M4A to WAV
Turn M4A files, such as iPhone voice memos, recordings and iTunes music, into WAV files for editing software, sound equipment and phone systems. Everything happens on your own device, so your recordings are never uploaded.
How to use it
- Choose your M4A files, or drag them onto the box.
- Each one is converted to WAV on your device, at the sample rate it was recorded at.
- Download each WAV, or all of them together as a ZIP file.
What you get
A standard WAV file that almost any editing program, sound desk or phone system accepts. It keeps the sample rate of the original, for example 48 kHz for most iPhone recordings, so nothing is stretched or resampled. Files in Apple Lossless (ALAC), which are also saved as .m4a, can only be read by Safari; in other browsers the page says so.
Expect much larger files
WAV does not compress sound, so it takes roughly 10 MB for every minute of stereo. Most M4A files are compressed with AAC, and converting to WAV cannot restore detail that AAC left out; it makes the sound easier for other software to handle, not better.
Questions
Can I convert iPhone voice memos?
Yes. Voice memos are M4A files. Send them to your computer, or open this page on the iPhone itself, and choose them here.
Are my files uploaded?
No. The work happens inside your web browser, on your own device. Before your file is opened, this page locks itself: from then on your browser refuses to let it fetch, upload or send anything at all. You can check: once the page has loaded, switch off your internet connection and it will still work. How the lock works.