M4A to WAV

Many audio editors, transcription services, phone systems and older programs want WAV files. This converter decodes M4A (AAC or ALAC) audio into standard 16-bit PCM WAV.

How to convert M4A to WAV

1. Upload your M4A file.
2. Click Convert.
3. Download the WAV file.

M4A to WAV features

• Standard 16-bit PCM WAV.
• Works with AAC and Apple Lossless (ALAC) M4A files.
• Ideal for transcription and audio editing.

AAC and Apple Lossless inside M4A

An M4A file can contain either AAC (lossy, used by Voice Memos and most iTunes downloads) or ALAC (Apple Lossless, used for high-quality music). Both are converted to standard PCM WAV. For ALAC files the WAV is a perfect copy of the original sound; for AAC files it keeps the quality exactly as it is now.

Frequently asked questions

Does converting to WAV improve the quality?

No, it keeps the quality of the M4A and adds no further loss, which is important for editing.

Why is the WAV so much larger?

WAV is uncompressed, about 10 MB per minute of stereo audio.

Can I use the WAV for a phone system or IVR?

Most systems accept 16-bit PCM WAV. If yours requires a specific sample rate, check its documentation.

Is my recording private?

Yes, it is deleted 60 minutes after processing.

Privacy, limits and file safety

Your files are processed on our own server, are never shared with anyone and are deleted automatically 60 minutes after processing. You can upload files up to 500 MB and 60 minutes long. No sign-up, no watermark and no software to install: it works in any modern browser on Windows, Mac, Android and iPhone.

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