The best M4A to text converter

Sonix combines speed (10x real-time), accuracy (up to 99%), and affordability ($10/hour) with an easy-to-use interface. That's why experts rate us #1.

Sonix is faster and more accurate than most alternatives, while being more affordable than professional transcription services.

Yes! Sign up for free and get 30 minutes of free transcription. No credit card required to try Sonix.

Sonix achieves up to 99% accuracy using advanced AI. Results depend on audio quality and speech clarity.

Sonix converts M4A files 10x faster than real-time. A 30-minute file takes about 3 minutes.

Sonix is trusted by journalists, researchers, and businesses worldwide. Our editor and export options are built for professional workflows.

Export or share the recording from the Voice Memos app, then upload the M4A file directly. Once the automatic transcript is ready, you can edit it and export the text in your preferred format.

Not exactly. AAC is the audio codec, while M4A is the MPEG-4 container that usually holds AAC data (and sometimes Apple Lossless). In practice, most M4A files play anywhere AAC is supported.