About WAV to M4A
WAV recordings are huge. M4A (AAC) shrinks them for Apple devices, podcasts, or email while keeping good quality.
Encoded as AAC at the bitrate you choose; 128 kbps for speech and 192–256 kbps for music are sensible.
The FFmpeg engine (about 31 MB) downloads the first time you convert and is then cached by your browser. Files up to about 100 MB are supported because everything runs in browser memory.
WAV vs M4A
| WAV | M4A | |
|---|---|---|
| What it is | Uncompressed audio | AAC audio in an MP4 container |
| Typical codecs | PCM (16-bit here) | AAC |
| Common use | Editing, DAWs, maximum compatibility | Apple devices, voice memos, iTunes |
How to do it
- 1
Drop a WAV file into the converter above (already set to M4A).
- 2
Pick a bitrate if you want something other than 192 kbps.
- 3
Tap Convert, keep the tab open until it finishes, then download the M4A.