Convert any audio file to text

Sonix supports 30+ audio file formats. Upload your MP3, WAV, M4A, or any audio file and get accurate transcripts in minutes.

30+ formats
53+ languages
99% accuracy
MP3
WAV
M4A
AAC
FLAC
OGG
30+
Audio Formats
MP3, WAV, M4A, AAC, FLAC, and more
53+
Languages
Languages for transcription
30+
Export Options
Text, PDF, DOCX, SRT, VTT
99%
Accuracy Rate
Industry-leading AI accuracy
Common Questions

Everything about audio transcription

What audio file formats does Sonix support?

Sonix supports all major audio formats including MP3, WAV, M4A, AAC, FLAC, OGG, WMA, AIFF, and over 30 more. Upload any audio file and we'll transcribe it.

Which audio format gives the best transcription accuracy?

Uncompressed formats like WAV and AIFF typically give the best results. However, high-quality MP3 files (192kbps+) also produce excellent transcriptions.

Can I convert podcasts to text?

Yes! Upload your podcast audio file in any format and Sonix will transcribe it. You can then create show notes, blog posts, or searchable transcripts.

How do I transcribe voice memos?

Simply upload your voice memo file (M4A from iPhone, or any format) to Sonix. We'll transcribe it in minutes with speaker identification.

Can I transcribe music with lyrics?

Sonix is optimized for speech transcription. While it can transcribe sung lyrics, it works best with spoken content like podcasts, interviews, and meetings.

What's the maximum audio file size?

Sonix supports audio files up to 4GB in size. For longer recordings, our intelligent processing handles them efficiently.

Why Sonix

The best audio to text converter

All Audio Formats

Support for MP3, WAV, M4A, AAC, FLAC, OGG, WMA, and 30+ more audio formats.

Crystal Clear Results

Advanced AI optimized for audio clarity. Get accurate transcripts even from compressed audio.

Speaker Detection

Automatic speaker identification separates different voices in your audio recordings.

Timestamps Included

Every word is timestamped for easy navigation and reference in your transcript.

Customer Reviews

Trusted by audio professionals

4.98 rating from 211 reviews

I was truly amazed by the quality of the transcript I received from you.
AS
Andrea S.
Szeged, Hungary
I loved that Sonix supports so many languages. I've been working on a project that involves speakers of 6 different languages and it allows me to translate everything into English ...
PG
Paula G.
Sao de los Campos, Brazil
This software is still the best one out there for the German language.
PP
Paul P.
Vienna, Austria
I tried 3 other tools online and I can say that sonix blows them out of the water. I was very impressed with the ease of use, the % of words correctly translated and how simple it ...
MB
Maria B.
Peoria, AZ USA
The transcription was pretty darn good!
AD
Andy D.
Los Angeles, CA USA
Wow very cool. Sonix is so awesome. There will be huge demand for this. The editor will be really good for team sharing. Such a great platform.
KT
Karla T.
Toronto, Canada
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