WAV to M4A Converter
Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.
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Convert WAV to M4A online
Use this WAV to M4A converter to turn WAV files into M4A right in your browser — ideal for Apple music and voice memos and podcasts. WAV uses no compression and M4A uses lossy compression, so file size and quality can change.
When should you convert WAV to M4A?
- To reduce file size and make uploading and sharing easier
- When you need it for Apple music and voice memos
- When you need it for podcasts
- To open your files in apps that prefer M4A
What happens to your file
The WAV audio is decoded and re-encoded to M4A with AAC in an MP4 container at 192 kbps, +faststart. There is no video stream involved, so the job is quick even for long recordings.
Settings this conversion runs with
| Engine | ffmpeg |
|---|---|
| Output codec | AAC in an MP4 container |
| Setting | 192 kbps, +faststart |
| Compression | Lossy |
What changes
- WAV holds the full waveform, and M4A does not. This pass permanently discards the parts of the signal the codec judges inaudible — keep the WAV file if it is your master.
- Cover art, lyrics, and most tags are not carried across — the output keeps the audio, not the metadata around it.
About WAV and M4A files
WAV audio
Strengths
- uncompressed quality
- ideal for editing
- no artifacts
Limitations
- very large files
- not for sharing online
M4A audio
Strengths
- good quality at small size
- default on Apple devices
Limitations
- lossy
- needs converting for some players
WAV vs M4A
| Format | WAV | M4A |
|---|---|---|
| Compression | None | Lossy |
| Transparency | — | — |
| Best for | recording and editing, studio-quality audio | Apple music and voice memos, podcasts |
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Frequently asked questions
- Does converting WAV to M4A re-encode the file?
- The WAV audio is decoded and re-encoded to M4A with AAC in an MP4 container at 192 kbps, +faststart. There is no video stream involved, so the job is quick even for long recordings.
- What should you know before converting WAV to M4A?
- WAV holds the full waveform, and M4A does not. This pass permanently discards the parts of the signal the codec judges inaudible — keep the WAV file if it is your master.
- Is this WAV to M4A converter free?
- Yes. You can convert WAV to M4A online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. Use the converter from your browser without installing software or creating an account. Files are uploaded to our servers for processing.
- Will converting WAV to M4A reduce quality?
- M4A uses lossy compression, so the file can get smaller while some visual quality may change.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.