Convert M4A to WAV
Convert any audio file to WAV format online for free. Fast, secure, and easy-to-use audio to WAV converter with no software installation required.
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Supported formats (Max 50MB, 30 min • Sign in for 200MB, 1 hr)
Why Choose Scriptivox M4A to WAV Converter?
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How to Use M4A → WAV
Upload File
Drag and drop your M4A file or click to browse. Supports files up to 1GB.
Convert
Select WAV as your output format and click convert. Our servers will process your file instantly.
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Download your converted file instantly. The download link expires in 1 hour for security.
M4A vs WAV: format comparison
How the two formats differ on the things that change your result.
| Specification | M4A (source) | WAV (result) |
|---|---|---|
| Container | MPEG-4 Part 14 | RIFF WAVE |
| Developed by | Apple / MPEG | Microsoft / IBM |
| Introduced | 2003 | 1991 |
| Audio codecs | AAC-LC, HE-AAC, ALAC | PCM |
| Compression | Depends on codec | Uncompressed |
| Max sample rate | 96 kHz | 192 kHz |
| Max channels | 8 | 8 |
| Gapless playback | Yes | Yes |
| Metadata / tags | MPEG-4 iTunes-style atoms | RIFF INFO (limited) |
| Approx. file size | 0.72–1.92 MB per minute | 10–32 MB per minute |
| Licensing | Patent-licensed | Royalty-free |
| Plays natively on | Native: Web browsers, Windows, macOS, iOS, Android, Smart TVs | Native: Web browsers, Windows, macOS, iOS, Android · Needs a player: Smart TVs |
| Best for | the Apple ecosystem, music libraries, audiobooks | studio editing, mastering, sample libraries |
What changes when you convert M4A to WAV
MPEG-4 Part 14 is a container rather than a single codec, so what it holds depends on how the file was made. It can carry AAC-LC, HE-AAC, ALAC, which means two files with the same extension can differ in quality and size. Check the source before assuming which one you have.
The two formats are aimed at different jobs. M4A is typically used for the Apple ecosystem, music libraries, audiobooks, while WAV is the usual pick for studio editing, mastering, sample libraries. That difference in intent is what most of the specification gaps above come from.
Expect metadata to be rewritten rather than copied: MPEG-4 iTunes-style atoms in the source becomes RIFF INFO (limited) in the result. Standard fields map cleanly; niche custom tags often do not.
About M4A to WAV Conversion
This page converts M4A files, stored in the MPEG-4 Part 14 container since 2003, into WAV, which uses RIFF WAVE and dates from 1991. The differences between the two containers decide what changes in the result.
M4A comes from Apple / MPEG and dates to 2003. It carries AAC-LC, HE-AAC, ALAC, which is what determines the quality ceiling of anything you convert out of it.
WAV was introduced by Microsoft / IBM in 1991. It carries PCM and has native playback on 5 of six platform categories, which is the practical reason to choose it as a target.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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