M4A is what iPhones, Zoom's audio-only files and Windows Sound Recorder save. Upload the file as it is (no need to turn it into MP3 first) and Wave AI gives you a transcript with speakers and timestamps, plus a summary.
Drop an M4A file here
Any .m4a, up to 200MB. Free, no account needed.
M4A is AAC audio in an MPEG-4 wrapper, the same family as MP4 video without the picture. You'll usually get one from:
No. M4A uploads as it is. Converting to MP3 adds a step and loses a little quality without improving the transcript.
Check it's under 200MB and that it plays with sound on your computer. If it plays but still fails, it may use an unusual codec: export it again as MP3 from any audio app and upload that.
Almost. Both use the MPEG-4 container; .m4a holds only audio, .mp4 usually holds video too. If you have the MP4, you can upload it here or on the MP4 to text page.
Up to 200MB per file, which for a typical voice recording is several hours. You can transcribe up to 5 files a day for free.
Yes. Lossless M4A files are bigger, so a long one may pass 200MB; if it does, export it as standard AAC first.
Related: Free Audio Transcription: Transcribe Audio to Text with AI · Transcribe Your Voice Memos Into Searchable Text
Product
Use Cases
Compare
All rights reserved
Made with love in New York City