Transcribe an M4A file
The format iPhone voice memos and most call recorders use. Drop it in as it is — no converting to MP3 first.
- Straight from Voice Memos, no converting
- AAC and Apple Lossless, any bitrate
- Long recordings: a two-hour lecture is one file
How it works
- 01
Drop the M4A
Share it from your phone or drag it in from your computer.
- 02
We transcribe it
With language detection and speakers separated if there are several.
- 03
Read it and export it
DOCX, PDF, SRT, CSV or JSON, with your fixes included.
What goes in
- M4A
Up to 10 GB per file, as many files as you want in one batch. The language is detected on its own.
What comes out
- DOCX
- SRT
- VTT
- CSV
- JSON
The same transcript, in whichever file you need. Your corrections are included in all of them.
- Speakers separated
- 90+ languages
- EU servers
The format iPhone voice memos and most call recorders use. Drop it in as it is — no converting to MP3 first.
In detail
M4A is what an iPhone Voice Memo, a Mac recording and half the call recorders on Android produce. It's an MP4 container carrying AAC audio, and it's the file most people find themselves holding when they want something transcribed.
It's also the format most online converters refuse, which is why «m4a to mp3» is such a common search. You don't need that step here: we read it directly, at whatever bitrate and sample rate your phone chose.
- AAC and Apple Lossless (ALAC), both read directly.
- Voice Memos recorded in Lossless mode, which are much heavier, upload fine.
- No re-encoding to MP3, which is where a conversion loses a little quality.
- The `.m4a` from a call recorder transcribes the same as any other file.
What people use it for
iPhone voice memos
The classic: an idea, an interview or a class recorded in the Memos app.
Recorded calls
Most call recorders write M4A. Straight in, without a middle step.
Lectures
Two hours of class in one file, transcribed with timestamps to find the part you need.
Questions
Start with your own recording
The format iPhone voice memos and most call recorders use. Drop it in as it is — no converting to MP3 first.