonix

The best way to convert files to text

Universal Compatibility

Support for 44+ audio and video file formats means you can upload virtually any file without conversion.

Lightning Fast

Our AI processes files 10x faster than real-time. Get a transcript of a 30-minute recording in just 3 minutes.

Multiple Export Options

Export to text, Word, PDF, SRT, VTT, and more. Integrate seamlessly into your workflow.

53+ Languages

Transcribe and translate in over 53 languages. Reach global audiences with multilingual support.

Customer Reviews

Trusted by professionals worldwide

4.98 rating from 211 reviews

It really accelerated my work and I was amazed by the accuracy, especially given that the video featured only non-native speakers.
MC
Martin C.
Nottingham, United Kingdom
I have been a dialogue system researcher for half a decade now. I had build my own app for doing the transcriptions. Sonix was clearly better than what I had. I made the switch!
RM
Ramesh M.
Portland, OR USA
Sonix is easy to use. Ridiculously easy. And even though the accuracy wasn't perfect it saved several days in a typical transcription cycle and the hourly cost we usually pay.
KA
Kyle A.
San Francisco, CA USA
I’m convinced that Sonix at the moment is the best transcription service existing anywhere in the world.
HF
Helmut F.
Stuttgart, Germany
Fast, easy transcription. Also the ability to edit in the software with the recording before exporting is a great feature. I have already recommended you to a friend.
SK
Sam K.
Miami, FL USA
Sonix transcription service has dramatically reduced the time I need to spend on clients' interviews. Tremendous help!
CW
Curt W.
Boise, ID, USA
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