WAV M4A
File conversion

Convert WAV to M4A

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Is it possible to convert WAV to M4A?
Yes - WAV converts to M4A.

You can do it right here with our free converter - no sign-up, and your file is deleted right after.

Upload your WAV above and download the converted M4A in seconds for free. On macOS, the built-in Music app handles this without extra software. The key caveat: M4A uses AAC compression, which is lossy - keep your original WAV if you plan to re-edit the audio.

Also to M4A: CAF · OGG · APE

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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WAV → M4A converterFREE

Why convert WAV to M4A?

WAV stores uncompressed audio at roughly 10 MB per minute at CD quality, making files impractical to share or store on a phone. Converting to .M4A cuts that size by 5-10× while keeping quality high enough for everyday listening. M4A is natively supported on iPhones, iPads, and all Apple platforms, and plays back fine on Android and Windows too.

How to convert WAV to M4A

macOS Music app BUILT-IN

Set Import Settings to AAC Encoder in Music, drag in your WAV, then choose File > Convert > Create AAC Version.

VLC FREE

Use Media > Convert/Save, pick an AAC profile, set the output extension to .m4a, and click Start.

fre:ac OPEN-SOURCE

Add your WAV to fre:ac, select the AAC encoder, and export as M4A in one click.

Command line - ffmpeg CLI

Run ffmpeg -i input.wav -c:a aac -b:a 192k output.m4a - raise -b:a to 256k for higher quality or lower it to 128k for smaller files.

Programs that convert WAV

About these formats

Quality & what to watch

  • Conversion is lossy: AAC discards audio data, so keep the original WAV if you need it for further editing.
  • 192 kbps AAC is indistinguishable from the source for most listeners; 128 kbps suits voice recordings, 256 kbps suits critical music listening.
  • M4A supports embedded metadata (title, artist, album art) better than WAV does, so the converted file is easier to tag and organise.

Frequently asked questions

Does converting WAV to M4A reduce quality?
Yes - AAC is lossy, so some audio data is permanently discarded. At 192 kbps or higher the difference is barely audible for most listeners.
Can I convert M4A back to WAV?
You can decode an M4A to WAV, but quality lost during the original compression cannot be recovered - the result will be uncompressed but not identical to the source.
What bitrate should I use?
192 kbps is a safe default for music. Use 128 kbps for voice or podcasts, and 256 kbps if quality on good headphones matters.
Does M4A play on Windows?
Yes - VLC, the Windows 11 Media Player, and most modern players open M4A files without extra codecs.